Side by side
| Acrylic elastomeric | Silicone | |
|---|---|---|
| Price | Lower | Higher |
| Standing water | Wears faster where water sits | Handles ponding well |
| Stays clean and white | Better | Holds more dust and pollen |
| Future recoats | Acrylic or silicone | Silicone only |
Acrylic elastomeric
The standard white coating on most foam roofs. It's reflective, flexible and good value on roofs that drain within a day or two. It needs warm, dry weather to cure.
Silicone
The better choice where water stands — often near canales, in corners, or on flat portal and addition roofs with little slope. It costs more and holds dust, and once a roof is silicone it stays silicone.
Or fix the water
Sometimes the smarter move is to build up a low spot with foam, clear or reset a canale, and stay with acrylic. We'll show you where water sits and price it both ways.
Cottonwood fluff
In late spring, cottonwood seed fluff collects on roofs and in canales. It doesn't harm the coating directly, but it traps moisture and blocks drainage. See cottonwood season.
Not sure which you need? Call (505) 448-8513.
Common questions
Can silicone go over acrylic?
Yes, with proper cleaning and sometimes a primer.
Which lasts longer?
On ponding roofs, usually silicone. On well-drained roofs, a thick acrylic coat holds up well too.