Tuesday, July 3, 2012

When not to have roof coatings installed

Reflective roof coatings are an economical, long-lasting alternative to re-roofing in many circumstances:

A roof coating is not the right solution in all cases, particularly with failed or failing roof systems. A roof coating is not a substitute for roof replacement when conditions such as widespread wet insulation or loss of roof-system adhesion exist. Coatings might restore the watertight nature for a short time, but factors such as the freezing and thawing of wet insulation, membrane splitting under the coating, wind-uplift damage at unadhered areas, and hail damage of weakened areas still can occur. In these cases, it would be wiser to invest in a completed roof system replacement.

You can use coatings to sustain roofs that have ponding issues or contaminant exposure, but coatings are not viable options for roofs with problems related to surface preparation. If workers cannot prepare surfaces so coatings will adhere properly, they should not apply a coating.

Reputable coating manufacturers can assist you with construction of mock-ups and adhesion testing procedures during project planning to determine appropriate surface-preparation procedures, priming needs, and product selection. These procedures are always prudent if any questions exist about the ability of a coating system to bond to a given roof surface.

Also, based on an anticipated life of 20-25 years for solar panels, coating a roof before installing solar panels actually might increase the risk of requiring the roof to be recoated before the end of the solar panels' useful service life.

Find a Contractor here

Patton Services | (309) 303-3128 | rpatton55@comcast.net | http://www.whiteroofingsystems.com/


  1. It would be a danm good idea to get your roof fixed and touched up a tad before ever installing solar panels. It could prevent any 'natural incident' damage that could happen out of the blue. Like the ever so popular, just breaking off because of a group of shingles wearing away.

    -Sharone Tal
    Solar NJ

  2. Roof coating is a cheaper way of improving our homes.I'm glad I read your post.I learned a lot about roof coating here.

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  3. Owners and facilities managers of industrial or commercial premises have, for many decades, used roof coatings on damaged or leaking roofs as a cost-effective option to extend the roof life. It avoids the massive capital outlay of a completely new roof and has the added bonus, in our more environmentally aware society, that roof coatings can also add an insulating layer to the roof and so improve the energy-efficiency of the building.

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