Area For Roofing Materials - Calculated Industries Construction Master III User Manual

Area for Roofing Materials

You're ordering roofing materials for a roof
with a 5-in-12 Pitch, an overall span of 27 feet
and a length of 34 feet 6 inches (across). How
many squares are there?
The three steps to this problem are: (1) Find
the common rafter, (2) Multiply it by the building
length, and (3) Multiply this figure by two since
you're ordering materials for both sides of the
roof.
COMMENTS
Clear calculator
Step 1 — Find Common Rafter Length
Enter Pitch
Find and enter Run
Find common rafter
Convert to decimal feet [Feet]
Step 2 — Find Area of One Side
Multiply by length
Step 3 — Find Area of Both Sides
Multiply by 2 sides
Divide by 100 sq. ft.
for roofing squares
36 — Construction Master III
KEYSTROKES
[On/C] [On/C]
5 [Inch] [Pitch]
27 [Feet] [÷] 2 [=]
[Run]
[Diag]
Answer: 14 FT 7-1/2 IN
Answer: 14.625 FT
[x] 34 [Feet]
6 [Inch] [=]
Answer: 504.5625 SQ FT
[x] 2 [=]
Answer: 1009.125 SQ FT
[÷] 100 [Sq]
[Feet] [=]
Answer: 10.09125 squares
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