13 Mar Writing About Rafter Tables
The following table is called a rafter table in the construction industry. The table is used by carpenters to calculate the length of rafters if you know the slope of a roof.
|
Roof Slope
|
Rafter
|
|
2 in 12
|
1.014
|
|
3 in 12
|
1.031
|
|
4 in 12
|
1.054
|
|
5 in 12
|
1.083
|
|
6 in 12
|
1.118
|
|
7 in 12
|
1.158
|
|
8 in 12
|
1.202
|
|
9 in 12
|
1.25
|
|
10 in 12
|
1.302
|
|
11 in 12
|
1.357
|
|
12 in 12
|
1.413
|
Mathematics:
Show the calculations used to generate the numbers in the second column.
Technical Writing:
Write out the process for using the rafter table.
Illustrate your process with one example.