Henry CompanyAir-Bloc® 21FRAir and Vapor Barrier

  • CMF Tags
    Human Health, Circular Economy
  • Masterformat Section
    07 26 00 Vapor Retarders
  • Air Permeability Tag
    Air Impermeable (≤0.02 cfm/ft² @ 1.57 psf)
  • Durability
    Chemical Resistant, Fire Resistant, Vapor Permeable
  • Fire Rating Class
    Class A
  • Flame Spread Tags
    Average Flame Spread (26-75)
  • Installation Options
    Fluid Spray Applied or Troweled
  • Smoke Development Tags
    Low Smoke Development (0-100)
  • Substrate
    CMU / Masonry, Concrete, Gypsum Sheathing, Mineral Wool Insulation, Plywood
  • Vapor Permeability Class Tags
    Vapor Retarder (Class I)
  • Primary Material Tag
    Synthetic Rubber
  • Secondary Material Tag
    Limestone, Petroleum
  • Certification Tags
    HPD

Applications

Adhesives
Vapor Air & Water Barriers
Andre Baros

Got Questions?

Acelab's team of vetted architects can advise you on your research or get you in touch with a product rep.

Unlock all product data with a free Acelab account

With your Acelab account, you can:

View performance and comparisons

Download specs, technical docs, and CAD/BIM files

Access expert live chat for this product