We propose to make changes to Part B of the Building Regulations and to set out the required technical standards in a revision to Building Regulations Approved Document Part B Volumes 1 and 2.
Fel rheol, byddai angen cymeradwyaeth rheoliadau adeiladu i wneud newidiadau sylweddol i elfennau thermol, a byddai angen i ddeunydd inswleiddio thermol yr elfen gael ei uwchraddio i safon resymol.