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2. Vapor barrier - Wikipedia

   en.wikipedia.org/wiki/Vapor_barrier

   6-mil (0.15 mm) polyethylene plastic sheet as vapour barrier between insulation and gypsum board Glass wool pipe insulation covering a steel pipe as it penetrates a mock-up concrete slab whose opening will be firestopped.

3. Plastic film - Wikipedia

   en.wikipedia.org/wiki/Plastic_film

   Film strip (photographic film) 6 mil polyethylene plastic sheet as vapor barrier in construction Confectionery packaging made of PLA-blend bio-flex bioplastic Shrink-wrapped OH-58 Kiowa helicopters to be shipped. Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet".

4. Moisture vapor transmission rate - Wikipedia

   en.wikipedia.org/wiki/Moisture_vapor...

   Moisture vapor transmission rate (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. It is a measure of the permeability for vapor barriers. There are many industries where moisture control is critical.

5. Visqueen - Wikipedia

   en.wikipedia.org/wiki/Visqueen

   Originally spelled VisQueen, the film was an excellent moisture barrier and was marketed to many industrial, architectural, and consumer applications, such as moisture barriers, plant seedbed protection films, building fumigation barriers, drop cloths, case liners, and tarpaulins. [4] [5]

6. Parylene - Wikipedia

   en.wikipedia.org/wiki/Parylene

   [5] [6] However, the copolymer of parylene N and E has equivalent barrier performance of parylene C. Replacement of one hydrogen by methyl on each carbon of the ethyl bridge yields parylene AM-2, [−(CH 3)CH−(C 6 H 4)−(CH 3)CH−] n (not to be confused with an amine-substituted variant trademarked by Kisco). The solubility of parylene AM-2 ...

7. Air barrier - Wikipedia

   en.wikipedia.org/wiki/Air_barrier

   Air barriers control air leakage into and out of the building envelope.Air barrier products may take several forms: Mechanically-attached membranes, also known as housewraps, usually a polyethylene-fiber or spun-bonded polyolefin, such as Tyvek is a generally accepted moisture barrier and an air barrier (ASTM E2178).