Roofs, Attics & Ceilings -

Roofs

This guide provides information about installing 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.

Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

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 ways to strengthen roof assemblies for resistance to hurricanes, high winds, and earthquakes.

Guide describing how ice dams form and how roofs can be constructed to prevent them.

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 how to install and properly integrate flashing at the intersection of the wall and roof on an existing home.

Guide describing the advantages and disadvantages of gable roof and hip roofs and how both designs react under high wind loads.

Guide describing how to brace gable end walls to resist wind pressures.

Guide describing how to apply heavy membranes at eaves in cold climates to help guard against ice dams.

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 outlining how to retrofit an exterior wall and/or attic to provide continuous air sealing.

Guide describing insulation techniques for skylight shaft walls.

Guide describing how to install step and kick-out flashing on roofs.

Guide describing methods for insulating an unvented attic along the roof line.

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

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.

This guide describes how to install a rigid air barrier to separate the porch attic from the conditioned space.

Guide describing an approach to re-roofing an existing flat roof to improve thermal, water, and air control performance.

Guide describing how to re-roof an existing home with a sloped roof.

Guide describing wind washing and how to prevent it.