Jump to content


Photo

Window Flashing Formula


  • Please log in to reply
5 replies to this topic

#1 Bryan Ireland

Bryan Ireland

    Advanced Member

  • Members
  • PipPipPip
  • 43 posts

Posted 18 October 2017 - 01:58 PM

I am trying to get a formula for window flashing. We use 4" and 6" Tyvek flashing tape around all 4 sides of the window opening. Depending on if it is a 2x4 or 2x6 wall, it's 4" flashing or 6" flashing. 

 

This is what I am working on, but it isn't reporting. I can do a general formula but it doesn't distinguish between 2x4 or 2x6. 

 

if wall_exterior
   if between (width, 3",5")
      if matches (type, window, door, sliding)
         list ((width*2)+(height*2)/2,4" )
      endif
   endif
endif
 
Any ideas? Thanks!

Attached Thumbnails

  • 4.png


#2 Jonathan Barto

Jonathan Barto

    Advanced Member

  • Members
  • PipPipPip
  • 131 posts
  • LocationPittsburgh, Pa

Posted 16 February 2018 - 12:54 PM

Morgan

 

I would do the following.

 

1.  Have it calculate material of wall containing regions of....  then select all your studs types.

2.  set section limit of the region wall thickness.

 

So you will have 2 formula's 

 

one for the 2x6 walls and one for the 2x4 walls



#3 Philip Frank

Philip Frank

    Advanced Member

  • Members
  • PipPipPip
  • 559 posts
  • LocationMaine, USA

Posted 16 February 2018 - 03:18 PM

Thewidth in your formula is referencing an "Opening" width. You can't get the width of a stud wall from an "Opening Group" material definition. 



#4 Sam Allen

Sam Allen

    Advanced Member

  • Members
  • PipPipPip
  • 133 posts
  • LocationSan Antonio, Texas

Posted 17 February 2018 - 11:45 AM

Phillip...could you show how the correct formula should look?



#5 Philip Frank

Philip Frank

    Advanced Member

  • Members
  • PipPipPip
  • 559 posts
  • LocationMaine, USA

Posted 19 February 2018 - 06:12 AM

This formula dumps the values into another formula (accumulates into the "Window Wrap" material def). I added the "Thickness" selection criteria to show how to specify the wall thickness, but my setup doesn't require this. You would have to create 2 separate "Window Wrap" material defs (one for 2x4 and one for 2x6) and then create 2 material defs to accumulate them into  (one for 2x4 and one for 2x6​)

Attached Thumbnails

  • Wnd Wrap.JPG

  • RUSSELL LITTEN likes this

#6 Sam Allen

Sam Allen

    Advanced Member

  • Members
  • PipPipPip
  • 133 posts
  • LocationSan Antonio, Texas

Posted 19 February 2018 - 01:57 PM

Thanks!!






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users