1st and foremost your existing roof needs to be in reasonable shape.
Shingle a roof over existing shingles.
All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
If you choose to install metal roofing over shingles there are certain things you must keep in mind.
Shingle a roof over existing shingles save 75 give or take.
No missing shingles no gaps no holes in the roof no soft spots because of water damage.
A steel roof is a lifetime investment lasting 50 years or more if it s a good one.
Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
To shingle on top of existing shingles there are a few things you want to make sure.
If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.
Address any existing roof leaks and replace rotten rafters or.
Installation of metal roofing over shingles.
Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
We re going to break them down so you know what to look out for.
Why installing new shingles over old shingles can be good.
When you should tear off your roof and start from scratch instead.
How to roof over existing shingles.
But first here are a few precautions about the underlying material.
You can save.