The Roof function calculates the following material information for a gable end roof:
Roof Area
Number of Shingle Squares
Floor plan area
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:
Floor Plan Area, provided by either of the following:
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:
Tap the [Edit Sizes] button to activate the size editor.
Now tap the [+] button to add a new size
tap in 4[Feet]x10[Feet][done] to enter your 4'x10' sheathing.
tap [Cancel] to finish
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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