The spacing between the nails on the drip edge should be less than 12 inches apart.
Overlap on roofing paper.
When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.
Cut a slit from the side of a paper roll to accommodate vent pipes.
This has advantages and disadvantages and each of those should be weighed carefully.
Apply each row in a perfectly parallel manner.
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.
Sections until you get the hang of it and don t roll out a 25 ft.
Overlap seams on the same row 6 in.
Tack down the peak s tar paper.
Valley ridges and hips should have a 6 inch overlap of paper.
Practice on a couple of 10 ft.
Where the drip edge meets a valley or a hip cut the pieces with overlapping tabs.
The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below.
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.
Overlap and cut drip edges where drip edge pieces meet overlap them by at least 2 inches.
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.
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.
Staple down the tar paper.
Pay special attention to movements on top of any roof.
In general overlaying a new roof takes less time less labor and thus less money.
This creates a waterproof barrier similar to the scales of a fish.
The drip edge should extend at least 2 inches on the roof.
Press the tabs firmly to make crisp corners with no gaps and attach with roofing nails.
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.
Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe.
Section of paper on a steep roof or when it s windy.
Roofing felt is required to overlap 2 inches over the lower felt course.
It s best to wear gloves and protective eyewear for safety purposes.
Install all subsequent courses with the same overlap until the top edge of the paper is within 6 inches of the roof s peak.
Adjacent pieces of drip edge should overlap at least 2 inches 51 mm.
Allow about 4 inches 10 cm of overlap between the bottom of the second row and the top of the first layer.
