Sheathing Cut; Regular Hip/Valley And Jack Rafters - Calculated Industries Sheet Metal/HVAC Pro Calc User Manual

Sheathing Cut

You have framed an equal Pitch roof and need to apply the roof
sheathing. Find the distance from the corner of the sheathing so that
you can finish the Run at the Hip rafter and cut the material. The
Pitch is 6 Inches and you are using 4-Foot by 8-Foot plywood, with
the 8-Foot side along the plate.
KEYSTROKE
1. Enter Pitch:
o o
6 i p
2. Enter width of plywood:
4 f d
3. Find length of sheathing:
R

Regular Hip/Valley and Jack Rafters

You're working with a 7/12 Pitch, and half your total Span is 8 Feet 5
Inches:
(1) Find Point-to-Point length and cut angles for the Common rafter;
(2) Find the length and cut angles of the adjoining Hip (or Valley)
and;
(3) Find the Regular Jack rafter lengths and cut angles (Jack
rafters at 16 Inches On-Center spacing).
KEYSTROKE
1. Find Common rafter length and Plumb and Level cuts:
o o
8 f 5 i R
7 i p
d
d
d
PTCH 6
R 4
FEET
X 3 6-15/16
FEET
X 8
FEET
PTCH 7
R 9 8-15/16
FEET
PLMB 30.25644°
LEVL 59.74356°
(Cont'd)
U ' G
SER S UIDE
DISPLAY
0.
INCH
0
INCH
INCH
DISPLAY
0.
5
INCH
INCH
INCH
— 89