Old Roof Felt

Metre felt roof with fibre glass.

Old roof felt.

The home we re buying has two layers of composition shingles and the seller assures us that the new layer is only 1 year old. For more than 25 years organizations such as the national roofing contractors association nrca and the canadian asphalt shingle manufacturer s association casma have included roofing felt in their roofing and waterproofing recommendations. 4 or 5 years ago it cost us 6k ish for a 13 x 4 m 52 sq m flat roof in fibre glass. Sources for old roofing products photo by courtesy of anr roofing.

In the good old days it was often doubled up to help resist ice dams now delt with by ice and water shield. The existing house has a metal tile roof with a stamped pattern. Felt roofing underlayment is typically available in two types. Roofing felt isn t always necessary when using shingles.

It s created by saturating paper or fiberglass mat with asphalt. For pieces that aren t coming loose press a putty knife underneath it. Felt is often used on wood shingle shake roofs and there is quite a bit of overlap. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.

Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. As mentioned if you are replacing a roof the felt is likely to come off as part of the strip off. I d like to match the new roof to the old one but i can t find a source anywhere. Item 656632 model 0903000.

Felt roofing underlayment is one of the oldest types of roofing underlayment. Actually i attended a roof seminar 10 yrs ago or so and they stressed removing the old felt their theory was the old felt acts like a dry sponge and removes the good properties from the new application. In the industry go overs. No 15 felt and no.

What does this old house do in a situation like this. Remove old felt from the roof with your hands and a putty knife. Including removal of old felt and failed decking installation of 100 mm celotext between ceiling rafters new deck in 22mm osb3 and the glass fibre covering. Grab loose pieces of felt and pull them off the roof with your hands.

Apply pressure and chisel away at it until it comes loose. It is also a requirement under many building codes.