Support Spacing
Confirm support spacing for the selected profile, orientation and interior or exterior condition.
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Overhead Finishes · Division 09 54 23 · Issaquah project guide
Thermo Ayousfor Ceilings & Soffits.
Thermo Ayous is a lightweight option for expansive ceilings and covered soffits. Its clear-grain brown face and fluted or jointed profiles support clean overhead planes when correctly supported and fastened.
APPLICATION SYSTEMThermo Ayous · Ceilings & Soffits
450Janka Hardness
24.0Dry Density
Verify ProductDurability Rating
20 YearMaximo Warranty
Hardware & Nails
Use the stainless fastener type and placement allowed by the current profile instructions.
Sub-framing Details
Flat backing plane / resilient channels
Air Cavity Specs
Exterior soffits require continuous perimeter ventilation
Material & assembly planning
Key advantages &
installation rules.
Easier Overhead Handling
Low density can reduce board weight during ceiling and soffit installation; follow project lifting and access plans.
Fluted Visual Texture
The Fluted #5 profile adds rhythm and shadow; acoustic performance requires assembly-specific test data.
Assembly Guidelines for Ceilings & Soffits:
- Blind-nail through the tongue at a 45-degree angle into ceiling furring.
- Allow 1/4" expansion clearance along perimeter walls.
Reduced tangential movement supports more consistent joints through seasonal changes.
Thermal modification reduces moisture uptake and changes nutrients used by decay fungi; confirm the rating for the selected profile.
Real wood modified without added wood-preservative chemicals.
Consultation and order coordination through BFS Issaquah.
Cataloged Profiles
3 Profiles available for
Thermo Ayous ceilings & soffits.
1x6S4S E4ELightweight, smooth and evenly toned for clean siding, ceiling and wall installations.Compare profile →
1x6V-Joint / Nickel GapA crisp tongue-and-groove profile that creates controlled shadow lines with easy handling.Compare profile →
1x6Fluted #5A rhythmic fluted surface that adds texture while keeping Ayous light and workable.Compare profile →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.
Issaquah, WA 98029
(425) 391-8000
Monday–Friday, 7:00 AM–4:00 PMDealer information verified August 31, 2026. No in-stock claim is made on this site.
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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 Ayous · Ceilings & Soffits
Can Thermo Ayous be used in high-moisture indoor areas like saunas or indoor pool ceilings?+
Confirm the exact profile, coating, fasteners, ventilation and temperature limits for the proposed wet or high-heat interior. The heat-and-steam process does not replace project-specific indoor-air, fire or assembly review.
Product and installation references