Concrete Roof Waterproofing | PermaBest Flexible Membrane for Concrete

Concrete Roof Waterproofing: Quick Answers

• Concrete naturally cracks over time, and PermaBest's fiber-reinforced flexible membrane bridges those cracks while staying fully bonded to the deck.
• PermaBest waterproofs concrete roofs and decks without tear-off, saving significant cost compared with membrane replacement or re-decking.
• PermaBest stays flexible after curing, so it moves with the concrete through thermal expansion and structural settling without splitting.
• PermaBest bonds directly to prepared concrete, forming a seamless waterproof film over the entire surface including penetrations and edges.
• A PermaBest concrete roof system is backed by a 10, 15, or 20 year renewable warranty.

Frequently Asked Questions

How does PermaBest handle cracks in concrete roofs?

PermaBest's fiber-reinforced membrane bridges hairline cracks and stays flexible after curing, so it moves with the concrete as it expands, contracts, and settles — without splitting or debonding.

Is PermaBest cheaper than replacing a concrete roof deck?

Yes, substantially. PermaBest is applied directly over the prepared existing deck, avoiding demolition, structural work, and disposal costs that come with re-decking or membrane replacement.

Can PermaBest be used on concrete decks and plazas?

Yes. PermaBest provides a fiber-reinforced, flexible waterproof membrane for concrete roofs and decks, sealing the surface, penetrations, and edge details as one continuous film.

Does new concrete need to cure before coating?

Yes. Concrete should be fully cured and properly prepared before PermaBest is applied so the membrane achieves a full, permanent bond. A PermaBest assessment confirms surface readiness.

How long does PermaBest last on a concrete roof?

PermaBest concrete roof systems are warranted for 10, 15, or 20 years depending on the specification, and can be recoated at the end of each cycle to extend waterproof protection indefinitely.