Description
Roll out mats of roofing material, often bituminous asphalt, to cover flat or low-pitched roofs. Apply the felt layer first if required. Make sure there are no gaps so the roof is weatherproof. Firmly attach the layer to the structure.
Roll out mats of roofing material, often bituminous asphalt, to cover flat or low-pitched roofs. Apply the felt layer first if required. Make sure there are no gaps so the roof is weatherproof. Firmly attach the layer to the structure.