Roof Over Architectural Shingles

By placing metal roofing over shingles you can save in the labor costs of ripping them off while also preventing them from being thrown into landfills.

Roof over architectural shingles.

Statistics by the national roof contractors association show that nine out of ten roofs in the us fail due to a ventilation issue. Three tab shingles are a constant thickness while architectural shingles have multiple layers that create an uneven surface. No missing shingles no gaps no holes in the roof no soft spots because of water damage. If you look at the picture above you can see the difference.

Around an inch should do. Advantages of metal roofs over shingles. 1st and foremost your existing roof needs to be in reasonable shape. Each shingle will require around 4 nails underneath the tar line and about half an inch under where the next shingle will overlap.

Disadvantages of metal roofs. To shingle on top of existing shingles there are a few things you want to make sure. Putting an additional layer over top will only make those issues worse. Architectural shingles are durable less prone to curling and hide imperfections better.

The quick answer is yes you can re roof architectural shingles over existing architectural shingles however you must check with the shingle manufacturer as well. Re roofing over architectural shingles infographic asphalt shingles are one of the most popular choices of roofing materials in the highly competitive residential roofing market filled with various options. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

If you ve got a new roof on your mind there must be something noticeably wrong since these types of roofs come made to hold up for a lot longer than a 3 tab. Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. Lay more shingles on the sides of the roof so that they overlap the start shingles. They usually come in two variants the 3 tab shingles and architectural or dimensional shingles.

A failed layer of architectural shingles is a sign that you have some major issues. Shingle a roof over existing shingles save 75 give or take.