Homeowner's Knowledgebase

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July 5, 2017


Factors Effecting Roof Lifespan


Factors That Impact Your Roof’s Lifespan

What Material Is Your Roof Made out of?

Your roof’s material is a huge factor in its lifespan. If you are having your roof placed or looking to buy a home, make sure to find out the material of the roof and its current condition. Although different roofing materials have their own expected lifespan, this number can be lengthened or shortened if the following factors are not accounted for.


Next to material, climate is arguably the next most important factor in determining the lifespan of your roof. For example, in countries like Canada, where the climate can be quite drastic, this can shorten your roof’s lifespan by 20%.

Roof Colour

Darker roofs absorb more heat opposed to their lighter counterparts. Increased heat absorption can lead to the breaking and melting of shingles. This equates to more repairs to keep the roof in suitable condition and to avoid having to tackle a roof replacement.

cool roof is a great way to counter the harmful effects of the sun’s rays on your home.

Roof Pitch

A roof’s pitch varies based on its geographical location or just by the builder’s design style. Roof’s with greater pitches tend to have longer life expectancies. They promote precipitation run-off and are less prone to issues such as damming water and leaks.

Roof Ventilation

Without proper ventilation, moisture and heat will accumulate in the attic (directly under the roof) and can damage your roof’s studs, insulation and distort your roofing shingles. Heat trapped in your attic also raises the overall temperature in your home causing your air conditioning unit and appliances to work harder to maintain the appropriate temperature. This will lead to a higher energy bill.

In the winter, poor roof ventilation can lead to issues such as the formation of ice dams.