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Comparing Attic Approaches for Zero Net Energy Homes

The project will focus on the performance of different attic assemblies and their associated heating, ventilating and air conditioning (HVAC) systems. Field measurements of attic and HVAC system performance will be conducted in two new high performance homes in California with sealed and insulated attics. One home will be built to be about 30 percent better than Title 24 and the other will be a ZNE home. The attic insulation approach will be a new lower-cost approach using blown insulation that does not use expensive spray-foam. The results of the measurements will be used directly to provide technical support for potential changes to Title 24 and provide information to contractors and builders on sealed and insulated attic performance and alternative approaches.

Program Information
Funding Organization: 
California Energy Commission
Program Area: 
Buildings
Scope
Funded Performer: 
Lawrence Berkeley National Laboratory
Agreement Total: 
$1,000,000
Match Total: 
$0
Project Start Date: 
March 30, 2015
Project End Date: 
December 31, 2018
Project Details
Ongoing Initiative or Research Project: 
Research Project
Grid, Whole Building, or Technology: 
Technology
Technology Type: 
Enclosure
Sub-Technology Type: 
Enclosure - Attics/Roof
Building Type: 
Single Family
New or Existing: 
New
DR Focus?: 
No
Code/Standard Focus?: 
No
Locale
BA Climate Region: 
Hot-Dry/Mixed-Dry
IECC Climate Region: 
Zone 3
City: 
Berkeley
State: 
California