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Air & Water Resistive Barriers

To increase energy efficiency, buildings are being built with extreme airtightness. In the past, drafts coming through exterior walls would keep the wall cavity dry. But relying on drafts isn’t a good plan, hence the high performing air and moisture barriers of today. Tighter buildings are designed to prevent outside air and bulk water from entering, and allow moisture vapor to escape. Building wraps are easily damaged. The solution? High-performance membranes to increase airtightness.

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DELTA®-VENT S is a supertough, lightweight roofing underlay. The 3-layer, high strength spun-bonded PP breather membrane is water vapor permeable, while completely waterproof. A fabric layer on the lower side protects the membrane against damage (eg. roug DELTAŽ-VENT S 4'-11" X 164'----- 804 Square Feet


  • Ideal for non-vented roof
  • Completely Waterproof
  • Concrete, Clay, Slate

Our Price: $410.83
Cosella-Dorken DELTA-VENT SA DELTAŽ-VENT SA 4'-11" X 115'----- 565.1 Square Feet


  • Ideal for non-vented roof
  • Completely Waterproof
  • Concrete, Clay, Slate

Our Price: $809.12

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DELTA-FASSADE S  The extreme UV resistance of this water-resistive barrier makes it particularly suitable for use in open joint cladding systems. The watertight membrane is highly vapor permeable and extremely tear resistant Its excellent stability ag DELTAŽ-FASSADE S


  • Extreme UV Resistance
  • Highly Vappr Permeable
  • Open Joint Claddings

Delta Maxx Titan underlayment by Cosella Dorken , The highly vapor permeable, reflective, watertight roof underlay with energy saving properties. Cool in the summer, warm in the winter.
Material
High strength Polyester fabric with vapor permeable Polyur DELTAŽ-MAXX TITAN 4'-11" X 164'----- 804 Square Feet


  • High strength Polyester
  • Completely Waterproof
  • Energy Saving Properties

Our Price: $1,589.00