Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
Roofing over old roof.
But before we get started one thing must be clear.
Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because.
I ll explain why later.
You can t do it with wood or slate for example and you should never mix materials such as laying asphalt shingles over cedar shakes.
You can save.
In fact the only pro to a shingle over is it s cheaper and cleaner.
When contemplating a new roof many people hope to simply do a shingle over and avoid the extra cost and mess of tearing off the existing roof and starting from scratch.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
How to install a roof over an existing roof.
Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.
Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles.
When roofing over your existing shingles can be a good idea.
When you should tear off your roof and start from scratch instead.
Let s start with the good.
In this video i take show how to proper recover an old roof and make it look like it s a single layer check it out you might find useful tips for your new.
Sometimes they use a standard gardener s potato fork but the best tool for the job is a red ripper integrated roofing technologies 2413 stevenage dr unit 11.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
Why installing new shingles over old shingles can be good.
The roofing crew uses a red ripper roofing demolition tool to pry up cap shingles which are collected in a plastic bin along with old boot flanges and any loose shingle tabs.