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Preventing Commercial Roofing Disasters

Commercial buildings are more complicated than residential roofing and so the cost is usually higher for repairs and replacements.

Oftentimes, contractors bid for jobs at lower prices to compete for the contract, which can end up resulting in big losses for the customer.

Here’s a recent project gone wrong that highlights the importance of using a good roofing contractor!

Last year we urgently repaired a commercial building roof near Lloydminster AB, which was a job previously done by another company.

Usually it is not possible to save money from PVC mechanically fastened roof systems; however this particular contractor cut significant dollars at the cost of quality.

They pocketed money by not installing 5 ft. sheets of perimeter flashings on the outer roof edges and using ¼ of the fasteners required.

This resulted in serious wind damage. The high wind pressure lifted the roof up.

Also, reusing old metal caps on the edges that detached from the walls caused the roof to blow into the wind.

The minute the fasteners pulled out, the roof self destructed in minutes.

The roofing contractor got involved in a lawsuit to cover damages, a huge waste of time and money for the owner.

There are many similar horror stories, so beware of very low bidders!

This goes double for Alberta commercial roofing projects because we live in a very windy place.

We recommend you always consider at least 3 bids before assigning a contractor to your project.

Is there black mold on your Edmonton roof?

Today’s biggest concern among roofing contractors in Edmonton is black mold on your roof.

With health being a number one priority in everyone’s life, it really is a serious issue. With flat roofs (Tar & gravel), there is a higher risk of black mold being present, whether in the walls or in the insulation. If your home was not built correctly right from the beginning with proper venting, then you need an expert to inspect your house as soon as possible.

In our experience it seems that half the houses designed with flat roofs in Edmonton, most from over 30 years ago, were vented incorrectly. Houses vented correctly usually have a continuous aluminum ridge vent running along the whole length of the peak. With this continuous vent is also a vented soffit. This being said, if you have a split or a hole on the roof, a professional roofing contractor will simply patch the roof, and if properly vented everything will dry up soon in a natural state.

Roofs that aren’t properly vented will end up trapping moisture and hence will turn into black mold. I am not an expert on black mold, but a proper building inspector or in particular a flat roof inspector should be able to give you the correct advice. Any credible roofing contractor in Edmonton should be able to work with a qualified inspector, bearing in mind that there are roofing contractors that won’t work with any roofing inspectors.

My best personal advice about a roofing contractor that won’t work with a qualified inspector is to take this as a red flag. We are here to correct, fix, and give you the proper service that you are paying for. That being said, I don’t want to scare or panic anyone just because a leak has developed.

In over the 30 years of roofing experience, I find it is usually the roofs that have been ignored for lack of maintenance that pose the most risk.