Serving Washington, Oregon and Idaho
If you are designing a gymnasium, big-box retail, or one of several other building types, you can still utilize integral-insulated exposed single-wythe concrete masonry (CMU) walls for code compliance. This cost-effective wall system remains a prescriptive path design option in the latest Washington and Oregon energy codes.
Click here to view the full article by Tom Young (opens as PDF).
If you are designing a gymnasium, big-box retail, or one of several other building types, you can still utilize integral-insulated exposed single-wythe concrete masonry (CMU) walls for code compliance. This cost-effective wall system remains a prescriptive path design option in the latest Washington and Oregon energy codes.
Click here to view the full article by Tom Young (opens as PDF).
Oregon:
Click below to view the SAM 19-01 – Single-wythe CMU mass wall exception, Chapter 4 (opens as PDF).
https://www.oregon.gov/bcd/codes-stand/documents/sam-19-01-18IECC.pdf
If you are designing a gymnasium, big-box retail, or one of several other building types, you can still utilize integral-insulated exposed single-wythe concrete masonry (CMU) walls for code compliance. This cost-effective wall system remains a prescriptive path design option in the latest Washington and Oregon energy codes.
The links below give more information about these energy codes.
Masonry Requirements of Northwest Energy Codes – July 2016 (opens as PDF)
Beneficial Mass Wall Provisions Will Remain in Northwest Energy Codes (opens as PDF).
When using the optional ASHRAE 90.1-2019 code compliance method, see amendment in Statewide Alternate Method (SAM) 21-02, effective October 1, 2021 (opens as PDF):
IBC Section #2107.2.1
This code change was adopted on March 28, 2018. It places a cap on the required length of reinforcement lap splices for allowable stress design (ASD) of masonry. It makes the allowable stress maximum lap length equivalent to the strength design maximum lap length.
Please click here to view the code change on the State of Idaho website (opens as a PDF): https://adminrules.idaho.gov/rules/2019%20Archive%20C2/07/070301.pdf
Please click here to view a PDF of the Guide Specification:
Section 04220 – Guide Specification for Reinforced Concrete Unit Masonry