Regular Hip/Valley And Jack Rafters - Calculated Industries Construction Master 5 4050 Pocket Reference Manual

REGuLAR HIP/vALLEY
AND JACK RAFTERS
A roof's Pitch is 225 mm and half the total
span is 1800 mm. Find the lengths of the
Common, Hip/Valley and Jack rafters. Also
find the incremental jack adjustment and
the cut angles. (Jack rafters at 400 mm On-
center spacing.)
KEYSTROKE
oo
1. Find the Common rafter length:
1800MR
225Mp
d (Common)
2. Enter On-Center spacing
400MQ5 (o.c.)
3. Find the Hip/Valley rafter length and
cut angles; then the incremental jack
adjustment, Jack rafter lengths and cut
angles:
H
j
400 mm
RUN 1800.
pTCh 225.
dIAG 2237.309
OC @ 400.
h/V 2871.507
JKOC @ 400
dISplAY
0.
MM
MM
MM
MM
MM
M