Can You Put A Rubber Roof Over Asphalt

Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles.

Can you put a rubber roof over asphalt.

An epdm rubber roofcan be bonded to asphalt but this depends on the rubber membrane system you are using. If you just doing a section you most often can cut out the old and put in the new. Now this roof is a old rolled asphalt roof that has been coated many times with roof pitch. The installation of metal roofing is often easier and faster than other roof types and because of its simple design and generally large size can actually be installed directly on top of existing roofing materials like asphalt shingles and foam roofing.

Metal roofing is a commonly used material for several reasons ranging from low cost to durability. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. About rolled roofing the term rolled roofing generally refers to a product called mineral paper which builders use as a primary roof covering on sloped residential roofs.

The problem would be a back water lap. It cannot be adhered directly to asphalt. But they are a bit more expensive. 6 coverstrip over the seam will work for this.

It cannotbe bonded to uneven surfaces such as shingles as this hinders the membrane from successfully bonding onto the surface. However you ll want to check with your local building department before you make any decisions. Though rubber roofing is not terribly heavy applying it over an already weighty roof system may prove deleterious in the future. If its epdm condensation can and does happen between the two layers eventually un gluing them selfs.

If your doing a whole section you can lay a 1 2 coverboard. The new waterproof membrane can then be bonded to the insulation. Just make sure that you scrape off all loose rock if your roof is tarred and rocked. If you learn about the characteristics and installation requirements of elastomeric coatings you can determine when and where to apply them.

If you re planning on placing a rubber membraneacross an existing roof covering you ll have to make surethat the surface is suitable for bonding. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. If you can t afford a metal roof you can put the rubber over the old asphalt. Yes you can install a metal roof over shingles.

The solid line represents the built in guter and the dotted line being the flat roof where the bed room extends about 4ft out from the house. Last rubber roofing must be provided with a barrier between it and the old roof.