Airtight & Weatherproof

Efficient, durable and airtight wall assemblies

Guide

Blower Door Tests - What's the Cost & Who Does Them?

What is a blower door test? What's the cost? How do you find a company to do one?

A blower door test identifies air leakage in a home; you can find and fix those air leaks for a more airtight, mold & rot-free and energy-efficient sustainable green home.… What is a blower door test? Blower door tests are becoming part of many State and Provincial mandatory building codes - the new BC Energy Step Cod…

Aerobarrier home and attic air-sealing spray

Aerobarrier is a non-toxic acrylic spray that quickly and affordably seals air leaks in attics and homes… We cannot overstate the importance of airtightness in homes and attic rooms. A proper air barrier reduces heat loss in winter, overheating in summer, and prevents moisture build up in walls which can lead to mould…

Tyvek home wrap left exposed to wind and UV rays

Weather barriers - what they do and how to install them

Weather barriers (or more accurately water-resistive barriers) keep bulk water away from vulnerable building components and allow walls to dry at the same time.… A technical guide to understanding the role weather barriers and rainscreens play in a wall, choosing the right products and installation tips for optimum pe…

Problem areas of air leakage in a home and blower door test being cond

Balancing air pressure in a house: "Your house sucks." "Oh yeah? your house blows!"

Odds are that at any given time the air pressure in your house is out of balance and either drawing air in or forcing it out. Learn the causes, the effects and the solutions for air leakage.… We go on incessantly here about the importance of air barriers in home construction to reduce air leakage, but no matter how ha…

Exterior air barrier membrane © Ecohome

How to install an air barrier for reduced air leakage

Air leakage is responsible for a large portion of the heat loss and moisture damage in walls.… Watch more videos The Ecohome Demo House has a vapour permeable exterior air barrier and with an ACH rate of .69 is many times more airtight than the average new home. Air leakage can be responsible for up to 1/3 of the tot…

Interior sheathing as air & vapor barriers in wood frame construction

Interior sheathing as an air and vapour or vapor barrier

3/4 inch OSB sheathing on the interior can be an excellent air barrier and a great vapour barrier as well.… There has been a steady evolution in the way we build homes over the last couple of decades, and the old standby wall recipe of 2x6s, fiberglass insulation and polyethylene doesn't measure up anymore with buildi…

Air barriers are essential to a properly functioning wall system

What is an air barrier?

Approximately 100 times more water vapour is carried into our walls by air leakage than is carried by vapour diffusion. That makes air barriers 100 times more important than vapour barriers, so why is no one talking about them?… Approximately 100 times more water vapor is carried into our walls by air leakage than is …

Vapor retarder latex primer instead of polyethylene sheet

Replacing polyethylene vapour barriers with latex paint vapor control

Vapor retarder latex based primers can be twice as effective as the requirements laid out in many building codes regarding vapor barriers requirements.… Vapor Barriers in walls, why polyethylene can be problematic It would probably surprise many home builders to hear what really causes moisture accumulation in walls, …

The difference between air barriers and vapour barriers

The Difference between air barriers and vapor barriers

Can a house be too airtight? No it cannot. The difference between air barriers and vapour barriers is often confused. Also confused, is which one is more important.… The difference between air barriers and vapor barriers The job of a vapor barrier is to prevent vapor diffusion, and the job of an air barrier is to stop…

What is a Free Home Energy Audit Canada?

Free home energy audits in Canada

Take advantage of green home energy-efficiency renovation tax credits & incentives to help improve home performance. It starts with a free home energy audit, find out here what that is & how to identify which home improvements save the most money.… What is the free home energy audit? An energy audit is a home inspecti…

Top Tips for Getting a House Ready for Winter

Winter preparation for your home - are you ready for the cold?

Tips for preparing your house for winter: how to make your house more efficient to save money on heating, more durable to save disasters & maintenance issues & more comfortable to keep the family toasty through the winter..… Top Tips for preparing a home for winter Extremely low temperatures over winter can test your …

Advice

Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does the plastic vapor barrier go??
Posted by Les Poldark Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

Mitigation of attic moisture in 1941 home
Posted by Rachel Katz June 8, 2019, 4:06 p.m. Air and vapour barriers 0 Responses

Can you also use a vapour retarder paint on the ceiling instead of using a poly vapour barrier?
Posted by Anwas Qwelten June 8, 2019, 3:56 p.m. Air and vapour barriers 2 Responses

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling.
Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

Do you have a diagram showing effect of winds on the pressure inside the house? If wind is blowing from the south, is a vacumn created inside the south or north wall of the house?
Posted by Bryan Bargen June 8, 2018, 5:20 p.m. Air and vapour barriers 1 Responses

Insulating walkout basement made of CMU Wall with a rockwool.
Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

Metal roof assembly
Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

How to remove moisture/condensation from basement walls
Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

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