Tyvek / Guides

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

What is an air barrier?

...Tyvek and Typar. While its intent is largely as a breathable membrane to protect against water penetration behind cladding, it can be an effective air barrier if installed as such. Water vapor can pass through easily, but air cannot. The problem with it being relied upon as an air barrier is that it is rarely if ever...

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

New Brunswick's most energy efficient home is Passive House designed

...Tyvek® water-resistive barrier in rain screen Passive House Windows : Internorm ThermoPassiv sourced through Northwin Windows Thermolec 2kw Thermo Air resistance heater unit Zehnder Comfoair 200 HRV Naugler House annual heating cost [2012-2013] kWh used 690.2 $/Month 6.40 Total $ 76.82 Heating cos...

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

Choosing the right house wrap / weather barrier, which is best?

A technical guide to understanding the role weather barriers and rainscreens play in a wall, choosing the right products and installation tips for optimum performance. They're officially known as water-resistive barriers or WRBs, sometimes weather-resistive barriers, but in practical terms they are more commonly cal...