Felt Overlap For Roofs

Wrap felt over hips.

Felt overlap for roofs.

Roofing felt is required to overlap 2 inches over the lower felt course. Hip roofs do not have gable ends but instead they feature sides that all slope downward and must be shingled. As you work the paper can be tacked down in the center so it won t blow away. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest.

The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. Afterward apply the felt in the same manner on the opposite side. Do the other side of the roof the same way also with an overlap at the peak. Continue rolling new felt rows until you are close to the roof s peak.

15 pound roofing felt. Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it. Once you get close to the top add another layer of felt so that you overlap the ridge of your roof by about 1 foot 0 30 m. Laying the felt the roofing felt should be applied in layers that overlap.

Let it stand for about 30 minutes and then using galvanized nails and your hammer nail down the first layer. Work up the roof to the peak and fold felt over the top overlapping at least 3 inches and fasten it on both sides. Roofing felt or tar paper is infused with a petroleum based solution to provide an additional layer of roof protection under shingles. Roll the felt so that it overhangs the edge by 2 inches.