Overlap On Roofing Paper

Tack down the peak s tar paper.

Overlap on roofing paper.

The drip edge should extend at least 2 inches on the roof. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest. Overlap and cut drip edges where drip edge pieces meet overlap them by at least 2 inches. Adjacent pieces of drip edge should overlap at least 2 inches 51 mm.

Install all subsequent courses with the same overlap until the top edge of the paper is within 6 inches of the roof s peak. The spacing between the nails on the drip edge should be less than 12 inches apart. Apply each row in a perfectly parallel manner. Practice on a couple of 10 ft.

Sections until you get the hang of it and don t roll out a 25 ft. Use a utility knife to trim all excess paper on the last pass. Overlap seams on the same row 6 in. Section of paper on a steep roof or when it s windy.

This has advantages and disadvantages and each of those should be weighed carefully. This creates a waterproof barrier similar to the scales of a fish. Remember to always overlap roof paper at valley ridges and hips by six inches. Allow about 4 inches 10 cm of overlap between the bottom of the second row and the top of the first layer.

In general overlaying a new roof takes less time less labor and thus less money. Roofing felt is required to overlap 2 inches over the lower felt course. The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. If you rolled the first row from west to east the new row should be east to west.

Valley ridges and hips should have a 6 inch overlap of paper. Where the drip edge meets a valley or a hip cut the pieces with overlapping tabs. Press the tabs firmly to make crisp corners with no gaps and attach with roofing nails. Fold it down over the peak so that each side overlaps a piece of tar paper below the peak.

Before securing the end of a row take time to walk the row smoothing out any rough spots and matching up the snapped chalk lines. If you re fastening the paper with a staple hammer try to get a staple in every square foot of the paper photo 5. Position the next course of tar paper farther up the roof so that its lower edge overlaps the upper edge of the paper in the first course by 1 foot. Most roof felt pieces have guidelines stenciled into them to ensure you apply them in straight parallel lines.

When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material. Staple down the tar paper. However this can only be done once. The vertical leg of the drip edge should be at least 1 5 inches wide and extend at least 0 25 inches below the sheathing.

It s best to wear gloves and protective eyewear for safety purposes.