How do you insulate this

stuff to stop condensation forming inside? Is there some shaped insulation foam I can buy or is there some other method to prevent thermal bridging

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  1. 11 months ago
    Anonymous

    do you want to insulate it or just stop condensation?

    to stop condensation you buy the sheets with felt lining or apply a sticky felt.
    the felt soaks up the moisture and releases it slowly stopping drips.

    • 11 months ago
      Anonymous

      Wouldn't the felt end up growing mold?

      • 11 months ago
        Anonymous

        the increased surface area the felt provides will evaporate off the condensation faster than it forms and there won't be as much of it to begin with since they'd provide a slight insulation layer.
        honestly never heard of anyone lining these with felt but it sounds like it should work.

        • 11 months ago
          Anonymous

          I doubt it will actually work out that way. Cotton felt is extremely hydrophilic and it's a right pain to dry it out. It's what makes wet socks the worst. You would need wool or synthetic felt for this to work, because cotton in a moist dipping environment will never dry out.

        • 11 months ago
          Anonymous

          I doubt it will actually work out that way. Cotton felt is extremely hydrophilic and it's a right pain to dry it out. It's what makes wet socks the worst. You would need wool or synthetic felt for this to work, because cotton in a moist dipping environment will never dry out.

          here this is available from every corrugated sheet manufacturer for a small fee.

          i don't think its cotton its probably mostly recycled shredded clothing like painter fleece

  2. 11 months ago
    Anonymous

    Provide some context. Is it just sitting over a chicken coop and collects condensation in the morning, or is it on the side of a house/shed and cooling the interior draws condensation?

    • 11 months ago
      Anonymous

      It's a shed roof. I bought the place last year and initially it had styrofoam sheets as insulation. Only problem was that rats were nesting up there so I tore it all down last autumn. During the winter condensation was bad and there were drips all over the place.
      Like the felt idea posted above I'm thinking of taping a few layers of foam underlay to keep the damp air from condensing on the cold roof

  3. 11 months ago
    Anonymous

    put it over top of insulation and sheathing, like you would shingles

  4. 11 months ago
    Anonymous

    Why not just hang a sheet of plastic or tarp under the roof, like a tent? Keep it from touching the metal directly, to avoid the condensation forming on the plastic too.

  5. 11 months ago
    Anonymous

    Spray foam insulation.

  6. 11 months ago
    Anonymous

    slant it so it drains in to a gutter

  7. 11 months ago
    Anonymous

    That spray rubber shit. Flexseal
    Or double it up using corrugated fiberglass with an air gap of 1/2"

  8. 11 months ago
    Anonymous

    if there's condensation on the underside then that means your shed is damp. either address the source of the moisture and run a heater to dry it out, or ensure that the roof is slanted and header is fully wrapped so that moisture drains to the outside and not into the structure

    read up on the importance of air circulation in rooflines if you do want to insulate it. you don't want to end up with moisture trapped between the insulation and the steel.

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