Cambia sidingCambia heat treated lumber

Cambia Thermally Modified Wood

Building Products

The enhanced properties of Cambia thermally modified wood allow it to meet the demands of a lot of challenging exterior applications without premature failure or continuous maintenance. Most wood species can be thermally modified with excellent results. Cambia building products are made from thermally modified yellow poplar.

Yellow poplar has several advantages that make it a particularly good choice for thermally modified building products.

  • Yellow poplar is an abundant component of the sustainably-managed eastern US temperate forests
  • Yellow poplar is fast-growing and relatively straight-grained
  • Yellow poplar offers outstanding lengths and widths
  • Yellow poplar is stronger than many structural softwood species such as spruce, fir, and most pines while similar in weight
  • Yellow poplar responds beautifully to thermal modification.

Yellow-poplar is the tallest hardwood tree in North America, and grows throughout the Eastern United States. The tree maintains a straight trunk and generally does not form double or multiple leaders. It can grow from 80 to 100 feet tall and trunks become massive in old age.

In the late 19th century, yellow poplar lumber was used for the framing and siding of houses. Many of the historic houses and farm buildings that dot the landscape in eastern states testify to yellow poplar's strength and durability.

Mechanical Properties Comparison

Yellow Poplar vs. Cedar and Hemlock, softwoods commonly used in construction.

Common Name Specific Gravity MOE
x106
lbf/in2
MOR
lbf/in2
Parallel
lbf/in2
Hardness
lbf
Shear
lbf/in2
Yellow Poplar 0.42 1.58 10,100 5,540 540 1,190
Western Red Cedar 0.34 1.11 7,500 4,560 350 990
Hemlock (Western) 0.44 1.63 11,300 7,200 540 1,290