OSB as vapour barrier / Guides

Interior sheathing wood frame construction
Air and vapour barriers

Interior sheathing as an air and vapour barrier

...vapour barrier. Ideally we'd have no vapour barrier in summer; but short of that we should at least have one that allows as much drying to the interior as ...

Air barriers are essential to a properly functioning wall system
Air and vapour barriers

What is an air barrier?

...as air barriers are drywall, sheathing, insulation, house wrap, even the polyethylene we normally install as a vapour barrier can act as an effective air barrie...

Choosing between OSB or Plywood for house sheathing for Roofs, Walls & Floors.
Wood and organic materials

Which is better, OSB or Plywood for Roofs, Walls & Floors?

...vapour permeability and low water retention, such as mineral fibre." Where to put vapour barriers (CMHC): "Materials that act as vapour barriers (vapo...

Tyvek home wrap left exposed to wind and UV rays
Air and vapour barriers

Weather barriers - what they do and how to install them

...as a vapour barrier, and can be used as such on the interior. [Here's an example of how osb can be used as a vapor barrier] So you need to look at the wall...

Poly vapour barriers in air conditioned houses can cause mold and rot
Healthy indoor air quality

Why you should Never Install Air-Con in a Home with a Vapor Barrier

...barriers in wall assemblies in all but the coldest of climates, or at least change their location within the wall assembly. Putting a plastic vapour bar...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope

...vapour control layer: Commonly known as a 'vapour barrier' but a better term to use would be a vapour retarder. A moisture control barrier should slow diff...

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

...as fallen victim to the claims of safer, easier and 'better' options such as fiberglass or mineral wool batt insulations. These weaknesses are largely baseless ...

Harold Orr, one of the early innovators of high performance Passive home design
Passive solar home design

The principal designer of the house that inspired the global Passivhaus movement reflects on the project that started it all.

...vapour barrier was installed on the inner surface of the inner wall. This meant that all electrical boxes had to be sealed to the air / vapour barrier and the b...

Naugler House: the most energy efficient home in New Brunswick
Efficient home design

New Brunswick's most energy efficient home

...as designed to also serve as the formwork. The outside of the concrete walls has 12’’ of type II EPS. The inside face of the foundation has an exposed plastered...

Installing Siding Correctly
Exterior cladding

How to install siding

...vapour barriers, for example) are now more commonly keeping them wet. We have grown to rely heavily on caulking - often referred to as 'liquid carpenter' - as a...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...as well as a straight-forward downpour, in addition to being as Eco-Friendly as possible in the process. Preventing Water Leaks from Windows & Doors O...

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