Installing Roll Roofing Underlayment

It is required as an underlayment for most low slope asphalt roofing applicaions and also works well for low slope shed roofs without any additional roofing on top of it.

Installing roll roofing underlayment.

Peel the release liner from the membrane. Peel back 1 to 2 feet of release liner align membrane. It works well for backyard storage shed roofing applications. Clean the roof with a broom to remove any debris.

You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square. How to install roll roofing on low slope roofs. Attach drip edge along the edge of the roof with roofing cement. Extend the front edge of the drip edge so it runs off the roof and into the.

Cut the membrane into 10 to 15 foot lengths and re roll loosely. An underlayment of felt roofing is optional. While it is not necessary to install an underlay with roll roofing it is inexpensive and adds a layer of protection that makes it worthwhile. The roofing should overhang the eaves by inch except where you install drip edge flashing on top of the roofing along the rake edge.

Press the membrane of the self adhering roofing underlayment in place with heavy hand pressure to ensure the desired adhesion to the roof deck.