How To Install Underlayment On Roof

If necessary adjust how the material ls aligned to keep it hanging over the decking material.

How to install underlayment on roof.

Install drip edge at the roof eave edges. Check this out. These pieces act as a weather proofing and protective barrier between your house and the elements helping keep water and cold temperatures out. Hammer down any large nails that are exposed by the removal.

Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents. Before applying roofing you ll need to cover the sheathing with roofing felt also often called tar paper most local codes call for using 30 pound felt. I want to be. Using your staple gun secure the felt to the roof.

Install a layer of roofing insulation as recommended by the roofing manufacturer. Synthetic roofing underlayment is to be laid horizontally parallel to eave with printed anti slip side up starting at the bottom of the lowest roof eave with a 1 5 underlayment overhang at the eave covering the pre installed eave drip edge. Smooth out the underlay to prevent any bumps. Now it s time to install the underlayment and flashing.

Here is a video about roofing underlayment. Step 5 nailing the underlayment. Install the underlayment along the roof decking. In roof areas where roof planes meet to form valleys which naturally channel high water flow in wet weather and other roof penetrations such as skylights plumbing vents roof to wall intersections are also important roof areas that can benefit from peel and stick membrane underlayment installation.

It starts with installing solid decking usually plywood or oriented. Overhang the roof rake edge 1 5 and cover the. Subscribe and share please. Some roofers prefer to attach felt underlayment with 1 inch roofing nails or special nails with plastic washers but most codes allow staples which are easier to drive.

Inspect the underlying roof sheathing for damage and make any needed repairs. How to install roofing underlayment the proper way.