Attachments - Roof Extensions
(Revised:
09/26/2008)
The Roof Extension tab is used to locate and define
Roof Extensions along the rake of an end wall. This feature has automated flexibility
to modify the size of the shape without losing roof extension data.
Exception:
If a Predefined Shape is revised to a different shape, all located and defined
Roof Extensions will be removed with the original shape.
Roof
Extensions can be located full span or partial span.
Adjustments
for extending roof extensions and skewing the corner options are not available
as a product offering.
„
Notes:
The ends of Roof Extensions project 90
degree's from the End wall they are located along.
This may cause minimal geometric
problems at Skewed Sidewall Corners or at Skewed End walls that may require
minor adjustments to Secondary and Panels.
„
Warning:
It is possible to locate a Roof Extension
on a Skewed Sidewall. If you attempt to create this condition, your results may
not be what you really want. Use the canopy options for this condition.
Size:
Left
Projection
Enter
the horizontal dimension that your roof extension projects from the wall along
the left edge. This is dimensioned to the out of the steel structure, not to
the out of trim or flashing.
Right
Projection
Enter
the horizontal dimension that your roof extension projects from the wall along
the right edge. This is dimensioned to the out of the steel structure, not to
the out of trim or flashing.
„
Notes:
The ends of Roof Extensions project 90
degrees from the End wall they are located along.
This may cause minimal geometric
problems at Skewed Sidewall Corners or at Skewed End walls that may require
minor adjustments to Secondary and Panels.
Secondary Options:
One
Piece
This
radio button will set the purlin definition of the end bay purlins to extend
into the roof extension.
Location, Start Dimension, and End
Dimension:
Full
Span
This
radio button sets the overall length of the roof extension to the entire length
of the end wall.
Partial
Span
This
radio button sets the overall length of the roof extension to differ from the
entire length of the end wall.
Additional
dimensioning options are activated including start and end options.
Start
- Dimension
Enter
the dimension from the Left Edge of the wall as you are facing that wall to the
end of the roof extension.
A
positive dimension moves the left edge of the roof extension toward the right
edge.
A
negative dimension is not allowed on roof extension.
To
form a canopy-to-rake extension corner, use the canopy ''extension'' option.
End -
From Start Dimension
This
radio button is active with the Partial Span option.
When
selected, the End Dimension of the roof extension will be dimensioned from the
Start Dimension.
End -
Right Edge
This
radio button is active with the Partial Span option.
When
selected, the End Dimension of the roof extension will be dimensioned from the
right edge of the wall as you are facing that wall.
End -
Dimension
Enter
the dimension from the Right Edge of the wall as you are facing that wall to
the end of the roof extension.
A
positive dimension moves the right edge of the roof extension toward the left
edge.
A negative
dimension is not allowed on roof extension.
To
form a canopy-to-rake extension corner, use the canopy ''extension'' option.
Standard
Controls:
See also: