How To Install Underlayment For Roofing

Install the underlayment along the roof decking.

How to install underlayment for roofing.

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. Install drip edge at the roof eave edges. Installing a roof is much more than just nailing shingles onto some boards. Subscribe and share please.

Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents. Smooth out the underlay to prevent any bumps. I want to be. If necessary adjust how the material ls aligned to keep it hanging over the decking material.

Overhang the roof rake edge 1 5 and cover the. 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. 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. It starts with installing solid decking usually plywood or oriented.

Step 5 nailing the underlayment. Install a layer of roofing insulation as recommended by the roofing manufacturer. Here is a video about roofing underlayment. 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.

Inspect the underlying roof sheathing for damage and make any needed repairs. Hammer down any large nails that are exposed by the removal.