Also known as tar paper roofing felt originated in finland in the 1870 s as a waterproofing underlayment for roofs.
Garden roof felt.
Later asphalt was used in the manufacture of roofing felt.
So after a long research i settled for this grade at the best price i could find.
Roofing felt is most commonly used for the waterproofing of non habitable garden buildings such as cabins or sheds.
Ideal for an apex flat or pent roof shed felt and roofing membrane are durable and perfect for a newly built structure or to re cover existing roofing material.
This grade of roof felt was the cheapest i could find for re roofing a large shed.
Since you will have overlap between rows this works out to a total coverage area of 400 square feet the dimensions of a 20 x 20 roof.
It is typically used as an underlay that sits between the surface it is being applied to and the final layer of roofing material.
Make sure you have enough roof felt you don t want to have to stop mid way through the project to buy more felt.
Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.
Item 656632 model 0903000.
Next grade up was 50 more expensive and the next grad up from that was 100 more expensive.
Roofing felt is essential to ensure your outbuilding is ready for all weathers by providing a waterproof cover to the building s roof.
A conventional roll of felt is enough for 432 square feet.