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Roofing Ventilation

Proper Roof Ventilation Promotes Health

Whether you are building, replacing or upgrading a roofing system, proper ventilation will maximize the life of your roofing materials and maintain the integrity of your roof structure over the long run.

Lack of ventilation on a roof will lead to a build-up of moisture that will cause damage from the inside out. Preliminary indications of moisture problems for roofing systems may include the membrane losing attachment and blistering. If the damage progresses, rafters will rot, fasteners will rust, sheeting will saturate, and the insulation of your roof will be ruined. From there, it’s a slippery slope downhill to water damaged ceilings and walls and the growth of mold which can lead to serious health issues.

Obviously, the first course of action is to keep moisture out of the roofing system. Critical elements in this effort are regular inspections that include checks of seams, flashings and any penetrations. Exterior checks are important because in many cases, problems with installation or materials can lead to water entering a roofing system from the outside.

Preventive maintenance may seem like an extra cost up front, but the rewards are abundant. A routine check can extend the roof’s lifespan of 12 to 25 years by 50 to 100 percent. It is well worth the investment. On our visits, our experienced professionals will first conduct a visual exam in the fall and early spring and several checks to make sure that you roof is in good condition. Contact Tony William Roofing and Exteriors today to speak with one of our roofing experts. (403) 454-1366


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Serving Calgary for 10 Years

2018 marks a special year for our team at Tony William Roofing & Exteriors. It's our 10th year providing the good people of Calgary the best in designer exterior renovations. Thank you Calgary! We're looking forward to the next 10 years in this wonderful city!


Tony William Certified. All of our installations come with the manufacturer’s product warranty and the Tony William installation guarantee. Rest assured that you will get quality that lasts.


Tony William Roofing & Exteriors is owned and managed by Steven and Bridget Rogers. The company name is an homage to Steven’s two grandfathers: Tony and William.


We stand by our work. Period. If there are any problems with our initial installation, give us a call and we will fix it. We are not happy until you are happy.