Have you thought of which ventilation solution you’ll utilize for your Mississauga project? You should because the type of ventilation used on a flat roof highly determines the lifespan of the entire roofing system. As you may know, the heat generated in a home’s living spaces affects the thermal temperature of the roof system. If the hot, rising air isn’t allowed to exit the building, it will result in condensation, dampness, and long-term damage. This is why the ventilation system on a flat roof is crucial. As such, you ought to take some time to understand everything that goes into selecting the right ventilation solution. Consider the following pointers:
Ventilating a flat roof
With sufficient insulation, warmer, rising air from the living areas can escape outside without compromising a flat roof’s structural integrity. This can help keep the roofing system’s temperature at a similar level with that of the outdoor temperature, reducing the risk of condensation. So, how do flat roofs get vented?
One way to vent a flat roofing system is to create a roof plenum 2-3 feet above the roof’s ceiling insulation. Also known as a ‘coft loft’, the plenum can also be used as a passable crawl area. Once the plenum is in place, it gets fitted with a vent fan or a series of vent towers. Another approach when creating a ventilation low-slope roof is to install 2×4’s across the roof rafters.
The rafters are then placed 16” on the centre across (at right angles to) the ceiling joists and below the sheathing. This arrangement creates a high air space of about 1 1/2” above the rafters, permeating the flow of air under the roof decking. Even so, the roofer must create an outside air inlet using either a roof overhang or soffit, for this ventilation to work optimally. Read more- https://coverallroofing.ca/flat-roofing-toronto/toronto-flat-roof-ventilation-guide-essential-things-you-need-to-know/
