CCHRC has summarized our latest findings on wall retrofits in a research snapshot. We studied various retrofit techniques over the last two winters in a trailer outfitted with 9 different test walls--each with unique combinations of interior and exterior insulation, some with vapor barriers and some without. Researchers asked two main questions: is there a minimum thickness of exterior insulation that can be added to prevent moisture problems, and will adding exterior insulation create a double vapor barrier effect by trapping condensation in the wall cavity?

CCHRC researchers recently completed a guide that walks consumers through different types of home heating systems. The in-depth publication, created for the Alaska Housing Finance Corporation, covers heating appliances, distribution systems, and domestic hot water systems that are common in Alaska. It provides information and tools to help homeowners make informed decisions on heating appliances.

CCHRC is digitizing and cataloging all the research and reports generated by the Permafrost Technology Foundation over 20 years. The reports discuss how build on permafrost and different techniques for stabilizing structures on permafrost, such as leveling or adding thermosiphons under the house.
View the reports here.

CCRHC tested eight types of common window insulation treatments during a Fairbanks winter to see how they handled heat loss and moisture buildup. Each technique was evaluated based on six criteria, so homeowners can select an insulation method based on factors most important to them. Exterior insulation methods, like shutters and storm windows, tended to perform the best and have the fewest condensation problems.