How To Starter Course Shingles Over Existing 3 Tab Roof

The first row of shingles should overhang the drip edge of the roof.

How to starter course shingles over existing 3 tab roof.

Rip cut the shingles for the first course so they butt up against the third course of existing shingles and are even with the front edge of the starter course. Continuing with the starter shingles. Butt the edges together instead of overlapping them. If you are using a power nailer drive nails by squeezing the trigger and bouncing the nailer s tip onto the shingle.

The shingle should also hang about a quarter of an inch over the roof edge. Because this is the starter course the second course will be placed directly on top of it. To attach a 3 tab shingle align it with the layout line and drive nails 1 2 inch above the cutout slots including the half slots at each side. Continue this until the first row of shingles is complete.

Their tab slots should not line up with the tab slots of the starter course if there are any. Why installing new shingles over old shingles can be good. When you should tear off your roof and start from scratch instead. When roofing over your existing shingles can be a good idea.

The first shingle should be centered over the line that you marked with chalk. Their tab slots should not line up with the tab slots of the starter course if there are any. If laying three tab shingles over three tab shingles it is important to nest the new shingles against the old to create a flat surface as friedman elaborates just below. Around an inch should do.

Drive a nail at one end first then drive the others. The next shingle should be placed and secured beside the first one. This process starts with a 5 inch starter strip fit along the eaves and set against the second course of existing shingles see figure 2 16. After the first shingle has been placed on the roof set the second starter shingle next to it.

Nail the shingles just above the tab slots. Using four roofing nails or up to six in high wind areas secure the starter shingle to the surface of the roof. To make your own use the flat solid part of the shingles and a heavy duty utility knife to cut pieces that are approximately 5 inches wide. Each shingle will require around 4 nails underneath the tar line and about half an inch under where the next shingle will overlap.

Let s start with the good. Lay more shingles on the sides of the roof so that they overlap the start shingles. Nail the shingles just above the tab slots. Place the top of each starter shingle firmly against.

Secure the shingle with nails one inch from each corner. You can save.