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  • Sorry don't know but interested in the answer.

    I have my own question re insulation / boarding up a shed, using insulation in the form of say thermal insulation board versus the type of insulation silver/super foil that is attached to the shed walls.

    I suppose my question is are there options or do I need all of these?

    • Option 1: silver foil on back of featherboard, one inch gap, OSB mounted on wall studding. Do I need thermal insulation board here as well?

    • Option 2: Thermal insulation board on back of featherboard, OSB mounted on wall studding. Is the gap still required? Does it matter if it is one side or the other of the thermal insulation board? Is there any need for the super foil?

  • I vote for option 2 but leave the gap between the insulation and the featherboard. That way you can allow airflow and have space for any water that may get through the feather board or roof to drain out.
    Will the shed be heated or cooled or are you just trying to reduce the temperature swings?

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