{"id":10106,"date":"2025-11-13T09:59:49","date_gmt":"2025-11-13T09:59:49","guid":{"rendered":"https:\/\/allin.online\/standard\/arwynebau-lloriau-a-waliau\/"},"modified":"2026-10-14T14:11:52","modified_gmt":"2026-10-14T14:11:52","slug":"arwynebau-lloriau-a-waliau","status":"publish","type":"standard","link":"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/symud-o-gwmpas\/arwynebau-lloriau-a-waliau\/","title":{"rendered":"Arwynebau Lloriau a Waliau"},"content":{"rendered":"\n<div class=\"wp-block-ace-standard-fixed-content flex content-content bg_white padding indent two-column\"><div class=\"content_wrapper\"><h3 id=\"page_sub_nav\" class=\"mobile_only\">3.02 Arwynebau Lloriau a Waliau<\/h3><select aria-labelledby=\"page_sub_nav\" class=\"mobile_only\" id=\"nav_select\"><option value=\"#overview\">Trosolwg<\/option><option value=\"#examples\">Enghreifftiau ymarferol<\/option><option value=\"#key_considerations\">Ystyriaethau allweddol<\/option><option value=\"#definitions_list\">Diffiniadau ac acronymau<\/option><option value=\"#learning_resources\">Adnoddau dysgu<\/option><option value=\"#linked_standards\">Safonau cysylltiedig<\/option><option value=\"#references\">Cyfeiriadau allanol<\/option><\/select><div class=\"action_links mobile_only\"><a href=\"https:\/\/form.jotform.com\/252393341563356?standard=Amgylchedd Adeiledig 3.02 Arwynebau Lloriau a Waliau\" class=\"feedback_link button bg_secondary white\">Rhowch adborth i ni ar y Safon hon<\/a><a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/\" class=\"return_link\">Yn \u00f4l i Amgylchedd Adeiledig<\/a><\/div>\n<div id=\"overview\" class=\"wp-block-ace-standard-overview standard-content\"><h3>Trosolwg<\/h3>\n<p class=\"wp-block-paragraph\">Mae&#8217;r canllaw hwn yn esbonio sut i ddarparu lloriau ac arwynebau waliau hygyrch, gan gynnwys acwsteg.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae nodweddion lloriau ac arwynebau waliau hygyrch a nodir yn <span title=\"Dogfen Gymeradwy M (ADM)\" data-definition-name=\"Approved Document M ADM\" data-definition=\"dogfen-gymeradwy-m-adm\" data-definition-id=\"9511\" class=\"ace-definition-inserter\"><\/span>, <span data-definition=\"dogfen-canllawiau-technegol-m-tgd-m\" title=\"Dogfen Canllawiau Technegol M (TGD M)\" data-definition-name=\"Technical Guidance Document M (TGD M)\" data-definition-id=\"9807\" class=\"ace-definition-inserter\"><\/span>, a <span title=\"BS8300\" data-definition-name=\"BS8300\" data-definition=\"bs8300\" data-definition-id=\"8521\" class=\"ace-definition-inserter\"><\/span> yn seiliedig ar egwyddorion dylunio i sicrhau y gall ymwelwyr:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>symud yn gyfforddus dros a rhwng arwynebau<\/li>\n\n\n\n<li>llywio gan ddefnyddio <span data-definition=\"palmant-botymog\" data-definition-id=\"9768\" title=\"Llawr botymog\" data-definition-name=\"Tactile flooring\" class=\"ace-definition-inserter\"><\/span> os oes angen<\/li>\n\n\n\n<li>nodi parthau, ardaloedd neu gyfeiriadau yn \u00f4l lliw, arddull neu farciau&#8217;r llawr a&#8217;r wal<\/li>\n\n\n\n<li>cynnal cyfathrebu \u00e2 staff ac ymwelwyr eraill, heb gael eu rhwystro gan arwynebau patrymog neu adlewyrchol<\/li>\n\n\n\n<li>symud o gwmpas yn ddiogel, gan leihau&#8217;r risg o lithro, baglu, cwympo neu wrthdrawiadau.<\/li>\n\n\n\n<li>mwynhau acwsteg dda gydag adlais lleiaf o&#8217;r waliau<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div id=\"examples\" class=\"wp-block-ace-standard-examples bg_grey inner-padding standard-examples\"><h3>Enghreifftiau ymarferol<\/h3>\n<h4 class=\"wp-block-ace-heading wp-block-ace-intro content-intro\"><\/h4>\n\n\n\n<div class=\"wp-block-ace-standard-example standard-example\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-image content-image alt-block\"><figure class=\"fill block-image alt-block\"><img decoding=\"async\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-148-scaled.jpg\" alt=\"Non-slip, non-reflective flooring in a theatre foyer with colour contrast to the walls and a smooth join to the next surface.\"\/><div class=\"alt_block\"><button class=\"alt_trigger\" aria-label=\"Amgen\">Amgen<\/button><div class=\"alt_modal\" id=\"image_block_5824\" role=\"dialog\" aria-label=\"Alt text\" aria-describedby=\"desc_image_block_5824\"><p id=\"desc_image_block_5824\">Non-slip, non-reflective flooring in a theatre foyer with colour contrast to the walls and a smooth join to the next surface.<\/p><button class=\"close\">Cau <span class=\"screen-reader-text\">Amgen<\/span><\/button><\/div><\/div><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-content-blocks border-top\">\n<div class=\"wp-block-ace-intro content-intro\"><p><strong>Disgrifiad o&#8217;r ddelwedd:<\/strong> Mae gan gyntedd y theatr lawr gwrthlithro sy&#8217;n cyferbynnu&#8217;n glir \u00e2&#8217;r waliau. Mae gan y llawr finyl llwyd ddyluniad plaen ac nid yw&#8217;n adlewyrchol. Mae cysylltiad llyfn yn bodoli rhwng llawr y cyntedd ac arwyneb gwahanol sy&#8217;n weladwy y tu mewn i&#8217;r awditoriwm.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-ace-standard-example standard-example\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-image content-image alt-block\"><figure class=\"fill block-image alt-block\"><img decoding=\"async\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6174-1-scaled.jpg\" alt=\"Corduroy\/hazard paving is positioned at the top landing of some external steps outside a venue entrance.\"\/><div class=\"alt_block\"><button class=\"alt_trigger\" aria-label=\"Amgen\">Amgen<\/button><div class=\"alt_modal\" id=\"image_block_5841\" role=\"dialog\" aria-label=\"Alt text\" aria-describedby=\"desc_image_block_5841\"><p id=\"desc_image_block_5841\">Corduroy\/hazard paving is positioned at the top landing of some external steps outside a venue entrance.