How Much Roofing Felt Do I Need For 8x6 Shed

One roll of 15 felt is more than enough for most sheds unless it is unusually large.

How much roofing felt do i need for 8x6 shed.

I need advice on how to best economically purchase felt for my 8ft 2 44m wide x 10ft 3 04m long shed. The current felt is old and needs replacing i will attempt to do this while the wife is at work lol. Continue to work up the complete side of the roof in the same method smaller sheds may only need one length on each side. You need to be able to calculate the area to be covered and allow for overlap.

If you are building a shed that isn t the size of a house which most of us are then a single roll of 30 felt may be enough. 1 for each side of the roof as well as a third section that will overlap the 2 side panels by about 30cm on each side and run along the top ridge of the shed. I see some diy websites and other places sell felt is metres e g. Roofing felt also known as tar paper is a roll of felt coverage is often used when constructing a roof.

Anyway calculate the area plus overlap in square metres and that number will be the same as the length of 1m wide roofing felt that you ll need. For most sheds you ll need to cut 3 pieces of felt. The roof should be finished with a capping sheet along the ridge. Use 1 4 for up to a 9 12 pitch.

Repeat the same process for the opposite side of the roof. Are the dimensions given those of the roof area to be covered or of the shed s footprint on the ground. Roofing felt is essential to ensure your outbuilding is ready for all weathers by providing a waterproof cover to the building s roof. For roof pitches of 5 12 to 7 12 use a factor of 1 3.

This correction factor will take into account the greater area of the roof due to the pitch. 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. Multiply the total area determined in step one by a correction factor to account for the roof pitch. How many rolls of felt will you need.

You ll need enough felt to cover the entire area of the roof with a little extra on each edge around 5cm to allow for overlaps at the eaves and at the gable ends approximately 7 5cm. It provides extra waterproofing to protect the wood until shingles are installed. They sell rolls in 8m x1m. In order to know the appropriate amount of roofing felt to use the roof pitch will need to be calculated first.

The shed has a apex roof. If your roof pitch is 3 12 or 4 12 multiply by 1 25. Felt the second side of your shed. The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound roofing felt covers about 200 ft 2 or 2 squares.

Rolls of felt are 36 wide x 144 long for 15 and 72 long for 30.