Insulation above front door porch


Old 08-05-14, 05:16 PM
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Insulation above front door porch

my front door porch ceiling has flat ceiling and a recessed light. i want to replace the ceiling with cedar tongue and groove and the light with a flush mount light.

i tore down the ceiling to see 0.5 inch foam board insulation and fiberglass insulation behind that, with the paper facing out and facing in, see picture.

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looks like there is some mold on this insulation

what type of insulation should be above this ceiling? there is an interior room above this porch
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Old 08-06-14, 06:08 AM
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Welcome to the forums.

Small area but an interior space above it so I'd be looking at max insulation regardless of cost. Spray foam is my first thought.
Old 08-06-14, 06:36 AM
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what if i were to use foam board inbetween each rafter and then spray foam around on the border of each foam board
Old 08-06-14, 07:02 AM
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Just a guess, without seeing the discoloration up close, but it could be just dirt filtered out from air leakage. Fiberglass insulation often looks like that. A recessed light and holes drilled for wiring can provide lots of air leakage.

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