Insulating skylight wells

Insulation · Attics · printed page 247 (PDF page 248)

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Book index entries

Insulating Skylight Wells Skylight – Wells – Insulating

Text in the illustration

skylight
roof rafter
attic
air/vapor barrier on warm side of insulation
insulation
light well
insulate walls of skylight well to same R-value that is required for conventional exterior walls
wall
cross section
gutter not shown

Generated explanation

The cross section shows a skylight in a sloped roof with a light well extending through the attic to the space below. Insulation follows the ceiling and the walls of the skylight well, separating the interior from the attic. An air/vapor barrier is indicated on the warm side of the insulation. The annotation specifies insulating the skylight well walls to the same R-value required for conventional exterior walls.

Components

skylight light well walls roof rafters sloped roof ceiling exterior wall insulation air/vapor barrier

Materials

wood framing batt insulation air/vapor barrier membrane