How To Starter Course Shingles Over Existing 3 Tab Roof

Their tab slots should not line up with the tab slots of the starter course if there are any.

How to starter course shingles over existing 3 tab roof.

Lay more shingles on the sides of the roof so that they overlap the start shingles. When you should tear off your roof and start from scratch instead. Using four roofing nails or up to six in high wind areas secure the starter shingle to the surface of the roof. When roofing over your existing shingles can be a good idea.

Place the top of each starter shingle firmly against. If you are using a power nailer drive nails by squeezing the trigger and bouncing the nailer s tip onto the shingle. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. Butt the edges together instead of overlapping them.

Cut and install shingles 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. Nail the shingles just above the tab slots. Because this is the starter course the second course will be placed directly on top of it. Continuing with the starter shingles.

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. The next shingle should be placed and secured beside the first one. Drive a nail at one end first then drive the others.

Let s start with the good. Nail the shingles just above the tab slots. Each shingle will require around 4 nails underneath the tar line and about half an inch under where the next shingle will overlap. 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.

Continue this until the first row of shingles is complete. 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. The first row of shingles should overhang the drip edge of the roof. Secure the shingle with nails one inch from each corner.

Do not penetrate the shingles with the hammer. 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. The shingle should also hang about a quarter of an inch over the roof edge. 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.

Around an inch should do. Their tab slots should not line up with the tab slots of the starter course if there are any.