Rolled Roofing Overlap

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Rolled roofing overlap.

Check the sheathing for any nails or screws that may be. Plan so that no two butt joints are closer than 2 feet from each other. Cover hips or ridges last. Continue to attach the material with nails every 3 inches.

To seal a plumbing vent spread roofing. Overlap the next strip of roofing material with the first by at least 4 inches. 2 or 3 varies by manufacturer or 16 12 or 9 exposure for 2 3 or 4 ply roofs respectively. Pull back 6 inches of the release paper in order to position the start of the roofing sheet accurately.

Use a 6 inch swath of roofing cement to attach the ends of your strips of roll roofing to the roof itself. Smooth down the sheet with your hand to adhere the roll roofing to the roof deck. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest. Attach drip edge along the edge of the roof with roofing cement.

Roll roofing overlap horizontal choose the overlap width according to the number of plies of roof to be installed. Clean the roof with a broom to remove any debris. This will help to protect the subsurface. Learn about the liberty sbs self adhering base ply sheet.

How to do it attach first course. Position the first course so it overhangs the drip edges by about 1 4 inch and roll it out a. 8 when you encounter a roof valley trim the roll roofing so it ends 1 2 inch from the valley s center. How to install roll roofing on low slope roofs.

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. The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. Extend the front edge of the drip edge so it runs off the roof and into the. Roofing felt is required to overlap 2 inches over the lower felt course.

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. 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.