GreenGuard Plygood Sheathing


For Use as Non-Structural Insulating Wall Sheathing

Kingspan GreenGuard Plygood Sheathing comprises 3/8” thick closed-cell polystyrene (XPS). It is lightweight and easy to cut and install. It is designed to be used in non-structural wall areas as insulation with minimal water absorption and dimensional stability to provide a thermal break over wood studs.

Product Information

Property Test Method Value
Nominal Thickness (in)   3/8
Nominal Board Width( ft)   4
Nominal Board Length (ft)   8, 9
Water Absorption, Max.
(% by volume)
ASTM C 272 2
Water Vapor Permeance
(Desiccant Method)

Thermal Resistance, R-value1
(°F·ft2 hr/Btu per in thick)
ASTM C 518
(@75° Mean Temperature)
Thermal Conductivity, k-value
(Btu·in/hr·ft2·° F)
ASTM C 518
(@75° Mean Temperature)
Fire & Smoke
Flame Spread2
Smoke Developed2
ASTM E 84/
UL 723
10 (Class A)

1 Specimens are aged and tested in accordance with the FTC Rule (16 CFR, Part 460) and ASTM C 578.
2 These numerical flame spread and smoke developed ratings are not intended to reflect hazards
presented by these materials under actual fire conditions. All applicable building codes must be followed.
GreenGuard Plygood Sheathing_Product Sheet_US_CA_IMG

GreenGuard Plygood Sheathing Product Sheet

GreenGuard Siding Underlayment, Sheathing & Roofing Cover Board Safety Data Sheet

GreenGuard Siding Underlayment, Sheathing & Roofing Cover Board Safety Data Sheet

GreenGuard IECC Reference Guide Technical Bulletin #15

GreenGuard IECC Reference Guide 2009 & 2012 Versions

GreenGuard Products Technical Bulletin #11

GreenGuard Products Adhesive, Sealant & Primer Compatibility

GreenGuard XPS  Insulation Board Installation Guide

GreenGuard XPS Insulation Board Installation Guide

GreenGuard XPS & Sheathing Install Guide WRB

GreenGuard Insulation Board & Insulative Sheathing Installation Guide for WRBs


BIM Objects / CAD Details

Click the link below to view our BIM Objects / CAD Details from ARCAT

Kingspan Insulation BIM Objects/CAD Details from ARCAT

Download Typical Wall Assemblies

Do you need assistance planning your project?

Our teams are dedicated to helping make the process as easy as possible and ensure you get the right materials for your needs.

Contact Us

Kingspan Insulation North America

Head Office & Sales Office – North America

Kingspan Insulation LLC

2100 Riveredge Parkway, Suite 175

Atlanta, Georgia



Call: +1(800) 241 4402

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