Is EPDM same as TPO?

Is EPDM same as TPO?

Believe it or not, TPO is actually in a broad family of rubber roofing materials. TPO is a blend of polypropylene and ethylene-propylene rubber. EPDM stands for Ethylene Propylene Diene Monomer. It is a synthetic rubber derived from oil and natural gas (ethylene propylene).

Can EPDM be patched?

Long-lasting repairs to an EPDM roofing system requires the right repair materials and careful prep of the repair area. Patching materials also are sold in kits that include cleaner, primer, and roller for bonding the patch. These kits can be expensive, but they may include enough material to make several repairs.

Is TPO or EPDM cheaper?

Simply said, the primary advantage of EPDM over TPO is that it’s a little cheaper. It also has a slightly longer lifespan and is less likely to be damaged from hail. TPO is (slightly) more expensive, but when it comes down to it, choosing one over the other may ultimately be based on your geographic location.

Is EPDM TPO compatible?

TPO is designed to combine the durability of EPDM rubber with the proven performance of hot-air weldable seams .

What is a fully adhered rubber roof?

Roofs that are fully adhered are glued directly to the insulation below. This requires the 4’x8′ insulation boards to serve the dual role of insulating and securing the roof to the metal deck, which requires far more screws.

Can you patch a TPO roof with EPDM?

Another added benefit for using white-on-black EPDM on TPO is the simplification of completing repairs. Use white-on-black EPDM and repairs can be done without lugging a bunch of cords and heat guns, or a generator, to the roof. So if adhering to TPO, then use TPO Primer. If adhering to EPDM, use EPDM Tape Primer.

What sealant can I use on EPDM?

Lap Sealant

• Firestone Lap Sealant is a high quality sealant with excellent adhesion to a variety of surfaces, and for use in conjunction with Firestone EPDM systems.
• Surfaces to receive Lap Sealant must be clean, dry and free from loose and foreign materials, oil and grease.

Can you put TPO over EPDM roof?

Yes. Recovering with TPO is a great option for a building with an aging EPDM roofing system. It’s easy.

Which is better for roofing TPO or EPDM?

TPO has better dimensional stability than EPDM. EPDM is more likely to shrink which can cause a variety of problems on your roof. 5. SEAM STRENGTH An effective roofing system depends on strong seams. EverGuard ® TPO’s welded seams are stronger than taped EPDM seams. By welding the seams, TPO becomes one monolithic membrane across the entire roof.

Can You Heat Weld a TPO to an EPDM?

REPAIRS TPO is thermoplastic, so you can heat-weld seams, and it’s ideal for repairs. Simply clean the membrane and heat-weld directly to it. EPDM cannot be welded and cannot be re-taped when the weather is too cold to use primer and adhesives, requiring a temporary fix until the weather warms up.

Which is thermoplastic polyolefin ( TPO ) roofing membrane?

Thermoplastic Polyolefin (TPO) roofing systems are made of a single synthetic layer and reinforcing scrim that can be used to cover flat roofs. TPO membranes are manufactured in 10, 12, or 20 feet wide sheets that can be rolled up and taken to your facility.

How is EPDM bonded to a metal roof?

The metal panel roof can be mechanically fastened or bonded to both layers. Under the metal roof, the EPDM membrane is bonded to the rigid insulation or physically affixed to the structural purlins.