<\/p><button class=\"close\">Cau <span class=\"screen-reader-text\">Amgen<\/span><\/button><\/div><\/div><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-content-blocks border-top\">\n<div class=\"wp-block-ace-intro content-intro\"><p><strong>Disgrifiad o&#8217;r ddelwedd:<\/strong> <span title=\"Lloriau melfar\u00e9d neu berygl\" data-definition-name=\"Corduroy or hazard flooring\" data-definition=\"corduroy-or-hazard-flooring-2\" data-definition-id=\"9582\" class=\"ace-definition-inserter\"><\/span> ar ben grisiau allanol y tu allan i\u00a0fynedfa\u00a0lleoliad.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div id=\"key_considerations\" class=\"wp-block-ace-standard-key-considerations standard-key-considerations standard-content\"><h3>Ystyriaethau allweddol<\/h3>\n<p class=\"wp-block-paragraph\">Mae canllawiau&nbsp;dylunio a mesuriadau&nbsp;allweddol&nbsp;ar gyfer y&nbsp;nodweddion&nbsp;isod&nbsp;yn cael&nbsp;eu manylu&nbsp;yn&nbsp;<span title=\"Dogfen Gymeradwy M (ADM)\" data-definition-name=\"Approved Document M ADM\" data-definition=\"dogfen-gymeradwy-m-adm\" data-definition-id=\"9511\" class=\"ace-definition-inserter\"><\/span>, <span data-definition=\"dogfen-canllawiau-technegol-m-tgd-m\" title=\"Dogfen Canllawiau Technegol M (TGD M)\" data-definition-name=\"Technical Guidance Document M (TGD M)\" data-definition-id=\"9807\" class=\"ace-definition-inserter\"><\/span>,&nbsp;a&nbsp;<span title=\"BS8300\" data-definition-name=\"BS8300\" data-definition=\"bs8300\" data-definition-id=\"8521\" class=\"ace-definition-inserter\"><\/span>.<\/p>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Acwsteg<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Mae arwynebau caled yn adlewyrchu sain, a all greu amgylcheddau swnllyd, llawn atseiniadau. Gall arwynebau amsugnol iawn fygu neu fudo sain. Gall y ddau eithaf greu rhwystr mynediad i wahanol grwpiau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae deunyddiau arwyneb delfrydol yn helpu pobl i synhwyro eu lleoliad o&#8217;i gymharu \u00e2 waliau a nenfydau. Mae hyn yn arbennig o bwysig i bobl \u00e2 nam ar eu golwg, sy&#8217;n aml yn dibynnu ar sain i ddeall gofod. Dylai arwynebau llawr a waliau ddarparu signalau sain clir heb atseinio na mygu. Mae carped a theils carped yn helpu i amsugno sain. Lle nad yw hyn yn ymarferol, ystyriwch orffeniad finyl \u00e2 chefnogaeth amsugnol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gallwch ddod o hyd i argymhellion manylach ar gyfer dylunio acwstig yn <span data-definition=\"bs8233-2\" title=\"BS8233\" data-definition-name=\"BS8233\" data-definition-id=\"9558\" class=\"ace-definition-inserter\"><\/span> ac arfer gorau ychwanegol yn <span data-definition=\"pas6463-2\" title=\"PAS6463\" data-definition-name=\"PAS6463\" data-definition-id=\"9684\" class=\"ace-definition-inserter\"><\/span>.<\/p>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Llawr<\/h4>\n\n\n\n<h5 class=\"wp-block-ace-heading\">Nodweddion cyffredinol<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Gwnewch yn si\u0175r fod cyferbyniad lliw clir rhwng y waliau a&#8217;r lloriau. Osgowch orffeniadau llawr sgleiniog a all ymddangos yn llithrig neu achosi llewyrch. Peidiwch \u00e2 defnyddio patrymau llawr y gellid eu drysu \u00e2 grisiau neu newidiadau mewn lefel, fel streipiau ailadroddus amlwg.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Osgowch doriadau sgleiniog neu gyferbyniol iawn, a all achosi oedi neu ddryswch. Osgowch fatiau a allai achosi &#8216;effaith strob&#8217;, er enghraifft, bandiau bob yn ail o ffibrau a metel. Gwnewch yn si\u0175r fod gan y gorffeniadau <span data-definition=\"gwerth-adlewyrchiad-golau-lrv\" title=\"Gwerth Adlewyrchiad Golau (LRV)\" data-definition-name=\"Light Reflectance Value (LRV)\" data-definition-id=\"9660\" class=\"ace-definition-inserter\"><\/span> tebyg ac nad ydynt yn adlewyrchol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai arwynebau llawr fod yn wrthlithro a darparu troedle cadarn, yn ogystal \u00e2 gafael da ar olwynion. Defnyddiwch ddeunyddiau \u00e2 lefelau tebyg o ymwrthedd i lithro ar draws arwynebau cyfagos. Gwnewch yn si\u0175r fod uniad llyfn lle bynnag y mae dau arwyneb yn cwrdd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gwiriwch fod unrhyw fat yn wastad \u00e2&#8217;r llawr. Os nad yw&#8217;r mat yn wastad, dylai fod ganddo gefn rwber gydag ymylon <span data-definition=\"siamffrog\" data-definition-id=\"9568\" title=\"Siamffrog\" data-definition-name=\"Chamfered\" class=\"ace-definition-inserter\"><\/span>. Mae hyn yn golygu bod ymyl y mat yn gogwyddo i lawr tuag at y llawr.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Er mwyn osgoi llithro, gwnewch yn si\u0175r fod matiau wrth fannau mynediad yn ddigon hir i atal d\u0175r glaw rhag dod i mewn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cofiwch fod carped yn creu rhwystr mynediad i rai pobl sy&#8217;n defnyddio cymhorthion symudedd. Mae hyn oherwydd bod deunydd carped yn creu ffrithiant a gwrthiant. Gwnewch yn si\u0175r fod gan unrhyw garped drwch isel iawn a&#8217;i fod yn caniat\u00e1u rholio llyfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wrth ddewis gorffeniadau newydd, dewiswch loriau a gludyddion ag allyriadau <span data-definition=\"cyfansoddion-organig-anweddol-vocs\" title=\"Cyfansoddion organig anweddol (VOCs)\" data-definition-name=\"Volatile organic compounds (VOCs)\" data-definition-id=\"9810\" class=\"ace-definition-inserter\"><\/span> isel.