Here are the requirements for sheathing thickness and nailing (plus patterns) for wall and roof sheathing. Required thickness of wall sheathing 40 cm (16") OC 60 cm (24") OC Fibreboard (insulated) 9.5 mm (3/8") 11.1 mm (7/16") Gypsum sheathing 9.5 mm (3/8") 12.7 (1/2") Lumber…
For many homeowners, the construction of a deck is the ideal do-it-yourself project: but sometimes, decks aren’t as simple as they look. Our building inspectors have gathered some pointers and tips to help homeowners and contractors build better decks. Throughout this guide it is assumed…
Lintels (often incorrectly called "headers") are the built-up horizontal elements above openings in load-bearing walls, usually framed over spaces that will later be occupied by windows or doors. They are thus almost always located at the exterior of a building. Lintels are essentially two (or…
What height does a guard have to be? Let’s start at the basics. A guard is a horizontal object – usually wood, sometimes steel – that is intended to prevent someone from falling from a height when there’s an open space. So you’ll see guards…
Although there are all kinds of styles of roofing styles and subystems (mansard, gambrel, gable, gable dormer, barn dormer), in the end, when it comes to most residential roofs, there are just two kinds of systems: rafters and trusses. The two systems have similarities –…