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.
Research study developing baseline engineering analysis to support the installation of thick layers of exterior insulation (2 in. to 8 in.) on existing masonry walls and wood framed walls.
Technical report describing research aimed to provide window manufacturers with foundational guidance for installing windows in walls with continuous insulation (CI), addressing critical aspects such as evaluating common installation methods, establishing acceptance criteria for window performance...
Research study evaluating the dynamic heat transmission characteristics through two identical Insulating Concrete Form (ICF) wall assemblies in Ottawa, Canada.
Report describing wall assemblies that use layers of rigid exterior insulation thicker than 1-½ inch and require a secondary cladding attachment location exterior to the insulation.
Document providing renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project.
The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel (WSP) sheathing as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 in. thick over the WSP, and a cladding system installed over the foam sheathing in low...
A specification covering the application of Insulating Concrete Forms (ICFs) that act as permanent formwork for cast-in-place reinforced concrete beams & walls which was published in the year 2022 and is available for preview and purchase at the reference link.
Guide describing the installation of windows in walls that have foam plastic insulating; guide provides several methods for attaching, supporting, and flashing windows in walls with rigid foam sheathing. (Note: The link only goes to the table of contents for the guide, the full guide can be...
Information sheet briefly summarizing double stud with spray foam wall construction including the advantages and disadvantages of this construction strategy.
The New York State Energy Research and Development Authority (NYSERDA) is interested in finding cost-effective solutions for deep energy retrofits (DERs) related to exterior wall insulation in a cold climate, with targets of 50% peak load reduction and 50% space conditioning energy savings.
Report describing evaluation of several configurations of wall assemblies to determine the accuracy of moisture modeling and make recommendations to ensure durable, efficient assemblies.
Part I of the Guide addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) sheathing as exterior sheathing, gypsum board as interior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories in height.
The next generation of building enclosures is a key step toward achieving high-performance goals through decreasing energy load demand and enabling advanced space-conditioning systems. Yet the adoption of high-R enclosures and particularly high-R walls has been a slow-growing trend because...