Envello holds its shape, colour and finish through every season. Resistant to impact, fire, rot and algae, it is engineered to withstand the elements without compromise. The result is enduring performance with minimal upkeep.
Envello holds its shape, colour and finish through every season. Resistant to impact, fire, rot and algae, it is engineered to withstand the elements without compromise. The result is enduring performance with minimal upkeep.
Envello holds its shape, colour and finish through every season. Resistant to impact, fire, rot and algae, it is engineered to withstand the elements without compromise. The result is enduring performance with minimal upkeep.
Millboard Envello is a premium timber-alternative cladding designed to give the look and feel of natural timber, without the usual movement, maintenance or durability concerns.
The core is made from a mineral resin blend of crushed limestone, fibreglass and polyurethane, making it stable, inert and resistant to rot. It handles much like timber and can be worked with standard woodworking tools.
The surface is made from Lastane, with the grain hand-moulded from real oak boards. The colour is then hand-applied and finished with a 2K coating, giving each board natural tonal variation and a realistic timber texture.
Envello Cladding is engineered for performance across New Zealand's demanding conditions, with scope extending to wind zones up to and including extra high as defined in NZS 3604:2011. Designed for vertical orientation on low-rise residential and select commercial projects, the system suits both timber and lightweight steel framing, and can be applied across two-storey buildings with an inter-storey junction. Installation must follow the conditions set out in E2/AS1 and NZS 3604:2011 to ensure long-term weathertightness and compliance.
Key specification points:
Suitable in wind zones up to and including extra high (NZS 3604:2011), or to a design wind pressure (ULS) of 2.1 kPa
Vertical orientation only, on low-rise residential and some commercial projects
Compatible with timber or lightweight steel framing (thermal break required for steel)
Can be used on two-storey buildings with an inter-storey junction
Building must be under 10m in height and more than 1m from the boundary
Stainless steel fixings required throughout
Single board spans up to 3600mm
Full scope, limitations and technical detailing are set out in the Envello Vertical Cladding Design Guide.
Download the Envello Cladding Design Guide
Garage Doors
Soffits
Interior Walls
Interior Ceilings
Cladding to Decking Detailing
Envello Collections Specifications
Available in Shadow Line+ and Board & Batten+ profiles, Envello's resin mineral construction delivers consistent Prime grade quality across every board. Finished with a durable Lastane® surface and engineered from a polymer resin core, each profile is built for reliable, long-lasting performance.
Specifications | Envello Collections |
|---|---|
Grade | Prime |
Construction | Resin Mineral Board |
Core | Polymer Resin |
Thickness | 18mm (SL) and 26mm (B&B) |
Width | 181mm W |
Length | 3600mm L |
Surface Finish | Lastane® Surface |
The Envello Vertical Cladding Design Guide is the reference point for specifying and detailing both Shadow Line+ and Board & Batten+ with confidence. It covers the full system — from wall underlays, framing and cavity battens through to base junctions, corner detailing, window and door flashings, and parapet conditions — giving specifiers the technical grounding needed to design a compliant, weathertight façade from the ground up.
Detailed technical drawings accompany each junction and condition, providing the dimensional accuracy and construction detail required to translate the guide directly into working drawings.
Compliance is demonstrated under CodeMark CMNZ70204, addressing NZBC clauses for structure, durability, external moisture and hazardous building materials, with a fire classification of D-s3, d0 (NZ Fire Rating Group 3). Every finishing detail in the guide — from inter-storey junctions to transitions with brick, render and decking — is drawn from tested, documented practice, ensuring the system performs as intended across the full range of design conditions it's built for.
Download the Envello Cladding Design Guide View the Envello Cladding CodeMark Certificate Specify on Masterspec View on Productspec View on Smartspec View on Programa View on EBOSSCompliance & Testing
NZ Building Code Clause | Compliance Pathway | Demonstrated by |
|---|---|---|
B1 STRUCTURE (2ND EDITION) B1.3.1, B1.3.2, B1.3.3 (a, f, h, j, q), B1.3.4 | Codemark CMNZ70204 | Pass Document – TTB |
B2 DURABILITY (3RD EDITION) B2.3.1, B2.3.2 (b) | Codemark CMNZ70204 | PS2 – Provided by The Feds |
C3 FIRE AFFECTING AREAS BEYOND THE FIRE SOURCE C3.4(a) | Tested to BS EN 13501-1 | Classification D-s3, d0 – NZ Fire Rating Group 3 |
E2 EXTERNAL MOISTURE (4TH EDITION) E2.3.2, E2.3.3, E2.3.5, E2.3.7 | Codemark CMNZ70204 | VM1 Test Certificate |
F2 HAZARDOUS BUILDING MATERIALS (1ST EDITION) F3.2.1 | Codemark CMNZ70204 | PS2 – Provided by The Feds |
Technical Guides & Resources
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Envello is a low-carbon material that has been rigorously tested to ensure our production has minimal impact on the environment. While most composite cladding boards are thermoplastic (melted plastic mixed with wood), the structural core of Envello is a blend of natural minerals bonded in a polymer resin – such composite materials are designed to provide mechanical strength, chemical resistance and durability.
Envello Cladding can be recycled or reused in a variety of ways. It can be reground and recycled as a Polyurethane filler and used within building materials, such as concrete.
Every detail, one point of contact. Speak to a Forté specification consultant and get the technical support, documentation, and product knowledge you need to specify and install Envello Cladding with confidence — all from one place.
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