Why silicone works here
- Resists breakdown from water that sits for days
- Excellent resistance to high-altitude UV
- Many products cure by moisture and tolerate cooler temperatures than acrylics
Trade-offs
Cost
Silicone usually costs more per square foot than acrylic.
Future recoats
Very little sticks to silicone except more silicone.
Dirt pickup
Silicone can hold dust and pollen, dulling its whiteness.
Slippery
Use care walking on it, especially with frost or snow.
Where it fits
Roofs with ponding near scuppers and drains, low corners where snow drifts and melts slowly, and roofs that need coating late in the season. See snow on flat roofs.
Call (505) 257-2289 to talk through silicone vs acrylic for your roof.
Common questions
Can silicone be applied in fall?
Some silicones can be applied at cooler temperatures than acrylics, which can extend the season. Weather still has to be dry.
Will silicone fix a roof that ponds?
It tolerates ponding but doesn't remove it. Fixing slope or drains is still a good idea.