I couldn’t believe it about 10 or 15 years ago they came out with another fabulous product that created problems for my home. Elastomeric paint is so good, that it can create problems because it seals what ever you paint with a rubber like coating. I wasn’t the only one to have problems with this product.
I built a two-story room addition onto our home and used this type of paint without any problems at all. I painted the fascia board before I installed it with a oil based alkaloid primer and then painted it with elastomeric paint. By painting the entire piece of wood, before installing it, I had sealed it correctly. This worked out in my favor and this is the only way that I installed new fascia board today.
It wasn’t until I painted the rest of the home with elastomeric paint that I started to have a problem. When I built the room addition, I installed the metal flashing and roofing materials properly, that wasn’t the case on the existing roof of our home, at the single-story level.
I didn’t realize it yet, but while I was painting the fascia board, the roof edge metal wasn’t installed properly in a couple of spots around the bottom of the roof. Which is where most of the water drains off of the roof, because the roof edge metal wasn’t installed properly and the top of the fascia board wasn’t painted at all. The top of the fascia board started to absorb water as it dripped off of the roof.
The elastomeric paint did an excellent job keeping the moisture inside of the wood, where some latex paints would have allowed the moisture to escape through it. Eventually the fascia board rotted away and needed to be replaced.
I never had any problems with the second-story fascia board that was installed and painted correctly. If you’re really looking for an excellent paint for your fascia board, you can use elastomeric paint if you want to. I doubt if I will ever use this type of paint again, because of the problems I had with it in the past.
I know some painting professionals who won’t use anything but elastomeric paint, but this stuff is truly too good of a painting product and I’ve seen other problems with it also. Most of the problems associated with this paint are due to incorrect application of the paint or poor construction methods from other contractors.
Elastomeric paint is truly a wonderful product, but it’s almost too good to use unless the home is built correctly in the paint is applied over the entire surface of the product with out leaving any small holes or cracks exposed.