How To Install Underlayment On A Hip Roof

Roofing felt comes in rolls that feature pre marked lines 2 to 3.

How to install underlayment on a hip roof.

Pick a corner to start placing the plywood sheathing. Where the drip edge meets a valley or a hip cut the pieces with overlapping tabs. Use nails to tack the sheet in place on the rafters to hold it in place while you work. Learn more about how to install owens corning proarmor synthetic roof underlayment.

Where drip edge pieces meet overlap them by at least 2 inches. Peel back 1 to 2 feet of release liner align membrane. Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents. For more information on this approach see how to install rigid foam on top of roof sheathing.

Inspect the underlying roof sheathing for damage and make any needed repairs. This also applies to metal hip or valley flashings that may be specified. This would create a great roof but it would be expensive and it s probably overkill. How to lay roofing felt on a hip roof.

Tack it in place at the corner with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof. Hammer down any large nails that are exposed by the removal. Cut the membrane into 10 to 15 foot lengths and re roll loosely. Position the first row of roofing felt flush on the bottom with the edge of the gutter apron.

Sheathing goes onto a roof prior to the final roofing material e g shingles. Press the membrane of the self adhering roofing underlayment in place with heavy hand pressure to ensure the desired adhesion to the roof deck. Peel the release liner from the membrane. Press the tabs firmly to make crisp corners with no gaps and attach with roofing nails.

Nail the plywood sheathing to the rafters. Start the roof felt at one bottom corner of the roof. Install a single vertical length of underlayment roll centrally over hips and down valleys before weaving horizontal underlayment across the valleys and hips. Install underlayment a minimum of 6 inches up roof protrusions or vertical abutments.