Shingling Second Story Off A Roof

Attach with nails along the top edge of the strip.

Shingling second story off a roof.

If you don t tear off the old layer you can t examine the decking. For a second layer to be as good as a roof tear off you would have to have sound decking no leaks and a roof with no sidewalls where flashing is needed in order to tie the tiles in to the exterior walls. 3 starter shingles a narrow row of asphalt roofing the starter strip is nailed to the perimeter of the roof with a bead of adhesive on top that grips the underside of the first course of shingles. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.

Up from the valley center. Re lay the shingles you removed from the existing roof. When you factor in rain or snow it will add even more weight. Bed the end of each shingle in a 2 in wide ribbon of roofing cement placed 4 in.

Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft. Rip cut the starter strip or starter pieces so that they butt up against the second course of existing shingles and are even with the front edge of the existing roofing. Roofing second layer of shingles roofing. Use a starter strip or cut pieces for a starter course.

Another issue is that when you add in the second layer it can add extra weight to your roof. Reasons why you should not add a second layer of shingles it will shorten the lifespan of your roof. This will force you to replace your roof earlier than expected.