Installation Guide

Siding Installation Guide / v20190507US 8
Expansion and Contraction table of values for North America,
Canada, Australia and Asia (between 20 N and 20 S in latitude)
3 8 9 10 12 13 13 16 18
32 1/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16 5/16
Gap
(in)
41 1/16 2/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16
50 1/16 2/16 2/16 2/16 2/16 2/16 3/16 3/16 3/16
59 1/16 1/16 1/16 2/16 2/16 2/16 2/16 2/16 3/16
68 3/64 1/16 1/16 1/16 1/16 1/16 2/16 2/16 2/16
77 3/64 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16
86 3/64 3/64 3/64 3/64 3/64 1/16 1/16 1/16 1/16
Installation Temperature (Farhenheit)
Length (Feet)
Expansion and Contraction Values
NewTechWood siding boards will experience expansion and contraction with changes in
temperature. Expansion and contraction are most signicant where extreme temperature
changes occur. Fastening the deck planks according to the gapping requirements noted
in the following table accommodates for this movement.
3 8 9 10 12 13 13 16 18
14 2/16 4/16 4/16 5/16 6/16 6/16 6/16 7/16 8/16
Gap
(in)
23 1/16 3/16 4/16 4/16 5/16 5/16 6/16 7/16 7/16
32 1/16 3/16 4/16 4/16 5/16 5/16 5/16 6/16 7/16
41 1/16 3/16 3/16 3/16 4/16 4/16 5/16 6/16 6/16
50 1/16 2/16 3/16 3/16 4/16 4/16 4/16 5/16 5/16
59 1/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16 5/16
68 1/16 2/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16
77 1/16 2/16 2/16 2/16 2/16 2/16 3/16 3/16 3/16
86 1/16 1/16 1/16 2/16 2/16 2/16 2/16 2/16 3/16
95 3/64 1/16 1/16 1/16 1/16 1/16 2/16 2/16 2/16
104 3/64 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16
Installation Temperature (Farhenheit)
Length (Feet)
Expansion and Contraction table of values for Europe, Russia,
Northern Asia (between 40 N and 20 N in latitude)