The Building Science of Floor Systems

Vapor drive can be just as important in crawlspace wood floor assemblies as it is in wall design
By clicking "Register", you acknowledge that you have read BNP Media’s Privacy Policy, agree to its terms, and consent to allow BNP Media to use your information consistent with the Privacy Policy. You agree your information submitted will be shared with the sponsor(s) of the webinar. To read our Privacy Policy, please click here
Live webinar airing on November 10, 2020 at 2:00 PM EST
Sponsored by AdvanTech® subfloor assembly
Presented by Chris Clark

Learning Objectives:

  1. Identify and recognize the health and safety issues of moisture and vapor drive in wood framed floor assemblies, particularly over crawl space foundations.
  2. Investigate the building code requirements and exceptions related to crawl space design, ventilation, and protection of the structure.
  3. Assess the characteristics of subflooring and finish flooring materials that can contribute to moisture and vapor issues in a wood floor assembly.
  4. Review best practices and identify solutions as found in building projects that incorporate the principles presented for successful, safe floor construction.

Credits:

HSW
1 AIA LU/HSW
AIBD
1 AIBD P-CE
IACET
0.1 IACET CEU*
AAA
AAA 1 Structured Learning Hour
AANB
AANB 1 Hour of Core Learning
AAPEI
AAPEI 1 Structured Learning Hour
MAA
MAA 1 Structured Learning Hour
NLAA
NLAA 1 Hour of Core Learning
NSAA
NSAA 1 Hour of Core Learning
NWTAA
NWTAA 1 Structured Learning Hour
OAA
OAA 1 Learning Hour
SAA
SAA 1 Hour of Core Learning
 
This course can be self-reported to the AIBC, as per their CE Guidelines.
This course is approved as a Structured Course
Approved for structured learning
Approved for Core Learning
This course is approved as a Core Course
Course may qualify for Learning Hours with NWTAA
Course eligible for OAA Learning Hours
This course is approved as a core course
This course can be self-reported for Learning Units to the Architectural Institute of British Columbia

All of the same moisture and vapor drive dynamics that occur in wall assemblies can also take place in a wood framed floor assembly, especially over a crawl space. This course will take a closer look at the building science of vapor drive that can lead to moisture issues in wood floor assemblies when proper sequencing of materials to allow drying is not accounted for in design. It will address the use of some of the most common construction and material options in wood-framed flooring assemblies. It will also look at some guidelines and best practices to help reduce the likelihood of developing problems over the life of the building.

Building Science

Image Courtesy of Huber Engineered Woods


Stevie

As manager of Huber Engineered Woods’ Product Engineering Team, Chris Clark is a technical resource providing consulting to contractors on the jobsite, as well as architects and engineers in regards to how HEW products can be incorporated into their design to meet local building codes. Since graduating with a Masters of Science in Civil Engineering with a focus on structural engineering, his decade of industry experience is centered on the design requirements of wood-framed structures.

 

AdvanTech<sup>®</sup> subfloor assembly AdvanTech subflooring exceeds PS-2-code-minimum design standards for strength, stiffness and fastener-holding power. Documented in the ICC Evaluation Service Report, ESR-1785, AdvanTech’s advanced resin technology provides consistent moisture protection throughout the panel, so AdvanTech panels stay flat without swelling, cupping or warping, to give finished floors an even, solid feel. With a higher wood density, AdvanTech® subfloors are the perfect substrate for a variety of flooring applications, including common gypsum-concrete and 2-layer floating subfloor systems in multifamily and light commercial construction.

 

Originally published in November 2020

Notice

Academies