In general, every roof must be ventilated The section of Code governing ventilation of roofing areas (attics) is – unlike most of Code - pretty simple. Code (section 9.19.1.2 for those of you who want to check our work) requires that ventilation areas of either…
The following outlines some of the dimensional requirements for stairs within a single-family home, or a single-family home with a basement suite. For non-residential structures, it’s best to call our office for guidance, as a number of factors come into play. Changes to note: NBC 2015…
Snow load calculations are part of a lot of structural building Code calculations. But what are the snow loads in our region? The National Building Code has a fairly simple calculation to figure out a region's snow load, based on snow weight and rainfall for…
Mechanical ventilation systems have long been required in Canadian buildings, including houses. There are requirements for these systems - usually heat recovery ventilators - in terms of how much air they provide to each area. Effective immediately, our office is requiring ventilation installers to certify…
A couple of times a year, our office receives a call from a contractor trying to figure out what grade of shingle should be used on the side of a house. One of the reasons for this lies in the fact that some installers have…