<\/p>\n\n\n\n<h5 class=\"wp-block-ace-heading\">Toiledau<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai toiledau fod \u00e2 lloriau sy&#8217;n wrthlithro, gan gynnwys pan fyddant yn wlyb. Dylai toiledau gael digon o gyferbyniad lliw rhwng y lloriau a&#8217;r waliau, yn ogystal \u00e2 <span data-definition=\"gosodiadau-a-ffitiadau-toiled\" data-definition-id=\"9513\" title=\"Gosodiadau a ffitiadau toiled\" data-definition-name=\"Toilet fixtures and fittings\" class=\"ace-definition-inserter\"><\/span>.<\/p>\n\n\n\n<h5 class=\"wp-block-ace-heading\">Rampiau<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Mae&#8217;n rhaid i arwynebau rampiau fod yn wrthlithro, hyd yn oed pan fyddant yn wlyb. Dylai fod digon o gyferbyniad lliw yn y mannau glanio ar frig ac ar waelod y ramp. Mae angen rhwystr uchel ar rampiau sydd o leiaf 100mm o ran uchder ar yr ochrau nad ydynt yn fynediad, gyda chyferbyniad lliw hefyd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gweler <a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/symud-o-gwmpas\/llwybrau-mynediad\/\" data-type=\"standard\" data-id=\"4583\">Amgylchedd Adeiledig 3.05 Llwybrau Mynediad<\/a> am ragor o wybodaeth am rampiau.<\/p>\n\n\n\n<h5 class=\"wp-block-ace-heading\">Grisiau a throadau grisiau<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai <span data-definition=\"tu-uchaf-gris\" title=\"Tu uchaf gris\" data-definition-name=\"Stair treads\" data-definition-id=\"9804\" class=\"ace-definition-inserter\"><\/span>a <span data-definition=\"ymyl-flaen\" title=\"Ymyl flaen\" data-definition-name=\"Nosing\" data-definition-id=\"9802\" class=\"ace-definition-inserter\"><\/span> fod yn wrthlithro, gan gynnwys pan fyddant yn wlyb. Ni ddylai&#8217;r trwyn ymwthio allan yn sylweddol. Dylai pob trwyn gael ei wneud o ddeunydd parhaol, cyferbyniol sydd yn 55mm o ran lled o leiaf. Dylid rhoi trwyn grisiau ar y gris (rhan wastad y gris) a&#8217;r <span data-definition=\"riser-2\" title=\"Riser\" data-definition-name=\"Riser\" data-definition-id=\"9817\" class=\"ace-definition-inserter\"><\/span> (rhan fertigol y gris).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gweler <a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/symud-o-gwmpas\/llwybrau-mynediad\/\" data-type=\"standard\" data-id=\"4583\">Amgylchedd Adeiledig 3.05 Llwybrau Mynediad<\/a> am ganllawiau ar risiau.<\/p>\n\n\n\n<h5 class=\"wp-block-ace-heading\">Dulliau adeiladu<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai fod gan y ffyrdd mynediad i adeilad arwynebau llawr cadarn, hirbarhaus ac sy&#8217;n gwrthsefyll llithro. Dylai arwynebau fod yn wastad, nid yn anwastad. Mae&#8217;r <span data-definition=\"dogfen-gymeradwy-m-adm\" data-definition-id=\"9511\" title=\"Dogfen Gymeradwy M (ADM)\" data-definition-name=\"Approved Document M ADM\" class=\"ace-definition-inserter\"><\/span> yn nodi na ddylai tonnau fod yn fwy na 3mm. Ni ystyrir tywod a graean rhydd yn arwynebau hygyrch. Ni ddylai fod unrhyw beryglon baglu nac arwynebau sy&#8217;n rhwystro cadeiriau olwyn mewn neu o amgylch bae parcio hygyrch. Am ragor o wybodaeth am ddulliau adeiladu, cyfeiriwch at <a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/dyfodiadau\/dynesiadau-hygyrch\/\">Amgylchedd Adeiledig 1.04 Dulliau Hygyrch<\/a>.<\/p>\n\n\n\n<h5 class=\"wp-block-ace-heading\">Llawr cyffyrddol<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai grisiau allanol fod \u00e2 <span title=\"Lloriau melfar\u00e9d neu berygl\" data-definition-name=\"Corduroy or hazard flooring\" data-definition=\"corduroy-or-hazard-flooring-2\" data-definition-id=\"9582\" class=\"ace-definition-inserter\"><\/span> ar y glaniadau uchaf ac isaf. Nid oes angen arwyneb rhybuddio am berygl ar risiau mewnol. Fodd bynnag, dylech fod yn ymwybodol o&#8217;r risg bosibl o gael grisiau heb arwyneb rhybuddio am berygl os ydynt yn uniongyrchol yn unol \u00e2 llwybr mynediad.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ni ddylech ddefnyddio lloriau cordyr\u00f3i na lloriau perygl ar ben na gwaelod rampiau. Mae&#8217;r rhain wedi&#8217;u cadw ar gyfer newidiadau uchder mwy sydyn. Gallant achosi perygl baglu neu greu rhwystr i ddefnyddwyr cadeiriau olwyn os c\u00e2nt eu defnyddio ar rampiau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dylid nodi unrhyw bwyntiau croesi heb eu rheoli ar draws llwybrau cerbydau mewn ardaloedd allanol gan ddefnyddio <span data-definition=\"lloriau-pothellog\" data-definition-id=\"9554\" title=\"Lloriau pothellog\" data-definition-name=\"Blister flooring\" class=\"ace-definition-inserter\"><\/span> lliw llwydfelyn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae mathau eraill o <span title=\"Llawr botymog\" data-definition-name=\"Tactile flooring\" data-definition=\"palmant-botymog\" data-definition-id=\"9768\" class=\"ace-definition-inserter\"><\/span> y gallwch eu defnyddio i arwain ymwelwyr. Er enghraifft, mewn oriel, efallai na fydd waliau a marcwyr traddodiadol yn gweithio fel arwyddion cyffyrddol oherwydd arddangosfeydd wedi&#8217;u cau i ffwrdd. Gallai rhwystrau fod yng nghanol yr ystafell fel rhan o&#8217;r arddangosfa. Yn yr achos hwn, gall <span title=\"Arwyneb llwybr canllaw\" data-definition-name=\"Guidance path surface\" data-definition=\"arwyneb-llwybr-canllaw\" data-definition-id=\"9631\" class=\"ace-definition-inserter\"><\/span> helpu. Fel arall, gellir defnyddio math arall o farciwr os yw&#8217;n hawdd ei ddilyn, yn rhesymegol, ac yn gyson, heb beri perygl baglu.<\/p>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Arwynebau wal<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai fod cyferbyniad gweledol clir rhwng waliau a nenfydau, a rhwng waliau a lloriau. Hefyd, gwnewch yn si\u0175r fod cyferbyniad gweledol a gweadol rhwng wyneb y wal a nodweddion fel socedi plygiau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gall waliau patrymog dynnu sylw, yn enwedig pan g\u00e2nt eu lleoli y tu \u00f4l i rywun sy&#8217;n siarad ag ymwelwyr, fel wrth ddesg dderbynfa. Gall sgriniau gwydrog neu arwynebau adlewyrchol ger y ddesg rwystro gwelededd i ddarllenwyr gwefusau a defnyddwyr iaith arwyddion.