Roof Function [Roof]   Enhanced Roof Function

The Roof function calculates the following material information for a gable end roof:
In addition, you can also have the Roof Function calculate quantities of custom size material - e.g. sheathing, underlayments and shingling.  See the examples below to see how to do this.

To perform these calculations, the Roof Function uses the following stored values:
Examples

1. [Rise], [Run], [Length] and [Width] given.
    Let's calculate how much 4'x10' sheathing
    is needed for a roof that has an 11' rise,
    a 16' run on a house with a 32' width and
    a 42' length.
Input
[clr][clr]   
11 [Feet] [Rise]
16 [Feet] [Run]
32 [Feet] [ Width ]   
42 [Feet] [ Length ]
[Conv] [Roof]
Display

    0
Rise
    11ft
Run
   16ft
Width
    32ft
Length
    42ft
see results, below


You can see that it tells us how many 10'x10' bundles of shingles our roof needs, but there doesn't appear to be any sheathing?  No problem, just add it!  Just do the following:



And now your results have been updated to include 4'x10' sheathing.


2: Enter a floor plan area and use the last
    entered [Pitch].  This example assumes
    8” as the last entered pitch.
Input
1300 [Feet] [Feet]
[Conv] [Roof]
Display

   1300ft2
see results, below



Note that if a Material Size (for which you want to calculate an estimated usage) is missing, you can add it using the [Edit Sizes] button followed by the [+] button.

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