Vapor barrier paint / Guides

Vapor retarder latex primer instead of polyethylene sheet
Air and vapour barriers

Replacing polyethylene vapour barriers with latex paint vapor control

...paint or vapor semi-permeable interior finishes. The following main principles are recommended: Avoid vapor barriers where vapor retarders will work, avoid vapor retarders where vapor permeable materials will work. Avoid the installation of a vapor barrier on both sides of the wall assembly. Avoid using poly,...

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

...Vapor Barrier + Air-Con = Damp Moldy Walls So here's a little known fact that most HVAC installers won't tell a potential new client for central air; Polyethylene vapor barriers in combination with air conditioning in homes can rot walls because of the condensation they may cause. This is why if you have a newer home...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...Vapor barriers on basement insulation will rot your walls " We put vapour barriers in basement wall assemblies to keep moisture from getting into them, as if they didn't already contain thousands of litres of water. Polyethylene won't keep foundations dry, they are already soaking wet. All it will do is prevent the t...

How to Vent Roofs - the Methods, Vent Types, Fans
Walls and Roofs

Why Roofs need to be ventilated and how to ventilate a roof properly

...vapor barrier or vapor retarder in cold climates and temperate climates, and the right amount of insulation for your climate zone . Exterior siding and roofs should be viewed as a rainscreen just keeping precipitation away from the control layers of the wall – your thermal, air and vapor barriers. See here how to insta...

Installing Siding Correctly
Exterior cladding

How to install siding

...vapor barrier) . A well-ventilated air space between sheathing and cladding is an important part of the strategy needed to allow walls to shed moisture in all seasons and conditions. Drainage planes (building paper, house wrap, etc.) allow any moisture that does accumulate behind siding a chance to drain away harmles...

Which wood is best for framing timber frame construction in homes?
Wall assemblies - new construction

Lumber choices for wood frame construction - choosing timber for framing & building homes

...paint are applied, to both sides, so your job is simply to cut the siding to length, paint the ends, and install it. A reputable company will give your siding a warranty up around 15 years, and potentially up to 30 years if you apply a coat of paint within that first 15 years. If you prefer to paint your wood siding ...

Condensation on windows in our homes - why is it there? - how to stop it?
Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...painting large areas of wall then all that has to dry, and this moisture goes straight into the interior air unless the space is well ventilated. Be sure to choose zero VOC paints , or it's even easy to make VOC free paint, find out how here , and choose nice weather for internal painting so the windows can be flung wi...

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

...Barriers in High Performance Homes - EcoHome Guide Discover the Aerobarrier Home & Attic Air Sealing Spray - EcoHome Guide Replacing Polyethylene Vapor Barriers with Paint - EcoHome Guide

Painting with zero VOC paint from Benjamin Moore
Paints, finishes and natural coatings

Choosing safe paints

...paints, replacing them with solvent-free or water-based paints. The move towards safe paint has led to a noticeable improvement in indoor air quality since the mid-seventies, and better even in the last decade. But paints based on petrochemical solvents still represent over half the paints on the market. Using natura...

Exterior damp proofing and drainage mat to protect basements from wate
Insulation and soundproofing

Best practices for basement insulation in new home construction

...barrier primer © Benjamin Moore Interior gypsum board: Latex paint ( or vapour retarder primer ) is recomended as an interior vapour control layer below grade. It is most important to not include a polyethylene vapour barrier or other vapour impermeable materials that prevent walls from drying. 6 mil poly v...