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Thread: Rake board

  1. #1
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    Rake board

    I have always had trouble setting 6" rake boards on 8" roofs
    As you can see here, it really shows.
    Does anyone know how to allow the rake or "Box cornice", to show smaller than, say, a 10" rafter roof system?
    Thanks!
    Attached Thumbnails Attached Thumbnails Rake board-rake-board.png  

  2. #2
    BIM there, done that cliff collins's Avatar
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    Are you using the Fascia Tool--with a Profile family?

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    Member BLothian's Avatar
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    I'm not sure I really understand the question, can you make it a little clearer what the issue is?

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    That picture shows an 8" gable roof with a 10" shed roof coming into it.
    That is a 8" Fascia used. As you can see, the 8" fascia doesn't even cover the 8" roof, much less the 10"
    Often times, I try to not even use fascias because of this, but here, I would like to somehow (in 3D) show a smooth transition. I think I could by joining the fascias with join tool after I set them up properly.
    We, often times only use 6" fascias and rakes (and box cornices) in this part of the world.
    Thanks!

  5. #5
    BIM there, done that cliff collins's Avatar
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    You can use a Generic Model for this. Model-in place is one way, you can get exactly the dimensions/shape you need.

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    Member kowen1208's Avatar
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    If I understand correctly, part of your problem is the fascia covering the rake completely. This comes down to modeling the roof and fascia how they'll be built. Do the rakes and eaves need to be the same thickness as the structure, or can 4" or 6" outlookers be used?

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    Yes, "Lookouts" can and would be used in real life.
    But im not sure how to model it.
    I think I will build my roof out of 2x6s and set it up like it would be 2x8s.

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    Moderator cellophane's Avatar
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    When you say 8" Gable Roof, is that an 8/12 pitch, or an 8" thick roof assembly?

    That aside, if you place your fascia in one pass, or add additional segments to an existing fascia your 3D & elevation joins between the different pitches should cleanup without any issues.

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    I mean an 8" roof Assembly.
    And yes, I do find that when you place all the fascia, it does clean up nicely.
    Thanks for all the help! I'll get through this by learning a little bit and go on to another procedure where, hopefully I'll learn a little bit Thanks again!

  10. #10
    Member kowen1208's Avatar
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    Quote Originally Posted by glkirk View Post
    Yes, "Lookouts" can and would be used in real life.
    But im not sure how to model it.
    I think I will build my roof out of 2x6s and set it up like it would be 2x8s.
    In cases like this, I do two roofs:
    The first roof has the correct structural depth and has no overhang.
    The second roof has the the depth of the outlookers and has an overhang.

    Then line them up to the proper height and join their geometry (first pick should be the structural roof, then the outlookers).

    I use this whenever I have a project with a pitched roof that uses TJIs or something similar for the roof framing.

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