<\/p>\n<\/div>\n\n\n\n<div id=\"specification_table\" class=\"wp-block-ace-specification-table bg_white specification_table hide\"><h3>Safonol &#8211; manylebau<\/h3><div class=\"bg_grey inner-padding\"><table class=\"specification-table\"><tbody><\/tbody><\/table><\/div><\/div>\n\n\n\n<div id=\"influencing_accessible_practice\" class=\"wp-block-ace-standard-influencing-accessible-practice standard-influencing-accessible-practice standard-content hide\"><h3>Dylanwadu ar arfer hygyrch<\/h3>\n<h4 class=\"wp-block-ace-heading\"><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n\n\n\n<div id=\"definitions_list\" class=\"wp-block-ace-definitions-list bg_white\"><h3>Diffiniadau ac acronymau<\/h3><div class=\"ace-definitions-list bg_grey inner-padding\"><div class=\"ace-definition-item\"><h4>Arwyneb llwybr canllaw<\/h4><div><p>Math o lawr botymog sy&#8217;n llywio pobl ar hyd llwybr trwy le, i gyrchfan, neu o gwmpas rhwystrau. Mae wyneb y llawr wedi&#8217;i weadu \u00e2 bariau uwch. Mae ei liw yn cyferbynnu \u00e2&#8217;r lle o&#8217;i gwmpas.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>BS8233<\/h4><div><p>Mae hyn yn cyfeirio at \u2018BS 8233:2014 Guidance on sound insulation and noise reduction for buildings.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>BS8300<\/h4><div><p>Mae hyn yn cyfeirio at \u201cBS 8300:2018 Dylunio amgylchedd adeiledig hygyrch a chynhwysol\u201d. Mae\u2019n god ymarfer a ddarperir gan y Sefydliad Safonau Prydeinig. Tra bo ADM yn rhan o reoliadau adeiladu, mae BS8300 yn safon arferion gorau.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Cyfansoddion organig anweddol (VOCs)<\/h4><div><p>Gellir canfod Cyfansoddion organig anweddol (VOCs) mewn llawer o ddeunyddiau, gan gynnwys dodrefn, cyflenwadau crefft neu bersawrau. Gall VOCs ryddhau arogleuon yn ogystal \u00e2 llygryddion aer.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Dogfen Canllawiau Technegol M (TGD M)<\/h4><div><p>Yn cyfeirio at \u2018<a href=\"https:\/\/www.gov.ie\/en\/department-of-housing-local-government-and-heritage\/publications\/technical-guidance-document-m-access-and-use\/\">Technical Guidance Document M (Ireland) Access and Use<\/a>\u2019, sy&#8217;n helpu i sicrhau y gall pobl gael mynediad at adeiladau a&#8217;u cyfleusterau.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Dogfen Gymeradwy M (ADM)<\/h4><div><p>Mae hyn yn cyfeirio at \u201cDdogfen Gymeradwy M: Mynediad i adeiladau a\u2019u defnyddio, Cyfrol 2\u201d. Fe\u2019i hadwaenir weithiau fel Rhan M a dyma\u2019r prif reoliad adeiladu yn Lloegr i sicrhau bod pobl yn gallu cael mynediad i adeiladau a\u2019u cyfleusterau a\u2019u defnyddio.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Gosodiadau a ffitiadau toiled<\/h4><div><p><span class=\"NormalTextRun SCXW217146256 BCX0\" data-ccp-charstyle=\"normaltextrun\" data-ccp-charstyle-defn=\"{&quot;ObjectId&quot;:&quot;ac0262f4-8a9e-5820-b908-2d943c5f7113|1&quot;,&quot;ClassId&quot;:1073872969,&quot;Properties&quot;:[201342446,&quot;1&quot;,201342447,&quot;5&quot;,201342448,&quot;1&quot;,201342449,&quot;1&quot;,469777841,&quot;Aptos&quot;,469777842,&quot;Arial&quot;,469777843,&quot;Aptos&quot;,469777844,&quot;Aptos&quot;,201341986,&quot;1&quot;,469769226,&quot;Aptos,Arial&quot;,268442635,&quot;22&quot;,469775450,&quot;normaltextrun&quot;,201340122,&quot;1&quot;,134233614,&quot;true&quot;,469778129,&quot;normaltextrun&quot;,335572020,&quot;1&quot;,469778324,&quot;Default Paragraph Font&quot;]}\">Mae hyn yn cyfeirio at holl elfennau gwahanol uned toiled hygyrch gan gynnwys (ond heb fod yn gyfyngedig i) y toiled ei hun, sinc, sychwr dwylo, peiriant sebon, daliwr papur toiled,<\/span><span class=\"NormalTextRun SCXW217146256 BCX0\" data-ccp-charstyle=\"normaltextrun\">canllawiau, <\/span><span class=\"NormalTextRun SCXW217146256 BCX0\" data-ccp-charstyle=\"normaltextrun\">mecanwaith cloi drws, byrddau newid babanod, drychau a mwy.\u00a0<\/span><\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Gwerth Adlewyrchiad Golau (LRV)<\/h4><div><p>Mesuriad o faint o olau gweledol y mae arwyneb yn ei adlewyrchu yw Gwerth Adlewyrchiad Golau (LRV). Fe&#8217;i mynegir fel canran o 0% (cwbl ddu, yn amsugno&#8217;r holl olau) i 100% (cwbl wyn, yn adlewyrchu&#8217;r holl olau).<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Llawr botymog<\/h4><div><p>Palmant neu lawr sydd wedi&#8217;i weadu gyda botymau neu wrymiau i helpu pobl ddall neu bobl ag amhariad ar y golwg i lywio lleoliad. Mae gweadeddau penodol yn dynodi peryglon neu gyfarwyddiadau penodol, fel rhybudd am risiau neu&#8217;n dynodi llwybr i&#8217;w ddilyn.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Lloriau melfar\u00e9d neu berygl<\/h4><div><p>Math o lawr botymog \u00e2 stribedi uwch a ddefnyddir cyn grisiau fel rheol (ac yn yr amgylchedd awyr agored, croesfannau rheilffordd a phethau tebyg). Mae&#8217;r stribedi uwch yn golygu: \u2018perygl, parhewch gyda gofal\u2019.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Lloriau pothellog<\/h4><div><p>Math o lawr botymog \u00e2 dotiau uwch neu \u2018bothelli\u2019, a ddefnyddir gan bobl ddall neu ag amhariad ar eu golwg i symud o gwmpas.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>PAS6463<\/h4><div><p>Mae hyn yn cyfeirio at \u2018PAS 6463:2022 Design for the Mind \u2013 Neurodiversity and the built environment\u2019. Cod ymarfer ar gyfer adeiladau wedi&#8217;i ddarparu gan y Sefydliad Safonau Prydeinig yw hwn. Tra bod ADM yn rhan o reoliadau adeiladu, mae PAS6463 yn safon o arfer gorau.