Can epdm be bonded directly over asphalt tar shingles asphalt rolled roofing or felt paper.
Install rubber roof over asphalt.
It leaks over the bed room where the flat roof is the water does not drain from that area.
Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.
No the oils in pertroleum based products will cause epdm to swell and fail.
Can you install metal roofing over asphalt shingles.
Install another set of starter shingles at the sides of the roof ensure the two sets overlap.
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 i install epdm membrane directly over an existing roof.
Yes you can install a metal roof over shingles.
Therefore the cost advantage over time is even greater.
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.
Upgrade insulation whilst you are carrying out work on your roof it might be a good time to install a new warm deck insulation.
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.
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.
Start on the lower edge of the roof install the starter shingles by nailing them down using roofing nails.
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.
Many actually come with warranties up to 45 years.
It cannot be bonded to uneven surfaces such as shingles as this hinders the membrane from successfully bonding onto the surface.
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.
Install the roof shingles.
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.
Although rubber roofing is more expensive its lifespan is double that of asphalt roofing so over the long term it will actually cost less.
Now this roof is a old rolled asphalt roof that has been coated many times with roof pitch.
Epdm should be bonded over 5 8 plywood 5 8 osb board or polyisocyanurate board with a fiberglass backing.
A square equals 100 square feet.
A rubber roof provide a number of benefits that are unavailable from other roofing methods.
Finally the preparation is over you can now install the shingles.
It is more cost efficient as well which will save you money on your energy expenses.
However you ll want to check with your local building department before you make any decisions.
