Rolled Roofing Overlap

Liberty sbs self adhering roofing system will provide long lasting protection for the low slope areas of your property without the danger or hassles associated with the installation of other conventional roofing products.

Rolled roofing overlap.

Sbs roll roofing overlap width is commonly 3 4 or 3 6 varying by product and also referred to as the selvage edge width. To seal a plumbing vent spread roofing. Learn about the liberty sbs self adhering base ply sheet. Attach drip edge along the edge of the roof with roofing cement.

Continue to stagger the rows as you work with a two inch overlap on the horizontal seams and a six inch overlap on the vertical seams. The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. How to do it attach first course. Clean the roof with a broom to remove any debris.

Overlap the next strip of roofing material with the first by at least 4 inches. Check the sheathing for any nails or screws that may be. This will help to protect the subsurface. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest.

Use a 6 inch swath of roofing cement to attach the ends of your strips of roll roofing to the roof itself. Plan so that no two butt joints are closer than 2 feet from each other. Smooth down the sheet with your hand to adhere the roll roofing to the roof deck. 8 when you encounter a roof valley trim the roll roofing so it ends 1 2 inch from the valley s center.

Pull back 6 inches of the release paper in order to position the start of the roofing sheet accurately. Cover hips or ridges last. Extend the front edge of the drip edge so it runs off the roof and into the. How to install roll roofing on low slope roofs.

Align the length of roll roofing with the lowest edge of the flat roof and flush to the side edge of the roof. Roll roofing overlap horizontal choose the overlap width according to the number of plies of roof to be installed. Video of the day. 7 apply the next piece of roll roofing so the overlap covers the nail heads using roofing cement to secure the 2 pieces of roofing together.

Apply cement at all of the seams and nail down all sheets as you progress leaving room for about one inch of overhang on each side. Continue to attach the material with nails every 3 inches.