Vapor retarder paint/ Green Building & Sustainable Home Renovation Information & Advice

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

Replacing polyethylene vapour barriers with latex paint vapor control

...paintorvaporsemi-permeable interior finishes. The following main principles are recommended: Avoidvaporbarriers wherevaporretarders will work, avoidvaporretarders wherevaporpermeable materials will work. Avoid the installation of avaporbarrier 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

...vaporbarrier use and placement for walls in the future, or the adoption ofpaint-onvaporretarderprimers - Resulting in better built housing more suited to our climate and lifestyle. To learn more about building science basics, watch the How to Frame a LEED Platinum Wall Assembly Video Guide on t he EcoHome YouTube ...

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

Choosing safe paints

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

Interior sheathing as air & vapor barriers in wood frame construction
Air and vapour barriers

Interior sheathing as an air and vapour or vapor barrier

...vaporate and eventually become brittle and peel. The most durable tapes on the market contain no such solvents, so they actually do the job they were intended to do. They won't come cheap, but they work. Find out more about Weather Barriers, Rainscreen &Vaporbarriers here , from the EcoHome Green Building Guides

The difference between air barriers and vapour barriers
Air and vapour barriers

The Difference between air barriers and vapor barriers

...vaporbarriers The job of avaporbarrier is to preventvapordiffusion, and the job of an air barrier is to stop air leakage through differences in air pressure. A wall system should have onevaporbarrier, but can have many air barriers. Avaporbarrier can act as a very effective air barrier, but an air barrier do...

How to insulate basements properly
Insulation and soundproofing

Best practices for basement insulation in new home construction

...paintas vapourretarder. CLICK IMAGE TO ENLARGE Interior insulation only: mineral wool board or EPS foam as thermal break against concrete wall 2x4 stud wall with mineral wool batts in cavities drywall with latexpaintas vapourretarder. Note: Not having proper exterior moist...

Exterior air barrier membrane © Ecohome
Air and vapour barriers

How to install an air barrier for reduced air leakage

Watch more green building videos on the Ecohome YouTube channel here 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 total heat loss of a home and cause signific...

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

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

...retarders. The higher the perm rating or Ng, the quicker moisture can evaporate. *Ng stands for Nanograms, or billionths of a gram of water. That 60 Ng number refers to the amount of water that will pass through a square meter of a material in a second [ 60 ng /( Pa.s.m2 )]. 1 U.S. perm is actually 57 Ng, that 3 bi...

Passive House wall system ; Larsen Trusses & dense-packed cellulose insulation
Wall assemblies - new construction

Larsen truss wall systems with double-stud construction & extra insulation for new homes & energy efficient home renovation

...vapor对内墙组件的障碍,它可以在所有季节都更安全,特别是当家庭在夏天有空调。Read more here about where to place avaporbarrier in a wall assembly to avoid condensation and mold in drywall . For more about Larsen Truss walls, read about passive house w...

Blower Door Tests - What's the Cost & Who Does Them?
Air and vapour barriers

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

...vaporbarriers , exterior weather resistant barriers (WRBs) , tapes and caulking etc, so the cost doesn’t really go up much. All you need to do to improve the air seal is take your time and be a bit more careful, and what’s the point of taping the joints of a membrane if you don’t do it well and it still leaks air? Buy...

Insulating crawlspaces as part of home renovation
Crawl spaces

How to insulate crawlspaces properly as part of renovating an older home

...vaporates into the air and can condense on cold walls and joists where mold can establish itself. That dank air will inevitably be circulated throughout your home, providing humidity, mold spores and a pretty nasty smell that will be the dominating odour of your home, furnishings, and your clothes, so you will take t...