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Riser<\/h4><div><p>Tu blaen gris neu risiau yw&#8217;r arwyneb fertigol. Cyfeiriwch at Ddiagram 1.1 o <a href=\"https:\/\/assets.publishing.service.gov.uk\/media\/60d5bdcde90e07716f516cfd\/Approved_Document_K.pdf\">Dogfen Gymeradwy K<\/a> am gyfeiriad gweledol. Gelwir uchder tu blaen gris yr esgyniad.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Siamffrog<\/h4><div><p>Ymylon ar ogwydd sy&#8217;n creu asiad llyfn, er enghraifft rhwng mat a&#8217;r llawr.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Tu uchaf gris<\/h4><div><p>Tu uchaf gris, sydd hefyd yn cael ei alw&#8217;n \u2018sangfa\u2019 gris, yw arwynebau llorweddol gwastad grisiau lle rhoddir y droed wrth gerdded i fyny neu i lawr grisiau. Gweler Diagram 1.1 <a href=\"https:\/\/assets.publishing.service.gov.uk\/media\/60d5bdcde90e07716f516cfd\/Approved_Document_K.pdf\">Approved Document K<\/a> i gael cyfeiriad gweledol.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Ymyl flaen<\/h4><div><p>Ymyl flaen y gris a&#8217;r wyneb yw hwn. Gweler Diagram 1.1 <a href=\"https:\/\/assets.publishing.service.gov.uk\/media\/60d5bdcde90e07716f516cfd\/Approved_Document_K.pdf\">Dogfen Gymeradwy K<\/a> i gael cyfeiriad gweledol. Gall \u2018ymyl flaen\u2019 hefyd gyfeirio at stribedi o ddeunydd a ychwanegir at ymyl y gris, i&#8217;w wneud yn wrthlithro ac yn gyferbyniad uchel.<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<div id=\"learning_resources\" class=\"wp-block-ace-standard-learning-resources standard-content\"><h3>Adnoddau dysgu<\/h3><div class=\"links-on-newtab-text\"><\/div>\n<h4 class=\"wp-block-ace-heading\">Lloegr<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/assets.publishing.service.gov.uk\/media\/66f6c5eec71e42688b65ee11\/ADM__V2_with_2024_amendments.pdf\">Approved Document M (ADM) (Dolen allanol yn Saesneg)<\/a>\u202f\n<ul class=\"wp-block-list\">\n<li>Tudalennau 16-22 (adrannau 1.9, 1.13, 1.15, 1.18, 1.26 and 1.33)<\/li>\n\n\n\n<li>Tudalen 29 (adrannau 3.4 a 3.6)<\/li>\n\n\n\n<li>Tudalennau 31-32 (adran 3.14)<\/li>\n\n\n\n<li>Tudalennau 33-34 (adran 3.32)<\/li>\n\n\n\n<li>Tudalen 35 (adran 3.42)<\/li>\n\n\n\n<li>Tudalen 45 (nodyn adran 4.32 a 4.35)<\/li>\n\n\n\n<li>Tudalennau 55-57 (adran 5.18)<\/li>\n\n\n\n<li>Tudalennau 58-59 (adran 5.21)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Cymru<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.gov.wales\/sites\/default\/files\/publications\/2019-05\/building-regulations-guidance-part-m-access-to-and-use-of-buildings.pdf\">Approved Document M (ADM) Wales (Dolen allanol yn Saesneg)<\/a>\u202f\n<ul class=\"wp-block-list\">\n<li>Tudalen 24, Adran 1.9<\/li>\n\n\n\n<li>Tudalen 25, Adran 1.13<\/li>\n\n\n\n<li>Tudalen 35-36, Adran 2.7<\/li>\n\n\n\n<li>Tudalen 40, Adran 2.29<\/li>\n\n\n\n<li>Tudalen 42, Adran 3.4<\/li>\n\n\n\n<li>Tudalen 44, Adran 3.12<\/li>\n\n\n\n<li>Tudalen 45, Adran 3.14<\/li>\n\n\n\n<li>Tudalen 64,Adran 5.4<\/li>\n\n\n\n<li>Tudalen 71-2, Adran 5.18<\/li>\n\n\n\n<li>Tudalen 74, Adran 5.21<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Yr Alban<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.gov.scot\/binaries\/content\/documents\/govscot\/publications\/advice-and-guidance\/2024\/11\/building-standards-technical-handbook-january-2025-non-domestic\/documents\/building-standards-technical-handbook-january-2025-non-domestic\/building-standards-technical-handbook-january-2025-non-domestic\/govscot%3Adocument\/Building%2BStandards%2B-%2BCore%2BDocuments%2B-%2BNon-domestic%2BTechnical%2BHandbook%2B-%2BJanuary%2B2025%2B-%2BFor%2BPublication.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Non-Domestic Technical Handbook (Scotland) (Dolen allanol yn Saesneg)<\/a><strong>\u202f<\/strong>\n<ul class=\"wp-block-list\">\n<li>Tudalen 289, Adran 3.12.6<\/li>\n\n\n\n<li>Tudalen 376, Adran 4.1.4<\/li>\n\n\n\n<li>Tudalen 377, Adran 4.1.7<\/li>\n\n\n\n<li>Tudalen 382, Adran 4.2.3<\/li>\n\n\n\n<li>Tudalen 392-393, Adran 4.3.7<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Gogledd Iwerddon<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.buildingcontrol-ni.com\/assets\/pdf\/TechnicalBookletR2012.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Technical Booklet R (Northern Ireland) (Dolen allanol yn Saesneg)<\/a><strong>\u202f<\/strong>\n<ul class=\"wp-block-list\">\n<li>Tudalen 16, Adran 2.1<\/li>\n\n\n\n<li>Tudalen 17-18, Adran 2.9-2.12<\/li>\n\n\n\n<li>Tudalen 21, Adran 3.7<\/li>\n\n\n\n<li>Tudalen 27, Adran 4.6<\/li>\n\n\n\n<li>Tudalen 32, Adran 4.32-4.33<\/li>\n\n\n\n<li>Tudalen 44, Adran 5.37<\/li>\n\n\n\n<li>Tudalen 59, Adran 6.33<\/li>\n\n\n\n<li>Tudalen 62, Adran 6.34<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Iwerddon<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.gov.ie\/en\/department-of-housing-local-government-and-heritage\/publications\/technical-guidance-document-m-access-and-use\/\" target=\"_blank\" rel=\"noreferrer noopener\">Technical Guidance Document M (TGD M) 2022 (Dolen allanol yn Saesneg)<\/a>\u00a0\n<ul class=\"wp-block-list\">\n<li>Tudalen 32, Adran 1.1.3.4, sefyll i fyny cyferbyniol ar rampiau<\/li>\n\n\n\n<li>Tudalen 35, Adran 1.1.3.5, arwyneb rhybuddio cyffyrddol cordyr\u00f4i<\/li>\n\n\n\n<li>Tudalen 57-58, Adran 1.2.5, newidiadau lloriau a matiau mynediad<\/li>\n\n\n\n<li>Tudalen 62, Adran 1.3.3.1, patrwm \u00a0<\/li>\n\n\n\n<li>Tudalen 85, Adran 14.4, lloriau cadarn, gwastad, gwrthlithro\u00a0<\/li>\n\n\n\n<li>Tudalen 128, Adran 1.6.4 LRVs a chyferbyniad gweledol<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Rhagor o adnoddau<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.gov.wales\/sites\/default\/files\/publications\/2019-05\/building-regulations-guidance-part-m-access-to-and-use-of-buildings.pdf\">BS8300 \u2013 Part 2 (Dolen allanol yn Saesneg)<\/a> \u202f(Gellir prynu safonau BSI ar-lein. Mae cop\u00efau cyfeirio ar gael mewn llyfrgelloedd lleol)\n<ul class=\"wp-block-list\">\n<li>Tudalennau 52-54, Adrannau 11.1-11.5<\/li>\n\n\n\n<li>Tudalen 98, Adran 18.1.7<\/li>\n\n\n\n<li>Tudalen 144, Adran 19.1.12<\/li>\n\n\n\n<li>Tudalen 168, Adran 20.10.5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/knowledge.bsigroup.com\/products\/guidance-on-sound-insulation-and-noise-reduction-for-buildings\" target=\"_blank\" rel=\"noreferrer noopener\">BS8233:2014 Canllawiau ar inswleiddio sain a lleihau s\u0175n ar gyfer adeiladau (Dolen allanol yn Saesneg)<\/a>\u00a0<\/li>\n\n\n\n<li><a href=\"https:\/\/assets.publishing.service.gov.uk\/media\/61df0c91e90e07037794fe90\/guidance-on-the-use-of-tactile-paving-surfaces.