Code Notes

Code Notes assist builders in obtaining code compliance of energy-efficient technologies. These information sheets written to code officials address a single above-code or otherwise obscure building feature. They explain how the feature is covered by the relevant code(s), give a concise explanation of why and how it works, list in detail any other requirements that must accompany the particular feature, and include detailed drawings and graphics.

The following Code Notes are information resources that (1) explain how a selected building feature is covered by the relevant code or codes, (2) give a concise explanation of why and how the building feature works, (3) list in detail requirements that must accompany the particular feature, and (4) include detailed drawings and graphics. Code Notes are used by:

• Code officials or others who need assistance in addressing a single above-code or otherwise obscure building feature
• Builders seeking to obtain code compliance for new energy-efficient building technologies.

Residential:

• Single Top Plates
• Details for Mechanically Vented Crawl Spaces
• Drywall Clips
• Header Hangers in Bearing Walls
• No Headers in Nonbearing Walls
• Open Spaces as Return-Air-Options
• Rigid Board Insulation Installed as Draft Stop in Attic Kneewall
• Whole-House Mechanical Ventilation
• Ventilation Requirements for Condensing Clothes Dryers
• Residential Heating and Cooling Load Calculation Requirements
• Conditioned Attics

Commercial:

• Vestibule Requirements in Commercial Buildings
• Commercial Air Barrier Requirements for Insulated Ceilings
• Updated ANSI/ASHRAE Standard for Commercial Ventilation Rate Procedure
• Gray Water for Toilets
• Economizer Requirements in IECC 2006 - Code Notes