Silicone washes off in the rain you can always tell that someone is used to working with acrylic coatings when they say this.
Silicone roof failure.
Adhesive failure telegraphing or blistering.
Then the surface uses rain to act as a cleaner for it.
This is the most common misleading and incorrect term associated with silicone roof coatings silicones.
Another risk from using a waterproof material such as silicone to coat your commercial roof is when the surface gets wet it tends to be more slippery than a typical roof system.
Absolutely they do work but they must be professionally applied by an experienced and thorough commercial roofing contractor.
Here are several common problems of silicone roof coatings.
The nature of a silicone roof coating is that it will hold the dirt that it picks up each day.
In more arid climates.
This gradual build up makes the roof more susceptible to heat from the sun which negatively impacts cooling costs and internal building temperatures.
Silicone roof coatings are waterproof.
Replacing the roof is not an inexpensive proposition.
The roof will lose its reflectiveness over time.
Acrylic coatings are known to wash off in rain.
Silicone coatings easily attract dirt and other airborne dust particles.
Roofing systems are waterproof due to the type of membranes or barriers that are underneath the silicone coating.
Lack of abrasion and tear resistance while it does have some advantages silicone is not a particularly durable.
Now apply a diluted solution of gacowash 1 part gacowash and 9 parts water in an arc pattern with a hudson type garden sprayer and let it soak for 10 15 minutes.
Kyle hoffman owner of roofing more in herndon va can spot a failing roof immediately.
Beware of products that claim a primer is not needed.
To clean a silicone roof coating first get rid of all the accumulated deposits of dirt leaves and other debris and wet the surface with water.
Primerless applications consistently have failed in ponding water areas.
List of the cons of a silicone roof coating.
Loss of reflective properties.
A new shingle roof will run anywhere from 350 to 500 per square depending on the market.
A tendency to attract dirt silicone coated roofs can be a magnet for air borne dust and dirt.
This can be an added risk for personnel tending to units skylight roofing issues on the roof.
Excessive granular loss seal failure and premature curling he says signal a roof in decline.
If you apply an acrylic coating and it rains within a couple hours you ll find your material washed off the roof and in the parking lot before long.
In fact silicone roof coatings have one of the highest vapor permeability rates in the commercial roofing industry often because it is incorrectly applied.
Over time this accumulation of dirt and dust on the roof surface causes the system to slowly lose its reflective properties.
Silicone roof coatings start to absorb water over time leading to saturation points on commercial roofs.
