Install Rubber Roof Over Asphalt

Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.

Install rubber roof over asphalt.

An epdm rubber roof can be bonded to asphalt but this depends on the rubber membrane system you are using. Now this roof is a old rolled asphalt roof that has been coated many times with roof pitch. Although rubber roofing is more expensive its lifespan is double that of asphalt roofing so over the long term it will actually cost less. First rubber roofs are less expensive to install.

Can i install epdm membrane directly over an existing roof. Many actually come with warranties up to 45 years. A rubber roof provide a number of benefits that are unavailable from other roofing methods. However you ll want to check with your local building department before you make any decisions.

Epdm should be bonded over 5 8 plywood 5 8 osb board or polyisocyanurate board with a fiberglass backing. Most codes now allow no more than two layers of roofing before requiring a complete tear off. If the existing roof deck is in good order then in most cases the existing waterproof layer such as felt can be left in place and the new insulation bonded over the top using pu adhesive or mechanically fixed using screws and washers. Can epdm be bonded directly over asphalt tar shingles asphalt rolled roofing or felt paper.

Can you install metal roofing over asphalt shingles. Install the roof shingles. This update will cost you about 10 15 linear foot so if you have a few hundred feet of seams the total cost will be several thousand dollars making it a very expensive maintenance program. 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.

Upgrade insulation whilst you are carrying out work on your roof it might be a good time to install a new warm deck insulation. It cannot be bonded to uneven surfaces such as shingles as this hinders the membrane from successfully bonding onto the surface. Rubber roof installations are rather easy and a great roofing option. After about 5 7 years you will have to reseam your roof by installing a 6 12 inch wide epdm cover tape over the old seams to make sure they don t leak for the next few years.

No the oils in pertroleum based products will cause epdm to swell and fail. The average cost for rubber roofing is 300 400 per square. Therefore the cost advantage over time is even greater. It leaks over the bed room where the flat roof is the water does not drain from that area.

Install another set of starter shingles at the sides of the roof ensure the two sets overlap. Yes you can install a metal roof over shingles. Start on the lower edge of the roof install the starter shingles by nailing them down using roofing nails. If you re planning on placing a rubber membrane across an existing roof covering you ll have to make sure that the surface is suitable for bonding.

This post discusses using stone coated metal shingles over the top of asphalt shingles. A square equals 100 square feet.