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Special Consideration for Designing Radiant Heat Systems Over Wood I-Joist Floors

Technical Topic

The use of radiant heating systems, also called hydronic heating systems, in conjunction with wood I-joist floor framing is becoming increasingly popular in residential construction. However, if radiant heat systems are improperly designed, installed or operated, I-joist floor systems can experience increased deflection as a result of differential drying.

This publication is designed for: builders, designers

This publication discusses the problems that improperly installed, designed or operated radiant heat systems can cause. It also describes how to properly design, install and use radiant heating systems with I-joist floor framing.

Key sections include:

  • Improper use of radiant heat

  • Staple-up or suspended tube systems

  • Proper installation of underfloor systems with I-joist floors

Published by APA — The Engineered Wood Association.

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