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Best way to seal insulate behind Garage Door

Discussion in 'Building' started by chi2000, 24 Oct 2016.

  1. chi2000

    chi2000

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    Hi All,

    I'm currently insulating and boarding my garage out and not sure the best way forward for behind the garage door.

    The garage door is staying in place and i'm building a stud wall (cls 38 x 89) behind it and going to fill with 90mm celotex.

    I'm not sure if this would be warm enough so was also thinking of also using 60mm celotex friction fitted directly behind the door garage door in the brick recess.

    Is this a good or bad idea?

    Also what's the best way to seal the garage door?

    Any input would be much appreciated.

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    Last edited: 24 Oct 2016
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  3. ^woody^

    ^woody^

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    I'm confused

    Are you using the door or not? If not, just do the same as you are doing to the walls
     
  4. chi2000

    chi2000

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    Sorry I should have been more clear. The door is staying in place but not going to be used. I going to do the same as the walls but wasn't sure if 90mm celotex in a stud frame alone won't be enough insulation due to the garage door and garage door gaps.

    Wanted some input on weather or not to use some more insulation and also if or not to seal up the garage door gaps before I finish the timber frame.
     
    Last edited: 24 Oct 2016
  5. garyo

    garyo

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    Have you considered replacing the up-and-over door with two vertically hung doors and giving yourself a 500mm deep storage space that's accessible from outside? My neighbours taken that approach and shelved most of it, so it's a home for all the messy junk (and his bike) that you don't want in the house.
     
  6. chi2000

    chi2000

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    Hi garyo, thanks for your reply. I don't really need the extra space as the garage has a loft area that's already boarded out on the one side. Also not the biggest fan of the extra costs involved. I'm more worried about making sure it's stays as warm as possible in their.
     
  7. chi2000

    chi2000

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    After some other input I was thinking of sealing around the garage door with expanding roam. Then putting up a sheet of dpm around around the garage door / recess and then insulate with 60mm celotex which will then bring it inline with the brickwork and lintel.

    Now because I've already setout the studwork I will be left with a 25mm gap between the 60mm celotex / brick / lintel and the 90mm celotex / timber frame wall.

    I'm not sure if it's better to fill this gap with more celotex or something else or leave it. Not sure if filling the 25mm gap is going to bridge everything and make it perform worse.

    Any input would be much appreciated.
     
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