JSC Thermally Modified Timber by JSC

JSC Thermally Modified Timber

JSC

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ThermoPine

Jennian Homes Olymic Committee Home with TMT Taiga 7

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Description

JSC TMT® is a thermally modified timber range suitable for cladding, panelling, battens, and other interior and exterior applications. Modified using only heat and steam, this non-toxic timber solution offers enhanced durability, stability, and long-term performance in a wide range of New Zealand conditions.

The JSC TMT range includes TMT Taiga, TMT Amba, and TMT Taxon; each offering distinct tones and grain characteristics to suit a variety of architectural styles.

*JSC also now offer ThermoPine which is a Thermally Modified Radiata Pine suitable for interior applications — Panelling on walls and ceilings and screens & battens.

Key Features

Thermally modified using heat and steam only – no chemicals or adhesives
Exceptional dimensional stability due to reduced moisture absorption and modified cell structure. Able to accept darker coatings with significant reduction in dimensional movement.
Durability — The TMT process dramatically reduces the occurrence of fungal decay by removing the food source and reducing the equilibrium moisture content of the timber.
Available in feature and clear grades with dressed, wire-brushed or bandsawn finishes
Accepts oil and water-based coatings very well including darker tones (Blacks)
Non-toxic and low-emission – suitable for interior use. Premium quality that is responsibly sourced. There is no presence or release of added toxic substances during the building life.
Certified under JSC Cladding Systems (CodeMark)
Certified Premium Quality — Truly natural product with certified quality; all JSC TMT® products are sourced from reliable and world-renowned suppliers that are leaders in the timber thermal modification process.
Proven performance in demanding environmental conditions
Available in three product options — Taiga, Amba, and Taxon — to suit a wide range of design preferences

Ranges

JSC TMT — Thermally Modified Timber

NZ-Owned Business

Post-Consumer Recyclable Content

Scope of Use

Suitable for use as cladding, panelling, and exterior battens in residential, commercial, and civic construction
Proven to perform in New Zealand’s high wind zones, coastal and high UV exposure regions
Can be used in environments subject to frequent rain, humidity, and temperature variation
Compatible with coated or uncoated applications, including oil- or water-based systems
Interior applications include feature walls, sarking, ceilings, and joinery
ThermoPine is only suitable for interior applications

Limitations on Use

Must be installed and maintained in accordance with JSC’s installation/specification/maintenance and coating guidelines
Exterior use as cladding requires coating as part of JSC's CodeMark-certified cladding system
Coating selection and detailing must align with environmental exposure and project-specific requirements
Not suitable for structural applications
Recommend Stainless Steel fastenings, to avoid leaching

Contact JSC for compatibility with specific systems or fixings.

Statement of Building Code Compliance

JSC TMT® products meet the performance requirements of the New Zealand Building Code:

B2 Durability: TMT is proven to provide long-term performance as required for exterior timber applications
F2 Hazardous Building Materials: No added toxic substances are present or released
E2 External Moisture: When used as part of JSC’s certified cladding system
Additional compliance under CodeMark certification as part of the JSC Cladding Systems

In-Service History

JSC TMT® has been used successfully across a growing number of New Zealand residential, commercial, and educational projects. Backed by global in-service history from world-leading suppliers, thermally modified timber has demonstrated strong performance in harsh climates for over 20 years.

Other Performance Attributes

Timber tone naturally deepens through thermal modification, offering warm appearance
Accepts dark coatings with minimal risk of dimensional movement
Retains visual appeal over time in exterior conditions with appropriate cleaning and coating maintenance
Low-VOC coatings available to support healthier interior environments