Installing Roll Roofing Underlayment

Attach drip edge along the edge of the roof with roofing cement.

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. Roll out the underlay and tack it down making sure that it is flat and smooth not buckled or wrinkled anywhere. Rolled roofing is easy to install and a very economical roofing material to use. How to install roll roofing on low slope roofs.

Cut the membrane into 10 to 15 foot lengths and re roll loosely. Peel the release liner from the membrane. Check the sheathing for any nails or screws that may be. An underlayment of felt roofing is optional.

Extend the front edge of the drip edge so it runs off the roof and into the. Press the membrane of the self adhering roofing underlayment in place with heavy hand pressure to ensure the desired adhesion to the roof deck. 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. You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square.

Peel back 1 to 2 feet of release liner align membrane.