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74 — C
ONSTRUCTION
M
ASTER
®
P
RO
/ T
RIG
/ D
ESKTOP
ROOFING MATERIALS
The Roof function solves for the amount of bundles and squares for
standard gable-end style roofs. Bundles are based on a coverage
area of 33.33 square feet, and squares are based on 100 square feet.
Roof Covering —
Entering Pitch, Length and Width
Find the roof area and number of roofing squares, number of bundles
and 4x8 sheets required for a 10-inch pitch roof covering a floor area
of 14 feet by 11 feet. Also calculate the plan area.
KEYSTROKE DISPLAY
1. Enter pitch and floor area*:
o o 0.
1 0 i p PTCH 10 INCH
1 4 f l LNTH 14 FEET 0 INCH
1 1 f W WDTH 11 FEET 0 INCH
2. Find roof area:
Ç d ROOF 200.4631 SQ FEET
3. Find number of roofing squares:
d SQRS 2.00
4. Find number of bundles:
d BNDL 6.01
5. Display bundle size/area:
d B-SZ 33.33 SQ FEET
6. Find number of 4x8 sheets:
d 4X8 6.26
7. Display stored pitch:
d PTCH STORED 10 INCH
8. Find floor/plan area:
d PLAN 154. SQ FEET
*Note: If you know the area (and do not need to calculate it), once you have entered
the pitch, enter the area and label it as square feet, then press
Ç d
. For example,
if the plan/floor area is 100 square feet, enter
1 0 0 f f Ç d
.
For Trig Model (4080) Users:
*Note: As this model does not have
l
and
W
keys, you must calculate area the
standard way (e.g., L x W, or entering 154 square feet), then press
Ç d
.
4065UG-E-B 6/9/04 1:50 PM Page 74
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