Types of Coating
Silicone: an Eco-friendly system made from a naturally occurring organic substance, silicone (Si on the periodic table). Silicone has been proven for over 7 decades to provide a water proof system that out lasts some other systems by up to 10 times and Silicone is unaffected by long-term UV exposure, ponding water and temperature extremes. Also because it is naturally occurring silicone is environmentally friendly with low VOC (meaning low in toxic chemicals and smells).
- Acrylic: was originally developed as a paint in the 1950’s, but since has been modified to be more elastic, resistant to UV and repel water. Acrylic has been refined and used as a roofing product with great success since the late 1970’s However, it is a water soluble product and is better used on sloped roofs versus silicone with is an incredible solution for flat/low slope roofs that are more likely to have ponding water.
- Urethane: There are two main types of urethane coatings: aliphatic and aromatic. Aliphatic urethane coatings are UV stable, hold color longer, resist dirt pick-up, and are typically used as a top coat. Aromatic urethane coatings are not quite as UV stable, less expensive, and typically used as a base coat. Urethane roof coatings form a highly durable, flexible, and seamless membrane layer that can withstand the daily expansion and contraction of the roof structure, and resist ponding water. Urethane coatings are more impact resistant than any other coatings, making it ideal for use in high-traffic areas. (as taken directly from American Weather Star product sheets)