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Overhead Finishes · Division 09 54 23 · Issaquah project guide

Thermo Clear Radiatafor Ceilings & Soffits.

Thermo Clear Radiata 1x6 Nickel Gap boards create continuous ceiling and soffit lines. Selected clear material limits visual interruption for a quiet, refined overhead surface.

Thermo Clear Radiata installed for Ceilings & Soffits
APPLICATION SYSTEMThermo Clear Radiata · Ceilings & Soffits
500Janka Hardness
27.0Dry Density
Verify ProductDurability Rating
20 YearMaximo Warranty
RECOMMENDED SPANS

Support Spacing

Confirm support spacing for the selected profile and interior or exterior assembly.

FASTENING PROTOCOL

Hardware & Nails

Use the stainless fastener type and placement identified by the current Maximo instructions.

SUBSTRUCTURE & CAVITY

Sub-framing Details

Flat backing plane

VENTILATION & DRYING

Air Cavity Specs

Continuous perimeter soffit vents

Material & assembly planning

Key advantages &
installation rules.

Uniform Color & Grain

Consistent light chocolate tone with straight, subtle wood grain.

Clean Joint Lines

Cataloged edges create a defined pattern when installed over a level, correctly spaced support plane.

Assembly Guidelines for Ceilings & Soffits:

  1. Blind nail through the tongue into ceiling furring strips.
STABILITYReduced movement after thermal modification

Reduced tangential movement supports more consistent joints through seasonal changes.

DURABILITYProduct-specific rating

Thermal modification reduces moisture uptake and changes nutrients used by decay fungi; confirm the rating for the selected profile.

PROCESSHeat and steam

Real wood modified without added wood-preservative chemicals.

LOCALBuilders FirstSource

Consultation and order coordination through BFS Issaquah.

Cataloged Profiles

1 Profiles available for
Thermo Clear Radiata ceilings & soffits.

Where to buy in Issaquah

Builders FirstSource Issaquah

Catalog available by consultation. Contact the Issaquah team to confirm availability, sample kits, and lead time for your selected Maximo profile.

5210 E Lake Sammamish Pkwy SE
Issaquah, WA 98029
(425) 391-8000
Monday–Friday, 7:00 AM–4:00 PM
Dealer information verified August 31, 2026. No in-stock claim is made on this site.

Request a local quote

Put this profile
on your project.

Tell us what you are building. Our team will review your wood selection and contact you to coordinate a Maximo consultation with Builders FirstSource Issaquah.

Frequently Asked Questions

Thermo Clear Radiata · Ceilings & Soffits

Can Thermo Clear Radiata ceilings be stained lighter or darker?+

A compatible stain or clear finish may change the tone, but the result depends on surface preparation and the coating system. Approve a sample on the actual profile before production.

Product and installation references

Maximo 2026 Product Catalog ↗Installation & Maintenance Guide ↗Installation Guide ↗