Putting a metal roof over an asphalt roof.

Discussion in 'Coop & Run - Design, Construction, & Maintenance' started by IndyFlockMama, Sep 13, 2014.

  1. IndyFlockMama

    IndyFlockMama New Egg

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    Apr 10, 2014
    We have a purchased coop and run that has an asphalt roof and the rain has started to separate the shingles away from the boards. What we wanted to do was just cover the asphalt roof with a metal roof and bring the edges out farther, and purchase a flange for the middle top section. Will the metal roof freeze and thaw underneath and create mold? Or should it be okay?
     
  2. taterdog

    taterdog Out Of The Brooder

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    Sep 18, 2012
    Macon, Ga
    roofers put new metal over old asphalt all the time. we have a house that has just that. metal over asphalt.
     
  3. vehve

    vehve The Token Finn

    I'd leave a airspace in between. Any reason you can't just re-shingle the roof and keep the asphalt roof?
     
  4. NHchickenflock

    NHchickenflock Out Of The Brooder

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    Aug 6, 2014
    Gilmanton NH
    You should use strapping to hold the metal off the roof so it's not directly on the shingles.
     
    Last edited: Sep 14, 2014
  5. IndyFlockMama

    IndyFlockMama New Egg

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    Apr 10, 2014
    We already had the pieces of metal roofing left over from the barn, so thought we would use that up.
     
  6. IndyFlockMama

    IndyFlockMama New Egg

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    Apr 10, 2014
    Thanks for your help and good replies. Appreciate them. We have a great community!!!
     
  7. gclark94560

    gclark94560 Chillin' With My Peeps

    I did exactly this but for a different reason.

    I live in Alabama and it gets into the 90s and stays that way for months. It was quite hot in the coop during the day. I nailed 2X2s onto the flat asphalt shingle roof and then put steel roofing sheets over it. It dropped the inside temp by 10 to 15 degrees.

    The 1.5 inch airspace allowed air to circulate and cool the roof. I ended up putting the same steel siding on the sides with Styrofoam insulation in between it and the walls.

    [​IMG]
     

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