ZIP System® R-Sheathing

Technical Information

Visit the ZIP System R-Sheathing technical library for detailed specifications, installation guides and other technical information.

5-in-1 System with Layers of Innovation

For installation convenience and exceptional, long-term performance, the all-in-one ZIP System® R-Sheathing panel provides a new approach to sealing and insulating the building envelope. One panel delivers thermal, air and moisture resistance, while providing excellent strength and durability.

1 Continuous Foam Insulation Provides Higher R-value
  • Increases thermal performance while eliminating thermal bridging
  • Designed to meet new energy codes
2 Engineered Wood Provides Structure and Durability
  • Nailable wood base for trim and accessories
  • Provides security against easy home intrusion
3 Built-In Water Resistive Barrier Eliminates Housewrap and Felt
  • Eliminates costly rework
  • Instant rough dry-in with 180-day exposure guarantee
  • Superior drainage efficiency that channels moisture downward off the panel face
  • Permeable overlay promotes panel drying
4 Continuous Air Barrier Creates Greater Energy Efficiency
  • Decreases unwanted air leakage into and out of a building
  • Helps protect the R-value of insulation, reducing heating and cooling costs
5 ZIP System™ Tape Permanently Seals All Panel Seams
  • Acrylic formulation provides superior adhesion
  • Rigorously tested for long-lasting performance
  • Easily applied with tape gun and accessories

Insulation and durability in one installation. How’s that for efficiency?

A single-piece design lets you avoid the hassles of multi-level systems. Just hang the panels and tape the seams for a wall system that provides structure, moisture protection and tight air seal, all in one.


Step 1 Fasten Panels

Use code-recognized fasteners and spacings


Step 2 Tape Seams

Tape horizontal and vertical seams



Step 3 Tape Corners

Tape inside and outside corners. Use the corner/vallery tool to aid in corner tape installation



1", 1 1/2", 2" & 2 1/2" ZIP System® R Sheathing
R-Value Code
Air Barrier
R-3 1" 4' x 8' 32 3.6 ESR 3373 ASTM E 2178
<0.02 L/(s∙m2) @ 75 Pa

ASTM E 2357
<0.02 L/(s∙m2) @ 75 Pa
R-6 1 1/2" 4' x 8' 31 6.6
R-9 2" 4' x 8' 23 9.6
R-12 2 1/2" 4' x 8' 18 12.6


Physical Property Data Chart

Foam Performance
Property Test Method Typical Results
Dimensional Stability ASTM D 2126 < 2%
Compressive Strength ASTM D 1621 20-25 psi
Water Absorption ASTM C 209 < 1%
  ASTM D 2842 < 3.5%
Moisture Vapor Transmission ASTM E 96 < 1.0 perm
Density ASTM D 1622 Nominal 2.0 pcf
Flame Spread ASTM E 84 40-60
Smoke Developed ASTM E 84 50-170
Tensile Strength ASTM D 1623 > 730 psf
Service Temperature   -40 to 200 F
ZIP System Performance
Water Resistance of Coatings ASTM D 2247-97 Passed 14-day
exposure test
Drainage Efficiency ASTM E 2273 > 90%
Water Vapor Transmission ASTM E96B 12-16 perms (overlay)
Water Penetration ASTM E 331-00 Passed
Air Barrier Assembly ASTM E 2357-05
at 75Pa
0.037 L/s•m2
Wind Driven Rain TAS-100 Passed 100 mph
Accelerated Weathering ASTM G 154 Passed
Long term thermal resistance values of the foam were determined in accordance with ASTM C 1289-02. The R-Value of 0.55 for 7/16" OSB was obtained from ASHRAE Handbook, Fundamentals.