Page 43
Roofing Materials
The “Roof” function nd the area of a roof and the amount of bundles and squares for gable-end roofs.
Bundles coverage area = 33.33 Square Feet / Square coverage area = 100 Square Feet
Remember to press to clear entries in between problems.
On/C On/C
ROOF COVERING - WORKING WITH KNOWN PITCH AND FLOOR AREA
Example: You are constructing a roof over a room with a oor area of 16 Feet by 13 Feet. The roof has
a 12 Inch pitch. Find the roof area and then calculate the number of roong squares, bundles, and 4 x
8 sheets required for the project. Then display the oor area.
KEY INPUT & DISPLAY
0
1. Enter Pitch and oor area*:
PTCH 12
Inch
LNTH 16
Feet
0
Inch
WDTH 13
Feet
0
Inch
ROOF 294.1564
SQ Feet
2. Find roof area:
SQRS 2.94
3. Find number of roong squares:
BNDL 8.82
4. Find number of bundles:
Cont’d on page 45
*If you already know the oor area, once you have entered the Pitch, enter the area as Square Feet, then press
Example, if the plan/oor area is 100 Square Feet, enter .
Diag
Feet
Conv
1 0
Diag
Conv
0
Feet
PTCH 12
Inch
7. Display stored Pitch:
PLAN 208
SQ Feet
8. Find oor/plan area:
STORED
4x8 9.19
6. Find number of 4 x 8 sheets:
B-SZ 33.33
SQ Feet
5. Display bundle size/area:
On/C On/C
Pitch
Inch
1
2
Length
Feet
6
1
Width
Feet
1
3
Diag
Conv
(Roof)
Diag
Diag
Diag
Diag
Diag
Diag