Fold it down over the peak so that each side overlaps a piece of tar paper below the peak.
Overlap on roofing paper.
Pay special attention to movements on top of any roof.
When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.
If you rolled the first row from west to east the new row should be east to west.
Use a utility knife to trim all excess paper on the last pass.
Overlap seams on the same row 6 in.
Tack down the peak s tar paper.
Cut a slit from the side of a paper roll to accommodate vent pipes.
Remember to always overlap roof paper at valley ridges and hips by six inches.
Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest.
Sections until you get the hang of it and don t roll out a 25 ft.
The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below.
This has advantages and disadvantages and each of those should be weighed carefully.
Valley ridges and hips should have a 6 inch overlap of paper.
Overlap and cut drip edges where drip edge pieces meet overlap them by at least 2 inches.
Roofing felt is required to overlap 2 inches over the lower felt course.
The drip edge should extend at least 2 inches on the roof.
However this can only be done once.
Apply each row in a perfectly parallel manner.
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.
Section of paper on a steep roof or when it s windy.
Practice on a couple of 10 ft.
Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe.
If you re fastening the paper with a staple hammer try to get a staple in every square foot of the paper photo 5.
Adjacent pieces of drip edge should overlap at least 2 inches 51 mm.
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.
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.
Install all subsequent courses with the same overlap until the top edge of the paper is within 6 inches of the roof s peak.
Staple down the tar paper.
The spacing between the nails on the drip edge should be less than 12 inches apart.
This creates a waterproof barrier similar to the scales of a fish.
It s best to wear gloves and protective eyewear for safety purposes.
Where the drip edge meets a valley or a hip cut the pieces with overlapping tabs.
Allow about 4 inches 10 cm of overlap between the bottom of the second row and the top of the first layer.
