Instructions / Assembly

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ESTIMATING & ORDERING
Step 2 (cont.)
DIAGRAM 1A
10'
10'
40'
30'
20'
EAVE
Section B
RIDGE
Section A
EAVE
GABLE GABLE
EAVE RIDGE EAVE
GABLEGABLE
VALLEY
H IP
Start with section A. The eave length is 40’ and the ridge length is 30’, with a difference of 10’.
You will need 23 pcs. X 10’ to reach the area where the hip starts. Remember that you have 10’
remaining to cover the area, or 8 more panels. Determine the length of each panel going into
the valley by calculating the roof’s pitch. Pitch is how much rise your roof has in inches for every
foot of horizontal run. Use the Hip and Valley Chart below to ensure you order the correct panel
length for hips and valleys, keeping in mind, that panels are cut to the nearest full inch. For exam-
ple, Diagram 1A is a 4/12 pitch (4/12p). According to the chart below, we know each panel will be
17” shorter. Since we are measuring from the longest point of the angle, your rst piece will be
the same length as the full eave to ridge measurement and each piece after will be 17” shorter.
(Your list of Section A should look like Sample D on page 9.)
Hip & Valley Chart
When determining the panel length needed for a hip or valley, the panel will either be shorter or
longer as you go up or down the hip or valley. The chart below shows you the amount to add or
subtract from each panel according to the pitch of your roof.
3/12p = 16 1/2” 6/12p = 18” 9/12p = 20”
4/12p = 17” 7/12p = 18 1/2” 10/12p = 20 3/4”
5/12p = 17 1/2” 8/12p = 19” 11/12p = 21 3/4”
12/12p = 22 3/4”
Example: 3/12 pitch = 16 1/2” panel length
Note: When determining panel length, always round up to the next full inch.