Insulation is material designed to prevent heat from being transmitted from one area to another. It’s normally used to keep heat in or out of your home. Insulation can work in a number of different ways, but it most commonly incorporates materials that consist of millions of tiny pockets of air. Still air is an extremely good insulator, and trapped …

If you live near the coast, your roof will be affected by corrosion caused by the sea air. Fine particles of sea salt, usually formed by the evaporation of sea spray, creates a salt haze – and it is this haze which corrodes your roofing screws, causing them to weaken. Once this happens their performance is greatly affected over their …