Vapour barriers/绿色建筑和可持续的家庭装修正无穷ormation & Advice

...vapourth屏障是由大量的水分at passes through it, and it is given a rating. Any material that allows less than 60NG (nanograms) of moisture to pass through under specific conditions, is considered a type 9 residentialvapourbarrier by the National Building Code. Including avapourcontro...

...vapourbarrierstime to understand the difference to airbarriers, and firstly it should be pointed out that the watervapourpermeating through building materials - the reason for installing avapourbarrier - is not the monster it has been made out to be. 100 times more watervapouris carried though a wall assembly...

...vapourbarrier, we used a 10 mil barrier and a radon evacuation stack to lower radon gas levels in homes, research shows (see below) that thicker membranes offer more effective protection. In this video we are installing a 10 milvapourbarrier but we would probably use a thick vapor barrier like this one in future a...

...barriersand vaporbarriersis to prevent moisture from forming at that critical point, they just do it in completely different ways. VaporbarriersThe rule for vapor barrier installation in cold climates is to have it on the interior with at least 2/3rds of your insulation on the outside of thevapourbarrier. Ai...

...barriers100 times more important thanvapourbarriers, so why is no one talking about them? We don't talk about airbarriersbecause we are too busy talking about vaporbarriers. An air barrier is not something you walk into a building supply store and buy; it is a design concept, and arguably a commitment. Products...

...barriersandvapourbarriers: The job of avapourbarrier is to preventvapourdiffusion and the job of an air barrier is to stop air leakage through differences in air pressure between inside and out. A wall system should have onevapourbarrier, but can have many airbarriers. Avapourbarrier can act as a very eff...

...Vapourimpermeable 0.1 perms or lessVapoursemi-impermeable 1.0 perm or less and greater than 0.1 permsVapoursemi-permeable 10 perms or less and greater than 1.0 permsVapourpermeable Greater than 10 perms Understandingvapourpermeability: All we are talking about so far a...

...vapour. We are often asked which caulk is best for bathrooms and showers? Which caulk is best for wood? Which caulk is best for sealing windows? Well to start, different types of caulking and sealant can generally be divided into three categories: interior, exterior and ‘special purpose’ sealants depending on their app...

Air Tightness in Houses - All about Balancing Air Pressure in the Home We go on incessantly here about the importance of airbarriersin home construction to reduce air leakage , but no matter how hard you worked to make a house airtight, if the pressure isn't balanced you will be sucking air in or forcing it out an...

...barrierson basement insulation will rot your walls " We putvapourbarriersin 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 thousan...

...barrierswith Vaporbarrierseither, they're not the same... Adding to that problem is that we have introduced engineered wood products that are far more susceptible to moisture damage than solid lumber . If you were thinking it's ok to build a new home with OSB "because everybody does it", see why we consider that the...