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.
How to roof over existing shingles.
Address any existing roof leaks and replace rotten rafters or.
Roofing second layer of shingles roofing.
Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.
Choose a shingle style with the same dimensions as those on your.
We discuss the nesting method which helps minimize an uneven appear.
You can save.
Although many metal roof systems can be applied over an existing roof layovers are more commonly done with asphalt shingles.
When roofing over your existing shingles can be a good idea.
But first here are a few precautions about the underlying material.
To shingle on top of existing shingles there are a few things you want to make sure.
In this video we provide details on how to install roof shingles over existing shingles.
Installation of metal roofing over shingles.
When you should tear off your roof and start from scratch instead.
Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because.
We re going to break them down so you know what to look out for.
If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing.
How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.
How to roof over existing shingles.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.
Shingle a roof over existing shingles save 75 give or take.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
Let s start with the good.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
No missing shingles no gaps no holes in the roof no soft spots because of water damage.