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Size on 5 degree angle

Discussion in 'General Discussion Forum' started by Dan, May 1, 2012.

  1. Dan

    Dan Administrator Staff Member Administrator 2016 Tipping Competitor

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    Righto I just want someone to check my math here.
    I am putting in a reverse roof, basically a roof under a deck to drain the water away and essentially make the area somewhat weather proof.
    I am just using corry for it and am going off the base measurement for laser light which requires the largest pitch of the stuff available on the market of 5 degrees.

    So the distance it has to cover is 3.45m roughly though a gutter means this will likely shrink to around 3.35m

    So if my math is correct and it has been at least 13 years since I last calculated the size of a side on an angle but the drop from top to bottom on a 5 degree angle across 3.45m is roughly 30cm
    Does that sound right to everyone else or have I got my units wrong somewhere?

    This just seems like a large pitch for a smallish area. I can probably peg this bac to 3 degrees if needs be also
     
  2. globaleagle

    globaleagle Où est mon chapeau Premium Member 2016 Tipping Competitor

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    yes.*

    the lack of responses made me and my friend Jim beam lol.

    *I accept no liability for this answer.

    In on page one!

    I am thinking of deleting this.

    edit, it does sound right.
     
  3. Boofhead

    Boofhead Active Member Premium Member 2016 Tipping Competitor

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    Hi Dan, I used this calculator http://ostermiller.org/calc/triangle.html and it shows 270mm so, yeah, pretty close.
     
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  4. Dan

    Dan Administrator Staff Member Administrator 2016 Tipping Competitor

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    excellent thank you. I am going to buy roof sheeting that has a 2 degree angle because 30cm really kills the head room :)
     
  5. globaleagle

    globaleagle Où est mon chapeau Premium Member 2016 Tipping Competitor

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