An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Video describing roof and attic construction for cold climates, including cathedral roof design and insulation strategies, from Cold Climate Housing Research Center.
Article describing the importance of air sealing, insulation, and roof ventilation in reducing the likelihood of ice dam formation on roofs in cold snowy climates.
Report about a project that examines implementation of advanced retrofit measures in the context of a large-scale weatherization program and the archetypal Chicago, Illinois, brick bungalow.
Guide describing options for providing access to the roof via openable skylights, dormer windows, or roof hatches, for occupants of homes in areas prone to severe flooding.
Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.
Guide describing different options for providing seismic and thermal resistance for homes with basement foundations, crawlspace foundations, or crawlspace foundations with a "cripple" wall.
Information guide describing best practices for dealing with hazards that might be encountered when returning to a home to do renovations after a natural disaster.
Guide describing different options for providing seismic and thermal resistance for homes with 'cripple' wall crawlspace foundations, which are known for their instability.
Overview guide providing background information on extreme heat in the United States as it relates to homes and links to guides describing specific ways to make homes more resistant to extreme heat.
Guide providing information on how cool roofs and wall cladding surfaces work, which climates can most benefit from them, and how to find and select cool roofs and wall cladding products.
Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.
Guide describing the use of doors that are insulated and are impact rated or have protective coverings for resistance to hurricane, high winds, wildfires, and thermal losses.