Enter your ZIP to see which local requirement this meets.
MOSO Bamboo Thermo Siding is listed for wildfire-area walls as horizontal boards over specified sheathing and framing.
The wall described in listing 8140-2278:0504 uses compressed, thermally treated bamboo strips formed into nominal 5-3/8-by-3/4-inch boards. The boards install horizontally over 5/8-inch DensGlass sheathing on 2-by-4-inch Douglas fir studs spaced 16 inches on center.
OSFM identifies SFM 12-7A-1 as the test protocol for this exterior-wall assembly. Match the bamboo boards to the named backing and framing when comparing proposals. Neither the Thermo name nor the siding's appearance supplies the concealed sheathing requirement.
The manufacturer's instructions and product data sheets are the next references for installation details, as specified by the handbook. Confirm the exact GOVmotus listing and the supplier's horizontal siding product before specification. That check should preserve the nominal board dimensions, DensGlass thickness and stud layout as one described wall construction.
Documented attributes
Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.
“MOSO Bamboo Thermo Siding" boards are made of compressed thermally treated bamboo strips. FireApproved. https://fireapproved.com/materials/moso-north-america-inc-moso-bamboo-thermo-siding-boards-are-made-of/. Last verified 2026-08-23.