How does Marmox compare to plasterboard?
It doesnt there really is no comparison. Standard plasterboard offers approximately 1/6th the U value of an equal thickness of Marmox and yet is approximately 7 times heavier. When used in wet areas, such as bathrooms or showers, Marmox is totally waterproof whereas plasterboard will absorb water unless it is of the waterproof variety which will cost considerably more. Compare a few characteristics of Marmox against plasterboard Marmox is 1/7th the weight of Plasterboard Marmox is waterproof, ordinary plasterboard is not. Marmox (10mm) has a U value of 2.7 against 12.8 W/M2 K of 12.5mm Plasterboard (the lower the U value, the better the insulation).
