Reference
Description
Q&A article discussing how to address moisture issues in an attic in a wet and humid coastal climate.
Video
Description
Video from Horizon Energy on thermodynamics relating to insulation in attics of homes located in hot climates.
Reference
Description
Building science report describing issues with vented attics in hot-humid climates and how sealed attic construction may be a solution.
Video
Description
Video describing roof and attic construction for cold climates, including cathedral roof design and insulation strategies, from Cold Climate Housing Research Center.
Reference
Description
Report reviewing unvented roof assemblies, such as conditioned attics and unvented cathedral ceilings that are becoming common in North American construction.
Reference
Description
Report on heating and cooling air-distribution ducts that are insulated, installed close to the ceiling in a vented attic and covered with attic insulation to minimize energy loss.
Presentation
Description
Presentation by Home Performance Contractor Academy giving building science advice for for homes in dry climate zones, specifically building envelope, air sealing, and attics. Part 5 of 7.
Reference
Description
Report to understand the long-term moisture performance of unvented roof assemblies with fibrous insulation.
Reference
Description
Report on the use of vapor diffusion ports to reduce moisture issues with buried ductwork in unvented attics in hot-humid climates.
Case Study
Description
Case study describing an experiment to build and instrument unvented test roofs using air-permeable insulation in a cold climate and to analyze the moisture effects over time.
Case Study
Description
Case study describing compact buried ducts in hot-humid climate homes.
Case Study
Description
Case study describing the retrofit of a 1960s split-level home.
Reference
Description
Report exploring alternative methods to find long-term solutions to energy loss in 1 ½-story homes to save energy, improve comfort, prevent frost buildup on the underside of the roof deck, and reduce the risk of ice dam formation/reformation.