Is Visqueen a vapour control layer?
Product Description. Visqueen Vapour Barrier is a green tinted, semi-transparent polyethylene air and vapour control layer (AVCL). The membrane is supplied in single wound (not folded) 2.0m x 50m roll format.
What is a vapor control layer?
A Vapour Control Layer, or VCL for short, is a plastic layer that restricts the movement of warm, moist air from inside a property into the fabric of the building. VCLs prevent excess moisture entering a wall’s cavity, behind the insulation.
What is the difference between a vapour control layer and a breather membrane?
The answers in the names: vapour control layer stops water vapour getting into the wall from the inside of the structure. Breather membrane keeps water from getting into the wall from the outside but allows any water vapour that is in there to escape.
Where do you put the vapour control layer?
A vapour control layer is typically installed on the internal side of the insulation to control the passage of warm moist air (water vapour) entering the structure.
What is Visqueen used for?
Visqueen is used for many purposes. It is commonly used as a temporary tarpaulin, as a drop cloth when painting, to cover concrete as it sets, to line decorative ponds, and to cover the ground before applying stone or wood chips to prevent weed growth.
What is the best vapour barrier?
The IRC recommends builders install a Class-I or -II vapour retarder on the interior side of homes in climate zones 5 (Cold) and north, and in the Marine 4 zone. However, if you air-condition your house in the summer, your might trap condensation in your roof or walls for part of the year.
Is a VCL breathable?
VCL is a collective term for materials used to control the passage of moisture So in theory, it can be used to describe both breathable membranes and Vapour Barriers which are 2 very different materials. However, you will usually find that VCL is used specifically to describe a vapour barrier.
Can I use breather membrane as vapour barrier?
A breather membrane is positioned on the outer side of the insulation, allowing vapour to escape from inside while repelling any water that tries to enter. A vapour control layer, positioned on the inner side of the insulation, reduces vapour transfer in a building.
Do you need a vapour barrier with Kingspan?
Composite products. Composite products (such as Kingspan K118 Insulated Plasterboard) include integral moisture vapour control. As with any vapour control, workmanship is crucial. For example, taping and lapping joints for polythene, avoiding penetrations, and then sealing around any penetrations.
What’s another name for visqueen?
Plastic sheeting’s other names are: liners, vapor barriers, vapor retarders, films, polyethylene sheeting. poly sheeting, visqueen, plastic film, reinforced plastic, self-adhesive films, tarps, root barriers, underlayments, greenhouse films, plastic covering, and so on.
What is the difference between visqueen and plastic?
Plastic sheeting is also referred to as “plastic film, visqueen, poly”. An analogy would to plastic wrap one uses to cover food, only much thicker and it much bigger rolls. Visqueen is a brand of polyethylene plastic sheeting that is usually LDPE.
What is Visqueen vapour barrier?
Visqueen Vapour Barrier is a green tinted, semi-transparent polyethylene vapour control layer. The membrane is supplied in single wound (not folded) 2.0m x 50m roll format.
What is Visqueen vapour check?
Visqueen Vapour Check is a green tinted, semi-transparent polyethylene air and vapour control layer (AVCL). The membrane is supplied in multi folded rolls, 2.45m x 50m and 4m x 50m.
What is fully bonded vapour barrier?
Visqueen Fully Bonded Vapour Barrier is a foil lined modified bitumen rubber membrane with a self adhesive coating protected by a removable polyethylene release film. It is silver on the upper surface and supplied in rolls 1m x 20m. The difference is Visqueen