Elastomeric coating is one of the best exterior products available. It help extend the life of stucco, concrete and even deteriorated wood. Things to watch out for:
It has to be applied properly. This means 2 coats at 100 to 125 sq ft per gallon. This is where most of the cheating occurs. The product looks great after 1 coat, but you need the second coat in order to get the benefit of the elastomeric properties. Please see our web page for more details. We have been applying elastomeric coatings for over 15 years now, and have noticed that most painters don't apply it properly.
If there is moisture behind the wall, the coating will fail. The situations where this usually happing are a) block walls where moisture gets into the wall through damaged flashing, b) high moisture content on interior with improper ventilation or seals, c) snow pilled up agains wall, then melting and water working its way up the wall and peeling the coating, d) busted water line in interior of wall.
Rotten wood, deteriorated stucco, deteriorated mortar joints. If the substrate is not sound, there is nothing that will adhere to it and failure will eventually occur. To prevent this make sure the substrate is sound before painting.
If these items are taken into consideration and rectified, you will get a product that will last 2-3 times longer than a conventional paint job. Visit our web page for more info.