Lower equilibrium moisture response, improved dimensional stability, enhanced biological resistance and defined architectural profiles.
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Heat-and-steam modified real wood · Soffit · Issaquah, WA
Thermally Modified Wood
Soffit planning.
Explore the underside of an overhang, the edge of a roof and the junctions that bring it all together.
APPLICATION INSPIRATIONSoffitPROFILE · FINISH · ASSEMBLY
Wood soffits · In focus
Beautiful from every angle.
Explore the underside of an overhang, the edge of a roof and the junctions that bring it all together.
Bring warmth outdoors
A generous overhead plane connects the terrace to the home.
A finer rhythm overhead
Fine lines and natural grain bring texture to the underside of the roof.
Design the edge
The underside is a visible part of the building's silhouette.
Where two planes meet
A close view of the transition from overhead lining to screening.
Light between the layers
Contrasting planes make the wood stand out.
Carry the grain around
The junction keeps the exterior material palette connected.
Turn texture into detail
Profile lines stay visible even at the roof edge.
Extend the living space
A covered edge creates continuity between indoors and outdoors.
Follow the architecture
The lining emphasizes the changing shape of the roof.
Look closer at the transition
The material becomes most expressive at the junctions.
A visible board rhythm
A clear view of the underside and its repeating board pattern.
Warmth after sunset
Careful lighting keeps the overhead material present after dark.
Photography from the Maximo shared project library. Confirm the species, profile and finish for your own project.
Bring us your inspiration ↗Material & application
From inspiration
to specification.
Thermally modified wood is real wood whose moisture response and biological durability have been changed by controlled heat and steam. Product, species and profile still matter.
Design a protected exterior overhead surface with controlled joints, ventilation, service access, lighting coordination and a finish that can be maintained from below.
Name the manufacturer, species, exact profile, cataloged application, fasteners, finish, storage and installation requirements.
Soffit boards need a profile, fastening pattern and backing strategy coordinated with vents, recessed fixtures, edges and the adjacent cladding or fascia.
Thermal modification can reduce some mechanical properties. Use only documented applications and do not assume an automatic structural substitution.
The prefinish advantage
Coat the board
before access disappears.
Maximo guidance recommends coating siding boards on all sides before assembly. Prefinish availability, coating, color and warranty must be confirmed for the selected profile. Prefinishing before boards go overhead gives the applicator access to faces, edges and ends while the pieces are still easy to handle, helping create more consistent color and coverage.
Plan a prefinished packageControlled coverage
Confirm whether faces, backs, edges and ends are included, plus coating manufacturer, color, sheen and target coverage.
Cleaner schedule
Move eligible coating work away from installed assemblies, ladders, lifts and interference with other trades.
Consistent appearance
Controlled application and cure conditions can reduce lap marks, streaks and unfinished shrink lines.
Field discipline remains
Reseal cuts, holes and damaged coating; protect finished boards in storage and follow the approved touch-up process.
From the Maximo project library
The details that bring a space together.
Light between the layers
Contrasting planes make the wood stand out.
Follow the architecture
The lining emphasizes the changing shape of the roof.
A visible board rhythm
A clear view of the underside and its repeating board pattern.
Real projects, not exact-profile samples. Confirm the species, application and finish for your project.
A quote-ready scope
Four questions
before material selection.
Coordinate ventilation, fire, electrical and fastening requirements with the project professional. Product suitability remains profile-specific.
- 01Vented or unvented soffit assembly?
- 02Lighting, speakers or access panels?
- 03Joint rhythm and board direction?
- 04Finish continuity with siding or ceiling?
Built for the full project team
One material brief.
Different decisions.
ArchitectsProfile and application alignmentOpen project guidance →BuildersAvailability and lead-time confirmationOpen project guidance →ContractorsMachining and fastening requirementsOpen project guidance →DesignersSpecies character and color rangeOpen project guidance →HomeownersAppearance now and after weatheringOpen project guidance →
Relevant Maximo starting points
Compare a defined profile.
Not a generic wood label.
These models come from the closest cataloged application. Confirm the exact use, finish and availability before ordering.
Thermo Ash1x6 Plus S4S E4E End MatchSiding & Cladding · Ceilings & Soffits · DeckingCompare profile →Thermo Ash5/4x6 S4S E4E End MatchSiding & Cladding · Ceilings & Soffits · DeckingCompare profile →
Thermo Ayous1x6 S4S E4ESiding & Cladding · Ceilings & SoffitsCompare profile →Thermo Ayous1x6 V-Joint / Nickel GapSiding & Cladding · Ceilings & SoffitsCompare 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.
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.
Material planning FAQs
Specify first.
Price second.
Is Thermally Modified Wood automatically the best choice for wood soffits?+
No. Thermally Modified Wood has useful strengths, but the decision still depends on exposure, grade or product, profile, assembly, finish, maintenance and budget. This guide makes those inputs visible before a quote is requested.
Can Maximo Thermo be used for this soffit project?+
Only when the exact profile is documented for the intended application. The profiles shown here are selected from the closest cataloged application, but the project team and BFS Issaquah should confirm the final profile and assembly.
Why discuss prefinishing before installation?+
Prefinishing before boards go overhead gives the applicator access to faces, edges and ends while the pieces are still easy to handle, helping create more consistent color and coverage. Prefinishing does not eliminate field-cut sealing, touch-up, installation care or future maintenance.
Where can I ask about availability in Issaquah?+
Submit the project brief through this site or contact Builders FirstSource Issaquah. This site does not claim live inventory, pricing or guaranteed lead time.
Technical sources & limitations
Product suitability, prefinish availability, coating compatibility, live inventory, pricing and lead time must be confirmed for the selected profile and project.