Install Rubber Roof Over Asphalt

Can you install metal roofing over asphalt shingles.

Install rubber roof over asphalt.

Install the roof shingles. Can i install epdm membrane directly over an existing roof. A rubber roof provide a number of benefits that are unavailable from other roofing methods. 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.

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. This post discusses using stone coated metal shingles over the top of asphalt shingles. First rubber roofs are less expensive to install. Most codes now allow no more than two layers of roofing before requiring a complete tear off.

However you ll want to check with your local building department before you make any decisions. 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. Can epdm be bonded directly over asphalt tar shingles asphalt rolled roofing or felt paper. Finally the preparation is over you can now install the shingles.

Yes you can install a metal roof over shingles. Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it. 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. Rubber roof installations are rather easy and a great roofing option.

No the oils in pertroleum based products will cause epdm to swell and fail. 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. It leaks over the bed room where the flat roof is the water does not drain from that area. It is more cost efficient as well which will save you money on your energy expenses.

A square equals 100 square feet. Epdm should be bonded over 5 8 plywood 5 8 osb board or polyisocyanurate board with a fiberglass backing. An epdm rubber roof can be bonded to asphalt but this depends on the rubber membrane system you are using. The average cost for rubber roofing is 300 400 per square.

It cannot be bonded to uneven surfaces such as shingles as this hinders the membrane from successfully bonding onto the surface. Now this roof is a old rolled asphalt roof that has been coated many times with roof pitch. Many actually come with warranties up to 45 years. Therefore the cost advantage over time is even greater.

Start on the lower edge of the roof install the starter shingles by nailing them down using roofing nails. 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.