Tag Archives: roofs

Ontario winery roof impresses ARMA

An Ontario project received an honourable mention at the Asphalt Roofing Manufacturers Association’s (ARMA’s) annual Quality Asphalt Roofing Case-study (QARC) Awards. Al Anthony Roofing of Consecon, Ont., was recognized for its church roof installation at Closson Chase Winery in the neighbouring village of Hillier in Prince Edward County.

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Preventing ice dams on steep-sloped roofs

Without a properly engineered ventilation system on the roof, ice-damming can threaten a building’s health. An ice dam is a ridge of ice forming at the eaves of a roof, cricket, or valley that prevents melting snow and water from draining off. The water backing up behind this obstruction can refreeze, creating an ice dam. These dams can be the cause of roof failures; once significant amounts of moisture enter the building, there is a high probability mould and other negative impacts can occur.

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Designing vegetated roofing for wind forces

From a purely economic perspective, the positive impact of a vegetative ‘green’ roofing assembly is measured in the long term—40 years or more. This means ensuring its performance and safety over an extended period is crucial. A green roof protects the underlying waterproofing membrane from the elements. Combined with a higher-quality membrane necessary to resist soil and plant forces, the result should be a longer roof lifecycle decades beyond a conventional system’s 20 to 25 years.

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Specifying service to ensure roof performance

By its nature, every roof is a unique and complex waterproofing system whose performance depends on design appropriateness, material quality, and installer craftsmanship. All three of these must be present for an assembly to achieve its anticipated lifespan. As a construction activity, roofing requires the same high level of diligence as other construction trades, such as mechanical and electrical systems.

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