MSA Arrowbase is non-porous, 28lb. base sheets, uniquely designed and constructed to be simultaneously strong and wrinkle resistant. It has a unique combination of strength and suppleness that is achieved by coating a heavyweight fiberglass mat with type IV asphalt. The asphalt coating helps maintain a uniform consistency on both sides of the sheet and eliminates pinholes. The MSA Arrowbase is used as the base ply in a wide variety of hot, cold and torch-applied built-up and modified bitumen roofing applications. The suppleness and extreme pliability of Arrowbase makes it a good alternative for organic base where a decay resistant inorganic mat is desired. Arrowbase covers 3 squares per roll. This product is sold by the pallet of 20 rolls.

RoofingDirect.com offers an excellent selection of asphalt saturated underlayments to seal and protect the roof of your next job. Our team has decades of industry experience and is ready to serve you. Please contact us, and we will be happy to answer any questions.