When roofing over your existing shingles can be a good idea.
Roofing over old roof.
Why installing new shingles over old shingles can be good.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because.
Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.
When you should tear off your roof and start from scratch instead.
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.
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.
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.
But before we get started one thing must be clear.
Roofing over your old roof can save you around 1 000 on installation costs because the roofing company won t have to remove and dispose of old shingles.
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.
Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles.
You can save.
In fact the only pro to a shingle over is it s cheaper and cleaner.
It can save you money at the time but it might actually end up costing you more in the long run.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
Although it sounds like a good idea we can assure you the cons heavily outweigh the pros.
Let s start with the good.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.