Specification and Compliance

Technical documentation for New Zealand projects.

Everything marked published below is downloadable now from our Resources page.

Test evidence

Moisture and NZBC Clause E3

Flooring & Walls and Ceilings products were tested to ISO 4760:2022(E), modified, which measures topical moisture resistance across an assembled joint. A dye solution was held over the joint for 24 hours at 20°C and 65% relative humidity.

Both passed at Grade 1, no change, the top of the scale. Wet swell measured 0.05 to 0.14mm, recovering to 0.01 to 0.03mm, with no migration of water to the underside of any specimen.

• Engineered oak flooring, 20mm × 240mm. Report 1622873.6
• Engineered oak wall and ceiling board, 12mm × 120mm. Report 1622876.9R

Our Alternative Solution Statement for NZBC Clause E3 sets out the full test data, the method and the scope, and is published on our Resources page. We do not recommend engineered oak on a bathroom floor, and showers and any area subject to standing water sit outside it entirely.

Reaction to fire

The flooring was tested by CSIRO to AS ISO 9239.1 and returned a critical radiant flux of 5.0 kW/m². That is the measure that applies to a floor covering, and the report is published in full.

For wall and ceiling linings, our manufacturer's technical specification records Group 3 with the standard coating and Group 1-S with an intumescent coating such as Firezone 92. Confirm the group number your occupancy requires with your fire engineer, and specify the coating at the outset.

Indoor environment quality

Relevant to Homestar and Green Star indoor environment quality credits:

• Volatile organic compound emissions tested to CDPH Standard Method V1.2, with the full report published rather than a summary of it
• Formaldehyde emission class E1, measured at 0.69 mg/L against the GB 18580 limit of 1.5 mg/L in our manufacturer's batch inspection of January 2026
• The coating has been tested separately by SGS. A GB 18581-2020 assessment measured VOC content at 24 g/L against a 420 g/L limit, with benzene, toluene, ethylbenzene, xylene, methanol, halogenated hydrocarbons and polycyclic aromatic hydrocarbons all not detected. An EU RoHS assessment found no lead, mercury, cadmium, hexavalent chromium, PBBs, PBDEs or restricted phthalates. Both cover the coating as supplied and not the finished floor, and neither is downloadable here, because they are our supplier's documents

Responsible sourcing

Our engineered oak flooring is manufactured by an FSC Chain of Custody certified producer and supplied as an FSC 100% certified product.

Marchand holds FSC® Promotional Licence FSC-N004872. 

Masterspec

Marchand is a Masterspec Product Partner. Our branded work sections sit inside Masterspec, with product data flowing from miproducts, so the specification text is there and current instead of something you have to write from a brochure.

Search Marchand inside Masterspec, or get in touch for the work section reference. We will review a draft section against your project before it goes out.

A note on comparison

Life cycle standards require products to be compared on the same functional unit over the same reference study period. Comparing single square metres of products with different service lives will not give a meaningful result. The argument is set out in full in our whole-of-life carbon analysis.

Project support

We can supply a written specification clause for your project, and confirm in writing exactly what our testing covers for the rooms and products involved. Tell us what sits in your specification and we will tell you what we can evidence and what we cannot. Contact us with the project name and the credits you are targeting.

Last reviewed August 2026.