Extruded polystyrene (XPS) insulation is a rigid foam insulation commonly used in the construction industry to improve building energy efficiency. It is made of polystyrene resin and other additives ...

The main insulation products on the market in New Zealand are wool, polystyrene, glass wool and polyester. Photo: 123RF / Not-For-Syndication Winter is always the time I get asked a million and one ...

Q In our 1908 Victorian semi, we have a small, well-ventilated cellar, upon which I’d like to effect a DIY renovation. The render on the walls is in poor repair: flaking, falling off in chunks and ...