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Department for Transport \u2013 Guidance on tactile paving surfaces (Dolen allanol yn Saesneg)<\/a>\u00a0<\/li>\n\n\n\n<li><a href=\"https:\/\/www.bsigroup.com\/en-IE\/insights-and-media\/insights\/brochures\/pas-6463-design-for-the-mind-neurodiversity-and-the-built-environment\/\">PAS 6463:2022 Dylunio ar gyfer y Meddwl<\/a>\n<ul class=\"wp-block-list\">\n<li>Tudalen 20, Adran 5.4, effaith strob<\/li>\n\n\n\n<li>Tudalen 47, Adran 9.1 Ansawdd aer, VOCau\u00a0<\/li>\n\n\n\n<li>Tudalen 77, Adran 12.6.1, trimiau pontio<\/li>\n\n\n\n<li>Tudalen 81, Adran 12.6.6 Amsugno acwstig<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div id=\"skills_development\" class=\"wp-block-ace-standard-skills-development standard-skills-development standard-content hide\"><h3>Datblygu cymorth a sgiliau<\/h3>\n<h4 class=\"wp-block-ace-heading\"><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n\n\n\t<div id=\"linked_standards\" class=\"wp-block page-links wp-block-ace-linked-standards \">\n\t\t\t<h3 class=\"block-title\">\n\t\t\t\tSafonau cysylltiedig\t\t\t<\/h3>\n\t\t\t\t\t\t<div class='flex flex_50 link_blocks'>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"flex_item post_item bg_grey--dark\">\n\t\t\t\t\t\t\t<picture class=\"featured-img alt-block\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6091-1024x683.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"Grisiau sydd \u00e2 chyferbyniad lliw, codiadau cae\u00ebdig solet, canllawiau ar y ddwy ochr a glaniadau gwastad ar y brig a&#039;r gwaelod.\" srcset=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6091-1024x683.jpg 1024w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6091-300x200.jpg 300w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6091-768x512.jpg 768w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6091-1536x1024.jpg 1536w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6091-2048x1365.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<div class = \"alt_block\">\n\t\t\t\t\t\t\t\t\t<button class=\"alt_trigger\" aria-label=\"Open the Image Description\">Amgen<\/button>\n\t\t\t\t\t\t\t\t\t<div class=\"alt_modal\" id=\"6142\" role=\"dialog\" aria-label=\"Image Description\" aria-describedby=\"desc_9990\">\n\t\t\t\t\t\t\t\t\t\t<p id=\"desc_9990\">Grisiau sydd \u00e2 chyferbyniad lliw, codiadau cae\u00ebdig solet, canllawiau ar y ddwy ochr a glaniadau gwastad ar y brig a&#8217;r gwaelod.<\/p>\n\t\t\t\t\t\t\t\t\t\t<button class=\"close\">Cau <span class=\"screen-reader-text\">Disgrifiad Delwedd\n<\/span><\/button>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/picture>\n\t\t\t\t\t\t\t<div class=\"linked_standard--content inner-padding card\">\n\t\t\t\t\t\t\t\t<h4>3.05 Llwybrau Mynediad<\/h4>\n\t\t\t\t\t\t\t\t<p>Gwnewch yn si\u0175r y gall pobl symud o gwmpas eich adeilad drwy leihau rhwystrau a darparu lifftiau a rampiau. Dilynwch y canllawiau i gynnig grisiau a chanllawiau hygyrch. <a href=\"\/login\" class=\"locked card_target\"><span aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"14.999\" height=\"18\" viewBox=\"0 0 14.999 18\">\n  <path id=\"unlock\" d=\"M13.507,7.5H3.75V5.249A3.741,3.741,0,0,1,11.022,4l1.133-1.133a5.234,5.234,0,0,0-9.9,2.378V7.5H1.493A1.5,1.5,0,0,0,0,9V16.5A1.5,1.5,0,0,0,1.493,18H13.507A1.5,1.5,0,0,0,15,16.5V9a1.5,1.5,0,0,0-1.492-1.5\" transform=\"translate(0)\" fill=\"#472961\" fill-rule=\"evenodd\"\/>\n<\/svg><br \/>\n<\/span>This content is only available to logged in users.<\/a><\/p>\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"31.832\" height=\"24\" viewBox=\"0 0 31.832 24\">\n  <path id=\"arrow\" d=\"M33.728,24.848l-10.2-10.2a1.773,1.773,0,1,0-2.508,2.508l7.189,7.189H4.272a1.772,1.772,0,0,0,0,3.545H28.178L21.022,35.08a1.755,1.755,0,0,0,0,2.508,1.827,1.827,0,0,0,1.271.536,1.747,1.747,0,0,0,1.271-.536L33.8,27.355a1.827,1.827,0,0,0,.536-1.271,2.283,2.283,0,0,0-.6-1.237Z\" transform=\"translate(-2.499 -14.123)\" fill=\"#472961\"\/>\n<\/svg>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"flex_item post_item bg_grey--dark\">\n\t\t\t\t\t\t\t<picture class=\"featured-img alt-block\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6102-1024x683.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"Ffordd ar oleddf ysgafn at fynedfa sinema \u00e2 chanllawiau a seddi.\" srcset=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6102-1024x683.jpg 1024w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6102-300x200.jpg 300w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6102-768x512.jpg 768w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6102-1536x1024.jpg 1536w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6102-2048x1365.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<div class = \"alt_block\">\n\t\t\t\t\t\t\t\t\t<button class=\"alt_trigger\" aria-label=\"Open the Image Description\">Amgen<\/button>\n\t\t\t\t\t\t\t\t\t<div class=\"alt_modal\" id=\"5400\" role=\"dialog\" aria-label=\"Image Description\" aria-describedby=\"desc_10000\">\n\t\t\t\t\t\t\t\t\t\t<p id=\"desc_10000\">Ffordd ar oleddf ysgafn at fynedfa sinema \u00e2 chanllawiau a seddi.