You can install EPDM membrane over an existing roof only if a new layer of 5/8″ plywood, 5/8″ OSB board or polyisocyanurate board with a fiberglass backing is used as a barrier to protect the EPDM.
Can EPDM be applied to plywood?
EPDM rubber roofing can be installed to a few different surfaces, but it works best when it adheres to timber deckings such as roofing grade plywood or OSB sterling board. Sometimes EPDM can be bonded to lightweight concrete and other surfaces that are non-porous like fibreglass and tissue faced insulation.
Does EPDM have to be glued down?
When you are fitting an EPDM roof, you need to make sure that it is glued down properly. During the membrane application process, you will need to apply two different types of adhesive. The first is a water-based adhesive. Use Permaroof deck adhesive for the best results.
Do you have to glue a rubber roof down?
Roof deck timber choice for EPDM
If you are fitting a one piece EPDM roof then you will need to glue it down, unless it’s ballasted or mechanically fixed (more on this later). The trouble with this is that the glues used in rubber roofs do not like the presence of contaminants such as bitumen or asphalt.
What can EPDM be laid over?
ClassicBond EPDM is best bonded on to timber surfaces such as roofing grade plywood or OSB3 (Oriented Strand Board) sometimes called sterling board. ClassicBond can also be bonded to light weight concrete and other non porous surfaces such as Fibreglass and tissue faced insulation.
What is the best glue for EPDM rubber?
Which industrial adhesive can be used to bond EPDM rubber? Cyanoacrylate adhesive is practically the only choice if you are looking for a high strength bond. Permabond recommends its 105 grade cyanoacrylate for this troublesome substrate.
Can you nail down rubber roofing?
Nail the roofing down every 3 inches. The nails should begin 3/4 of an inch from the roofing’s edges. However, leave one edge of the roofing unnailed. This is the side that the next sheet will be overlapping and should be nailed down only after this new sheet is on top.
Can you walk on EPDM rubber roofing?
Yes to an extent. EPDM is designed to take LIGHT foot traffic during installation and for occasional cleaning or maintenance. If you require more use than this, i.e. for a balcony then there are additional materials that can be laid over your EPDM for a more durable solution.
How long does a rubber roof last?
How Long Do Rubber Roofs Last? Rubber roofing, when installed professionally, can last 25 years or more. TPO and EPDM roof systems have similar lifespans of 20 to 25 years. High-quality TPO roofing that is reinforced with fiberglass can last even longer.
What is better EPDM or TPO?
TPO has better dimensional stability than EPDM. EPDM is more likely to shrink which can cause a variety of problems on your roof.
Are rubber flat roofs any good?
Rubber roofing is suitable for extreme conditions, giving you one of the most durable and reliable roofs available that typically lasts between 30-50 years. In time, you may find a felt flat roof can pick up moss and algae; the synthetic rubber doesn’t support the growth of moss so you are guaranteed a clear roof!
How much does a rubber roof cost?
Rubber roofing costs anywhere between $8,000 to $14,000 to install depending on the slope, pitch, and size of your roof. You can expect to pay $4.25 to $8.25 per sq. foot or $425 to $8825 per square installed on a standard sized single story home.
Can you glue EPDM to felt?
Each EPDM membrane roofing system can be bonded to a range of different surfaces.
|Felt or Asphalt||FG35 Primer|
Can I put EPDM over felt?
However, for surfaces such as felt, overboarding and adding an EPDM rubber roof is ideal for adding protection to it and further insulating your roof.
Asphalt flat roof construction, repair and replacement with an EPDM Rubber Roofing Membrane.
|Type of Bonding Surface||Flexi Proof||DuoPly|
How long does EPDM rubber last?
An EPDM rubber roof is incredibly long-lasting and durable. The rubber recycled and used for the synthetic rubber membrane isn’t damaged under the sun’s UV or ultraviolet rays. If installed correctly, you can expect a rubber roof to in excess of up to 50 years.