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Dormer stud frame

Discussion in 'Building' started by xdrive, 2 Nov 2019.

  1. xdrive

    xdrive

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    Hi.

    Just been to house to see how builders getting on.

    Noticed they have used old 3x2s instead of 4x2s. He said they are good enough. I'm concerned about insulation.

    He has also cut joists short. They are now 3 inch on wall plate. Again he said that's so the plywood can go on outside. Don't know why he didn't make it level with side and headpost. That way joists would sit 4 inches on wall plate.

    Here's are some pics


    IMG_20191102_143024.jpg

    IMG_20191102_174553.jpg IMG_20191102_132758.jpg
     

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  3. 23vc

    23vc

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    Why are they black? Looks like they’ve just survived a fire. I’d say using them as a substitute for tanalised timber of a larger size isn’t acceptable, but I’m not familiar with the ins and outs of your job.
     
  4. xdrive

    xdrive

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    They are from the original rafters. The wood is solid are full size 3x2s.

    Was going to use them for internal partitioning.
     
    Last edited: 2 Nov 2019
  5. tony1851

    tony1851

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    If you are concerned about the type, thickness and position of thermal insulation, have a word with your building inspector.

    Three-inch bearing of the joists on the wallplate is nothing to be worried about.
     
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  6. Leofric

    Leofric

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    Look at the first photo and tell me that shows good workmanship and materials ,anybody :!:
    Is there a specification for this dormer construction :?:
     
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  8. xdrive

    xdrive

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    Onto my front dormer now.was thinking this time to use 6*2 for front framing as I have a some left. Is that overkill?
     
  9. pilsbury

    pilsbury

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    If you used 6x2 on the sides for instance, wouldn’t you be loosing 4” off your room?
     
  10. xdrive

    xdrive

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    It's only for front frame. Will sit on steel beam which is 6 inches wide.

    Dormer cheeks are 4x2.
     
  11. paulrockliffe

    paulrockliffe

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    How old are the timbers? They look like the ones in my roof which are 110 year old pitch pine and miles stronger than any 4 X 2 C16.
     
  12. xdrive

    xdrive

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    90 years. Good strong wood. Not tanalised though.
     
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