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Exterior Pro Materials
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Contractor Tips & Trade

4 articles in this category from the Pro Materials team: practical guides and product insights for Ontario's building trade.

Installation guides for the parts of the wall that are easy to get wrong on site: eave venting, the weather barrier and skirting. Each one works from the code clause or the manufacturer's rule rather than from habit.

Where to start

  1. 1

    Soffit and Fascia Installation: Vinyl vs aluminum, net free air by profile, and sizing eave venting to the Ontario Building Code.

  2. 2

    House Wrap in Ontario: Perm ratings, the code clauses it has to meet, UV exposure windows, roll coverage and flashing.

  3. 3

    Gutter Guards in Ontario: Which guards stay warranted under pine trees, drainage per foot, and new vs existing gutters.

  4. 4

    Vinyl Skirting: Panel counts by perimeter and height, the crawl space vent rule, and where the vents go.

Daniel OseiSeptember 2, 202618 min read

House Wrap in Ontario: The One Number That Decides Which Side of the Wall It Goes On

The envelope shelf holds products rated from 0.05 to 59 perms, a spread of more than a thousand to one, and that single number decides whether a material belongs on the warm face of the wall or the cold one. This guide sorts every house wrap, flashing and foam board we stock by permeance, sets each against the Ontario Building Code clause it has to satisfy, and works the roll count out on a real Newmarket re-clad.

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