Showing results 1 - 100 of 100
Description
Guide describing methods for insulating an unvented attic along the roof line.
Description
Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.
Description
Guide describing construction of sloped roofs that are unvented and are insulated above the roof deck.
Description
Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.
Organization(s)
Green Building Advisor
Publication Date
Description
Information sheet presenting the correct methods for building an insulated cathedral ceiling.
Description
Guide describing the installation of insulating sheathing above the roof deck on existing homes. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.
Description
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.
Description
Information guide describing proper attic air-sealing, insulation, and ventilation to combat ice dam formation on roofs in cold climate zones.
Description
Information guide providing links to guides describing specific ways to air-seal, insulate, and ventilate attics and roofs to minimize heat gain in new and existing homes.
Description
Guide describing how to re-roof an existing home with a sloped and add insulation above the roof deck.
Organization(s)
University of Minnesota,
U.S. Department of Energy,
DOE,
NothernSTAR
Publication Date
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.
Description
Guide outlining how to retrofit an exterior wall and/or attic to provide continuous air sealing.
Description
Guide describing options for designing and locating the thermal boundary at either the attic floor or along the roof line in new and existing homes.
Publication Date
Overview
The intent of this brief is to provide code-related information about controlling moisture in unvented attics by installing a vapor diffusion port/vent that would convey water vapor from an unvented attic to the outside when air-permeable insulation materials are installed and can be verified as being in compliance with the related codes and standards for residential construction. Providing consistent information to document compliance with codes and standards to all relevant parties responsible for verifying compliance (e.g., code officials, builders, contractors, designers, etc.) is expected to result in increased compliance and more timely, less challenging and more uniform plan review and field inspections.
Description
Guide describing how to insulate and air-seal dropped ceilings and soffits to prevent air leakage.
Organization(s)
Building Science Corporation,
BSC
Publication Date
Description
Report describing sloped roof assemblies with high levels of thermal performance.
Description
Guide describing causes of condensation in attics and roof assemblies during cold weather and ways to reduce this condensation.
Organization(s)
PNNL,
DOE
Publication Date
Description
Case study showing project and performance data and energy-efficiency measures for a DOE 2017 Housing Innovation Award winning home that was certified to the DOE Zero Energy Ready Home criteria.
Organization(s)
Building Science Corporation,
BSC
Publication Date
Description
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.
Organization(s)
BSC
Publication Date
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.
Organization(s)
Montana State University Extension,
MSU Extension
Publication Date
Description
Article from Montana State University Extension explaining how proper insulation techniques can greatly reduce the risks of ice dams on roofs in cold climate zones.
Description
Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.
Organization(s)
PNNL,
DOE
Publication Date
Description
Case study describing a DOE Zero Energy Ready Home 2017 Housing Innovation Award winner that scored HERS 41 without PV and 8 with PV.
Description
Information guide describing things to consider in the attic, ceiling, or roof before attempting retrofits of items including HVAC, wiring, or structural systems.
Organization(s)
Building Science Corporation,
BSC
Publication Date
Description
Guide providing information on controlling attic ductwork sweating.
Organization(s)
Building Science Corporation,
BSC
Publication Date
Description
Report describing Net Zero house design with sloped roof assemblies.
Organization(s)
Building Science Corporation,
BSC
Publication Date
Description
Guide providing information on controlling attic ductwork sweating.
Organization(s)
Insurance Institute for Business & Home Safety,
IBHS
Publication Date
Description
Report covering the migration of wind-blown embers in roof vents.
Organization(s)
Building Science Corporation,
BSC
Publication Date
Description
Article describing the control layers (air, thermal, and vapor barriers) needed to build homes successfully in very cold locations.
Publication Date
Organization(s)
CCHRC
Description
Video describing roof and attic construction for cold climates, including cathedral roof design and insulation strategies, from Cold Climate Housing Research Center.
Organization(s)
Building Science Corporation,
BSC,
U.S. Department of Energy,
DOE
Publication Date
Description
Report to understand the long-term moisture performance of unvented roof assemblies with fibrous insulation.
Organization(s)
ORNL
Publication Date
Description
Fact sheet describing analysis of potential heating and cooling savings from radiant barriers in attics.
Organization(s)
Building Science Corporation,
BSC,
National Renewable Energy Laboratory,
NREL
Publication Date
Description
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.
Organization(s)
Advanced Residential Integrated Energy Solutions,
ARIES
Publication Date
Description
Report of a field evaluation of four novel roof designs to see how each design would reduce space-conditioned energy use so that the knowledge gained could be applied to the design of new manufactured homes.
Description
Guide describing the installation of roof vents that are resistant to damage from high winds and entry of wind-borne rain, wildfire embers, or pests.
Description
Guide describing the use of attic ventilation fans to mechanically pull outside air through the attic in an attempt to cool the attic, control moisture, and prevent ice dams.
Description
Information guide describing how to calculate attic passive ventilation with example calculations.
Description
Guide describing how to brace gable end walls to resist wind pressures.