Silicone Vs Urethane Roof Coatings

Silicone also holds dirt on the surface and loses reflectivity over time.

Silicone vs urethane roof coatings.

Leading urethanes such as humiseal 1a33 offer protection to 125ºc. Building specifications often dictate that a sealant meet particular testing standards. Choose providers who have an extensive amount of experience with silicone roof coatings to ensure that your investment will receive a maximum level of value. Silicone roof coatings provide many benefits that other coatings cannot.

However our experience and the research proves otherwise. They are most commonly used in sprayed in place polyurethane foam insulation and other commercial roofing substrates. Moreover you can choose between aliphatic and. Astm c920 federal tt s 001543 astm d 5893.

Our team sees silicone roof coatings lose their efficacy on a regular basis. Since they are your building s first line of defense against the sun this is an alarming trait. They are most commonly used for sprayed in place polyurethane foam insulation as well as other commercial roofing substrates including modified bitumen single ply epdm smooth. You might hear some contractors refer to a silicone roof coating as a cool roof because of is reflective capabilities.

There is no doubt urethanes are among the strongest most durable coatings on the market today. The more common tests applied to silicones and urethane sealants are. A urethane roof coating system with an aromatic base and an aliphatic top coat is durable stays cleaner and is more resistant to ponding water than an acrylic coating. Silicone conformal coatings on the other hand offer protection of 200ºc or higher.

One major concern with polyurethane roof coatings is their poor uv resistance which causes them to turn yellow and chalk when exposed to uv rays. As one may guess opinions aside there are pros and cons that exist for both silicone and acrylic roof coatings. Aliphaltic coatings are more expensive but are uv stable hold color well and stay cleaner than most other coatings. The testing standards required may vary by sealant chemistry silicone or urethane.

This is typical with conformal coatings as silicones typically offer the best protection temperature wise. They also do well as cool roofs because they. A silicone roof coating can reduce your energy expenses. They are now used as coating applications over a variety of existing roof membranes.

More than just an opinion this idea has proliferated the roof coatings industry for nearly a decade. Polyurethane coatings were initially developed to be applied over sprayed in place foam roofs. Silicone roof coatings last 50 years. Urethane roof coatings are a fluid applied roofing system.

Urethane roof coatings more commonly known as polyurethane roof coatings are among the strongest and most durable elastomeric coatings available in the industry.