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Last spring in zone 3B I put in radiant barrier in the attic I noticed that the porch area that is connected

4wjCACsHTe | Posted in Energy Efficiency and Durability on

To the home did not have any insulaion or was not closed off to the rest of the house. The Garage area is the same way. Should these areas be closed off or insulated ? By the way Radiant Barrier dropped my electric air conditioning bill 1/3. Thanks Tc

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Replies

  1. user-659915 | | #1

    If the insulation is over the ceiling of the home and not at the roof deck and the entire roof is vented it is not necessary to provide any separation between the part of it which is over conditioned space and the parts which are not.

  2. Expert Member
    ARMANDO COBO | | #2

    YES.

  3. user-659915 | | #3

    And no.

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