<\/p>\n\t\t\t\t\t\t\t\t\t\t<button class=\"close\">Cau <span class=\"screen-reader-text\">Disgrifiad Delwedd\n<\/span><\/button>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/picture>\n\t\t\t\t\t\t\t<div class=\"linked_standard--content inner-padding card\">\n\t\t\t\t\t\t\t\t<h4>1.04 Dynesiadau Hygyrch<\/h4>\n\t\t\t\t\t\t\t\t<p>Wrth i chi gyrraedd, gwnewch yn si\u0175r fod y fynedfa\u2019n hawdd dod o hyd iddi, wedi\u2019i goleuo\u2019n dda a\u2019i bod wedi\u2019i hamddiffyn rhag y tywydd. Dylai llwybrau fod yn llydan, yn wastad, yn wrthlithro a bod \u00e2 phalmant cyffyrddol lle bo angen.<a href=\"\/login\" class=\"locked card_target\"><span aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"14.999\" height=\"18\" viewBox=\"0 0 14.999 18\">\n  <path id=\"unlock\" d=\"M13.507,7.5H3.75V5.249A3.741,3.741,0,0,1,11.022,4l1.133-1.133a5.234,5.234,0,0,0-9.9,2.378V7.5H1.493A1.5,1.5,0,0,0,0,9V16.5A1.5,1.5,0,0,0,1.493,18H13.507A1.5,1.5,0,0,0,15,16.5V9a1.5,1.5,0,0,0-1.492-1.5\" transform=\"translate(0)\" fill=\"#472961\" fill-rule=\"evenodd\"\/>\n<\/svg><br \/>\n<\/span>This content is only available to logged in users.<\/a><\/p>\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"31.832\" height=\"24\" viewBox=\"0 0 31.832 24\">\n  <path id=\"arrow\" d=\"M33.728,24.848l-10.2-10.2a1.773,1.773,0,1,0-2.508,2.508l7.189,7.189H4.272a1.772,1.772,0,0,0,0,3.545H28.178L21.022,35.08a1.755,1.755,0,0,0,0,2.508,1.827,1.827,0,0,0,1.271.536,1.747,1.747,0,0,0,1.271-.536L33.8,27.355a1.827,1.827,0,0,0,.536-1.271,2.283,2.283,0,0,0-.6-1.237Z\" transform=\"translate(-2.499 -14.123)\" fill=\"#472961\"\/>\n<\/svg>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\n\n\t<div id=\"references\" class=\"wp_block references wp-block-ace-standard-references \">\n\t\t<h3 class=\"block-title\">\n\t\t\tCyfeiriadau allanol\t\t<\/h3>\n\n\t\t<div class=\"links-on-newtab-text\"><\/div>\n\t\t<ol class=\"references-list\">\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p><span class=\"TextRun SCXW240679425 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW240679425 BCX0\">Access to and use of buildings, Approved <\/span><span class=\"NormalTextRun SCXW240679425 BCX0\">Document M <\/span><\/span><span class=\"TextRun SCXW240679425 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW240679425 BCX0\">(2004 edition, incorporating 2010 amendments) [online] Available at: <\/span><\/span><a class=\"Hyperlink SCXW240679425 BCX0\" href=\"https:\/\/www.gov.wales\/sites\/default\/files\/publications\/2019-05\/building-regulations-guidance-part-m-access-to-and-use-of-buildings.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"TextRun Underlined SCXW240679425 BCX0\" lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW240679425 BCX0\" data-ccp-charstyle=\"Hyperlink\">Approved Document M (Wales)<\/span><\/span><\/a><span class=\"TextRun SCXW240679425 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW240679425 BCX0\"> [Accessed 24 June 2025]<\/span><\/span><span class=\"EOP SCXW240679425 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559740&quot;:360}\">\u00a0<\/span><\/p>\n<\/li>\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p><span class=\"TextRun SCXW89917099 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW89917099 BCX0\">Access to and use of buildings, Approved Document M, Volume 2, Buildings other than dwellings (<\/span><\/span><span class=\"TextRun SCXW89917099 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW89917099 BCX0\">2015 edition, incorporating 2020 and 2024 amendments). Available at: <\/span><\/span><a class=\"Hyperlink SCXW89917099 BCX0\" href=\"https:\/\/assets.publishing.service.gov.uk\/media\/66f6c5eec71e42688b65ee11\/ADM__V2_with_2024_amendments.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"TextRun Underlined SCXW89917099 BCX0\" lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW89917099 BCX0\" data-ccp-charstyle=\"Hyperlink\">Approved Document Part M<\/span><\/span><\/a><span class=\"TextRun SCXW89917099 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW89917099 BCX0\"> [Accessed 24 June 2025]<\/span><\/span><\/p>\n<\/li>\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p>British Standards Institute, BS-8233:2014 Guidance on sound insulation and noise reduction for buildings (2018) [Accessed 24 June 2025]<\/p>\n<\/li>\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p><span class=\"TextRun SCXW131644791 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW131644791 BCX0\">British Standards Institute, <\/span><\/span><span class=\"TextRun SCXW131644791 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW131644791 BCX0\">BS8300-2:2018, Design of an accessible and inclusive built environment, Part 2: Buildings \u2013 Code of practice<\/span><\/span><span class=\"TextRun SCXW131644791 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW131644791 BCX0\"> (2018). <\/span><\/span><span class=\"TextRun SCXW131644791 BCX0\" lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW131644791 BCX0\">BSI standards can be purchased online. Reference copies are availabl<\/span><span class=\"NormalTextRun SCXW131644791 BCX0\">e a<\/span><span class=\"NormalTextRun SCXW131644791 BCX0\">t local libraries.<\/span><\/span><span class=\"EOP SCXW131644791 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559740&quot;:360}\">\u00a0<\/span><\/p>\n<\/li>\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p><span class=\"TextRun SCXW209199491 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW209199491 BCX0\">Building Regulations (Northern Ireland) Technical Booklet R Access to and Use of Buildings<\/span><\/span><span class=\"TextRun SCXW209199491 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW209199491 BCX0\"> (2012) [online] Available at: <\/span><\/span><a class=\"Hyperlink SCXW209199491 BCX0\" href=\"https:\/\/www.buildingcontrol-ni.com\/assets\/pdf\/TechnicalBookletR2012.