Flat Roof Ontario Building Code

According to the ontario building code you should only use corrosion resistant or csa b111 conforming nails for your roofing or re roofing project.

Flat roof ontario building code.

Purpose of roofing 1 roofs shall be protected with roofing including flashing installed to shed rain effectively and prevent water from entering the roof as a result of ice damming. A thermal layer of fibreglass polystyrene or other insulating material should be inserted either above the roof decking the warm roof model which is suitable for homes or permanent residences. The ontario building code slope 9 26 3 1. See here for a look at the roofing section of the 2018 international building code without amendments as adopted by the state of wyoming.

Forming part of sentence 9 26 3 1 1. For low pitch roofs building codes may require larger dimension rafters. The nails should at least be 12 mm in length. National building code of canada 2005.

Roofing types and slope limits. Unfortunately many of the older roofs are flat and create pooling on the surface that cancels any warranties offered by manufacturers for roofing materials. The ontario building code purpose of roofing 9 26 1 1. Below are the main highlights from the code set to help you assess whether your roofing contractor is doing their job properly.

At that time the ontario building code stated that flat roofs must have a positive roof slope of 1 4 for every 4 run towards drains or draining edges. Hopefully a roofing contractor never makes a mistake with nails. Slope 1 except as provided in sentences 2 and 3 the slopes on which roof coverings may be applied shall conform to table 9 26 3 1. 1 nails nails used for roofing shall be corrosion resistant roofing or shingle nails conforming to csa b111 wire nails spikes and staples.

Thermoplastic or elastomeric are the most effective and should extend up adjacent walls at least 150mm from the roof surface. To view actual current including amendments us state building codes plumbing codes fire codes etc see upcodes an excellent little start up which we wish all the best. Highlights of the ontario building code. However many toronto area homes were constructed with completely flat roofs using built up roofing systems which forgives ponding water on the surface.

2 for the purpose of sentence 1 roofs shall include platforms that effectively serve as roofs with respect to accumulation or drainage of precipitation. Nails shall have sufficient length to penetrate through or 12 mm into roof sheathing. Or else on the interior of the building just.