Home   |   Education   |   Membership   |   News   |   FAQs   |   About Us
Members:   Login   |   Register
YouTube   Twitter   LinkedIn   AWC Store
American Wood Council

Are OSB and plywood considered wood so the R values can be summed?

Yes, R values can be summed for OSB and plywood. Values are shown in Design for Code Acecptance 7 -  Meeting Residential Energy Requirements with Wood-Frame Construction - 2012 IECC Version. 

The following FAQ is based on the presentation of BCD600 – Meeting Residential Energy Requirements with Wood-Frame Construction.

American Wood Council
222 Catoctin Circle SE, Suite 201
Leesburg, VA 20175

- Public Policy Office -
1101 K Street NW, Suite 700
Washington, DC 20005
- Phone -
General: 202-463-2766
General Fax: 703-771-4079
Publications: 800-890-7732
Publications Fax: 412-741-0609
- Email -
Technical: info@awc.org
Publications: publications@awc.org
Education: education@awc.org
Fire: fire@awc.org
© Copyright 201​8 American Wood Council. All Rights Reserved.