What is an Elastomeric Roof Coating?
An Elastomeric Roof Coating is an elastic form of coating that can be applied to different roof types including metal, concrete, bitumen, modified bitumen, BUR, EPDM or PUF roofs. Since these coatings are elastic, they can move along with the roof instead of remaining rigid and can stretch accordingly as well. Elastomeric coatings are used to protect and seal the roofing material, prevent leakage and to make roofs last longer.
What is the Best time to install Elastomeric Roofing Systems?
The most ideal time to coat your roofs is when you apply the coat the moment you observe initial signs of aging. Repairing your roof before more damage is caused will save you the cost of installing a new roof which is far more expensive than installing protective coating.
How to choose the Best Elastomeric Roof Coating?
It can be tricky to decide which elastomeric coating to
choose for your roof top. There are many factors that need to be considered
since every roof is different when it comes ti construction, location, weather
etc. That is why it’s recommended to evaluate the properties mentioned below to
determine which system would best suit your roof.
1.
Elasticity: The ability to stretch or the
elasticity is the most important factor of elastomeric roofing systems. If you
live in a place with drastic temperature changes and fluctuations, it’s advised
to look for coatings that provide more elasticity. This is because more
elasticity means that after being stretched, the coating will return back to
its original size and position without cracks or decay.
2.
Tensile strength: The tensile strength
determines how likely is the product to be able to stick together without
breaking. Companies only report the tensile strength when the product is new
however its reality starts showing once the product contacts exposure and
begins aging. It is advised to look for manufacturers who can provide written
measurements of aged coatings for easy comparison.
3.
Perm Factor: Perm factor determines the
coating’s resistance to moisture. Always ensure that your coating has a lower
perm factor as it means less moisture can pass through the coating.
4.
Moisture gain by weight: this reflects the
ability of your coating to absorb or repel water in order to protect the roof
below. Ensure that the roof you install repels water away from the roof instead
of absorbing it, this might cause deterioration of the roof.
5.
Peel adhesion: Confirm if your roof coating
stays firm and attached or not. This will be possible by carefully observing
the peel adhesion.
6.
Tear resistance: roofs tear apart when a crowd
walks over them or environments change. Hence always make sure your coating is
tear resistant.
7.
Reflectivity: Reflectivity shows the amount of
solar heat that roof’s reflect. The more heat it reflects, the more efficiently
components work and the less damage is caused by UV rays and thermal shocks.
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