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SIGA Majrex 200 Vapor Control Layer

1 review
SKU 8310
Original price $529.15 - Original price $529.15
Original price
$529.15 - $529.15
Current price $529.15
in stock

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SIGA's Majrex 200 is a vapor control layer using Hygrobrid technology that establishes airtight layers on the warm side of thermal insulation to prevent moisture build-up in wall cavities that can cause mold and rot and damage structural integrity.

What's Included

  • 59 inches wide and 164ft long 
  • Total coverage per roll: 807 sqft 

Delivery time / Order Processing & Shipping Times

Rise ships manufacturer direct. We work hard so you receive your product(s) as quickly as possible. Shipping times are subject to each carrier's daily cut-off time, and dependent upon warehouse turnaround. Learn more about our order processing & shipping times here.

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More about this product (provided by the manufacturer)

SIGA Majrex 200 is a fiber-reinforced, modified PE/PP sheet membrane designed as an interior air-barrier and vapor control layer. With its unique and revolutionary Hygrobrid® technology, the permeance of Majrex 200 varies depending on the direction of vapor flow.


When combined with compatible SIGA system components, SIGA Majrex 200 also forms an effective air barrier to avoid building damage, drafts and heat loss. Suitable for containment of blown-in insulation.


Roll Dimensions: 4.9' x 164' 

Thickness: 12 mils 

Dynamic water vapor transmission: 0.097 <> 4.25 US perms 

Air permeance: Pass 

Surface burning characteristics: Class A

Documentation and Tear Sheets


10-Year Limited Warranty from SIGA


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Great product

great product very easy to work with.

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