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"TextRun Underlined SCXW209199491 BCX0\" lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW209199491 BCX0\" data-ccp-charstyle=\"Hyperlink\">Technical Booklet R (Northern Ireland)<\/span><\/span><\/a><span class=\"TextRun SCXW209199491 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW209199491 BCX0\"> [Accessed 24 June 2025]<\/span><\/span><span class=\"EOP SCXW209199491 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559740&quot;:360}\">\u00a0<\/span><\/p>\n<\/li>\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p>Department for Transport, Guidance on the use of tactile paving surfaces (2022). Available at: <a href=\"https:\/\/assets.publishing.service.gov.uk\/media\/61df0c91e90e07037794fe90\/guidance-on-the-use-of-tactile-paving-surfaces.pdf\">DfT Guidance<\/a> [Accessed 17th June 2025]<\/p>\n<\/li>\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p><span class=\"TextRun SCXW1082671 BCX0\" lang=\"EN-GB\" xml_lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW1082671 BCX0\">Non-Domestic Technical Handbook <\/span><\/span><span class=\"TextRun SCXW1082671 BCX0\" lang=\"EN-GB\" xml_lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW1082671 BCX0\">(January 2024 edition) [online] Available at: <\/span><\/span><a class=\"Hyperlink SCXW1082671 BCX0\" href=\"https:\/\/www.gov.scot\/binaries\/content\/documents\/govscot\/publications\/advice-and-guidance\/2024\/11\/building-standards-technical-handbook-january-2025-non-domestic\/documents\/building-standards-technical-handbook-january-2025-non-domestic\/building-standards-technical-handbook-january-2025-non-domestic\/govscot%3Adocument\/Building%2BStandards%2B-%2BCore%2BDocuments%2B-%2BNon-domestic%2BTechnical%2BHandbook%2B-%2BJanuary%2B2025%2B-%2BFor%2BPublication.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"TextRun Underlined SCXW1082671 BCX0\" lang=\"EN-GB\" xml_lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW1082671 BCX0\" data-ccp-charstyle=\"Hyperlink\">Non-Domestic Technical Handbook (Scotland)<\/span><\/span><\/a><span class=\"TextRun SCXW1082671 BCX0\" lang=\"EN-GB\" xml_lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW1082671 BCX0\"> [Accessed 24 June 2025]\u00a0<\/span><\/span><\/p>\n<\/li>\n\t\t\t\t\t<\/ol>\n\t<\/div> \n<\/div><aside class=\"sidebar flex-item\"><h3>3.02 Arwynebau Lloriau a Waliau<\/h3><nav class=\"sub-nav\"><ul><li><a href=\"#overview\">Trosolwg<\/a><\/li><li><a href=\"#examples\">Enghreifftiau ymarferol<\/a><\/li><li><a href=\"#key_considerations\">Ystyriaethau allweddol<\/a><\/li><li><a href=\"#definitions_list\">Diffiniadau ac acronymau<\/a><\/li><li><a href=\"#learning_resources\">Adnoddau dysgu<\/a><\/li><li><a href=\"#linked_standards\">Safonau cysylltiedig<\/a><\/li><li><a href=\"#references\">Cyfeiriadau allanol<\/a><\/li><\/ul><\/nav><div class=\"hide fixed scroll_menu\" aria-live=\"polite\"><h3>3.02 Arwynebau Lloriau a Waliau<\/h3><ul><li><a href=\"#overview\">Trosolwg<\/a><\/li><li><a href=\"#examples\">Enghreifftiau ymarferol<\/a><\/li><li><a href=\"#key_considerations\">Ystyriaethau allweddol<\/a><\/li><li><a href=\"#definitions_list\">Diffiniadau ac acronymau<\/a><\/li><li><a href=\"#learning_resources\">Adnoddau dysgu<\/a><\/li><li><a href=\"#linked_standards\">Safonau cysylltiedig<\/a><\/li><li><a href=\"#references\">Cyfeiriadau allanol<\/a><\/li><\/ul><a href=\"https:\/\/form.jotform.com\/252393341563356?standard=Amgylchedd Adeiledig 3.02 Arwynebau Lloriau a Waliau\" class=\"feedback_link button bg_secondary white\">Rhowch adborth i ni ar y Safon hon<\/a><a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/\" class=\"return_link\">Yn \u00f4l i Amgylchedd Adeiledig<\/a><\/div><a href=\"https:\/\/form.jotform.com\/252393341563356?standard=Amgylchedd Adeiledig 3.02 Arwynebau Lloriau a Waliau\" class=\"feedback_link button bg_secondary white\">Rhowch adborth i ni ar y Safon hon<\/a><a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/\" class=\"return_link\">Yn \u00f4l i Amgylchedd Adeiledig<\/a><\/aside><\/div>\n","protected":false},"featured_media":5824,"parent":9991,"menu_order":2,"template":"","class_list":["post-10106","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":{"short_description":"Gwnewch yn si\u0175r fod dyluniad y llawr a'r waliau'n galluogi ymwelwyr i symud yn gyfforddus ac yn hawdd o gwmpas y gofod. Darparwch lwybrau ac arwynebau waliau clir, wedi'u diffinio'n dda gyda marciau penodol.","make_visible_to_taster_account":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Arwynebau Lloriau a Waliau - All In<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/symud-o-gwmpas\/arwynebau-lloriau-a-waliau\/\" \/>\n<meta property=\"og:locale\" content=\"cy_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arwynebau Lloriau a Waliau - All In\" \/>\n<meta property=\"og:url\" content=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/symud-o-gwmpas\/arwynebau-lloriau-a-waliau\/\" \/>\n<meta property=\"og:site_name\" content=\"All In\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-14T14:11:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-148-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/allin.online\\\/cy\\\/standard\\\/amgylchedd-adeiledig\\\/symud-o-gwmpas\\\/arwynebau-lloriau-a-waliau\\\/\",\"url\":\"https:\\\/\\\/allin.online\\\/cy\\\/standard\\\/amgylchedd-adeiledig\\\/symud-o-gwmpas\\\/arwynebau-lloriau-a-waliau\\\/\",\"name\":\"Arwynebau Lloriau a Waliau - 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