Mae'r ACM â system insiwleiddio gwlân mwynol yn debyg i'r cyfuniad ar y tri adeilad y mae Cartrefi Dinas Casnewydd (NCH) yn berchen arnynt. Rhain oedd yr unig samplau (sy'n berthnasol i'r profion hyn) y cadarnhawyd iddynt gael eu hanfon o adeiladau yng Nghymru.
The ACM with mineral wool insulation system is similar to the combination in place on the 3 buildings owned by Newport City Homes (NCH). These were the only samples (relative to these tests) confirmed to have been sent from Welsh properties.