Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
Roof shingles over shingles.
Thanks to digital technology all of your decisions and interactions from selecting the right roofer to choosing a shingle to paying the contractor can be done at a distance.
All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.
For homeowners seeking true peace of mind landmark shingles are the high quality reliable choice for beautifying and protecting a home.
And your family can remain in the home during the installation or repair.
This can lead to increased rot mold and decrease the structural integrity of your home.
The next shingle should be placed and secured beside the first one.
If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles.
Step 5 lay the trimmed shingles.
Leak around a dormer which the homeowner never knew about long term effects of shingling over shingles.
Secure the shingle with nails one inch from each corner.
Good quality composite shingles can weigh 350 to 450 pounds per square 100 square feet of roofing installed.
Everything can be done at a distance.
How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.
The shingle should also hang about a quarter of an inch over the roof edge.
Roofing second layer of shingles roofing.
Our roofing tests focus on a shingle s strength and how well it maintains its appearance over time.
Installing new roof shingles over old effectively doubles the weight of the.
In a shingle over if some of the decking has buckled and warped over the years it likely isn t going to be noticed and fixed.
Chances are your roof structure was designed for a dead load of one layer of shingles plus extra for snow and a safety margin.
The first shingle should be centered over the line that you marked with chalk.
The first thing to know about your roofing project.
2 stainguard algae protection is available only on shingles sold in packages bearing the stainguard logo.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
We apply force to the shingles by using a calibrated machine called an instron that applies.
For installations not eligible for the gaf roofing system limited warranty see the gaf shingle accessory limited warranty.