Purpose Of Felt On Roof

It provides a barrier between the wood sheathing on the roof and the final roofing material.

Purpose of felt on roof.

Roofing felt protects the roof which means it ultimately protects your home. Felt otherwise known as underpayment is required when. Sometimes called roofing felt underlayment roofing tar paper or roll roofing this is a layer of protection installed between the roof deck and the roofing shingles. Conversely felt underlayment is appropriate in conjunction with ice dam protection at eaves and other critical transitions in cold climates.

Roof felt products are sold in rolls. Well the original purpose for using roofing felt was to be a temporary waterproof roof whilst homeowners would have to build their own roofs. Commonly referred to as felt paper or tar paper common roofing felt is made of varying blends of cellulose natural plant fibers polyester bitumen or asphalt. That s when synthetic products started gaining in popularity.

There are many reasons to use roofing felt. Should water or snow be driven between shingles by high winds this under layer will provide valuable protection. Architectural metal roofs with felt underlayment are best suited for buildings with proper slope and low moisture loads in dry or arid climates. Asphalt saturated felt was the go to roofing underlayment until about 15 years ago.

A layer of gravel or small stones is applied on top of the final coating of asphalt to protect the roof from the elements including ultraviolet uv rays and hail. When homeowners would remove the shingles off their roof on a weekend the roofing felt would serve as a waterproof cover. The outer surface of the roof felt is like a sandpaper or carpet like surface. Item 656632 model 0903000.

This method has been used for over one hundred years. In fact roofing felt is known to repel water which means that your home becomes incredibly leak proof preventing moisture related damage like rot and mould from occurring as a result. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. Roofing felt is a layer of tar paper installed beneath the shingles to provide a backup waterproof membrane in case of leakage.

In addition to this it has been proven that roofing felt can actually prolong the life of your roof and help it endure the brutality of mother nature.