Very Poor Results From Heng's Roof Coating
Heng's rubber roof coating is the most recommended roof coating in this forum, and has very good reviews online. So I decided to try it for my aging rubber roof (16 years) which was still intact but s...
Forum Discussion
Sorry I don’t see how you can completely and correctly apply Heng’s in a single short day. I took three days to apply ours. Weather was clear and dry and daily temperatures were 80 to 85 degrees.
Day 1
Removed all our MaxAir vent covers and cleaned all vents.
Swept roof very well.
Mixed a strong solution of powered Tide detergent and warm water and scrubbed a 3’ X 3’ section with a medium stiff scrub brush, then rinsed with lots of water.
Once entire roof was washed I rinsed again, and allowed to dry overnight.
Day 2
Waited until about 10:00am to start edging around all vents, AC, and bath skylight.
Used a short nap roller to apply, worked on well and a thin coat. Not sure if I needed to open second gallon to finish first coat on day one.
Allowed first coat to dry overnight.
Day 3
Applied second coat edged the entire edge of roof again with brush, then rolled on second coat again. This was allowed to dry overnight.
I think using the acetone was likely a mistake, as Heng’s is an water based product.
Ours is doing very well, as I used just under 2 gallons, I am considering adding two more coats this summer.
Day 1
Removed all our MaxAir vent covers and cleaned all vents.
Swept roof very well.
Mixed a strong solution of powered Tide detergent and warm water and scrubbed a 3’ X 3’ section with a medium stiff scrub brush, then rinsed with lots of water.
Once entire roof was washed I rinsed again, and allowed to dry overnight.
Day 2
Waited until about 10:00am to start edging around all vents, AC, and bath skylight.
Used a short nap roller to apply, worked on well and a thin coat. Not sure if I needed to open second gallon to finish first coat on day one.
Allowed first coat to dry overnight.
Day 3
Applied second coat edged the entire edge of roof again with brush, then rolled on second coat again. This was allowed to dry overnight.
I think using the acetone was likely a mistake, as Heng’s is an water based product.
Ours is doing very well, as I used just under 2 gallons, I am considering adding two more coats this summer.
