How Much Over Lay On Tar Paper Roofing

In roofing and applying felt paper there is always extra left over.

How much over lay on tar paper roofing.

Even if there s older tar paper in place you should simply rip it off and replace it. You will need just under 1 2 of a roll. Video of the day. The black rolls of roof paper or felt are made with asphalt and are normally available in rolls.

The answer is the number of square feet of roofing tar paper you need to purchase. Multiply the width by the height for the square footage of each section then add the totals. It s thinner lighter and a single roll can cover much more area than a similarly sized roll of felt. And even though it is thinner it is just as strong as felt and less resistant to ripping.

The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Make sure the rolls overlap by at least four inches and staple them into place on the wood. Roofing felt is required to overlap 2 inches over the lower felt course.

As long as the wood on your roof is in good condition you can go ahead and put tar paper down. Good luck on your project. The most common size width for rolls of roofing paper is 36 inches. The specs on the website say that this will cover 432 sqft.

Drip edges on the eaves any valley liners and all flashing should be installed before the tar paper is laid. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest. Chalk lines should be snapped 33 5 8 above the eave line. Roof felt also known as tar paper is a waterproof fiberglass product.

This paper is a new and in some aspects improved material for roofing underlayment. This will help give you a moisture barrier on the roof. After this lines should be snapped every 34 as you move up the roof. Whatever your reason for attaching roof felt you should only do it after cutting your pieces to the appropriate size and cleaning and.

Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Your math 10 x20 200 sqft. It is used for temporary roofing for weatherproofing and as an underlayment under shingles or other permanent roofing materials.