The space protection shapes a boundary against the hot air that ascent to the rooftop from the lower floors of the house. We as a whole realize that hot air will rise, and on the off chance that you don't square it, it can without much of a stretch departure from the rooftop. The air pockets in the warm obstruction assimilate hot air and keep it from being lost to the environment. Builders merchant Crawleyprescribed to use in any event 270 mm thick protection material in the storage room everything being equal. A minimal measure of warmth is lost at this level. As a rule, the protecting material comprises of mineral fleece or common fleece.