RHAN 1Rheoliadau Adeiladu 2010
Atodlen 4 i'r Rheoliadau Adeiladu — Disgrifiadau o'r gwaith pan na fo'n ofynnol rhoi hysbysiad adeiladu nac adneuo planiau llawn28
Yn Atodlen 4, ar ôl paragraff 3 mewnosoder—
3A
Installation of thermal insulation to suspended timber floors where the work—
a
consists of the installation of such insulation only; and
b
the work is not carried out in order to comply with any requirements of these Regulations.