Double Glazing Manufacturers

IGUMA (Insulated Glass Unit Manufacturers Association) is a group of Glass Processors who have agreed to an (independently verified) testing regime. Your IGUMA Member supplier can provide you with a copy of the current compliance certificate for the product you are purchasing.

NZS4223.2:2016 requires IGU to be tested and demonstrate compliance. IGUMA members who comply with IGUMA-BS EN1279 testing also comply with the requirements of Section 5 of NZS 4223.2:2016. Paragraph 5.1.3 of the standard refers to the “Acceptable period between tests” and requires compliance testing to be conducted at least every two years. The ‘Audit Date’ column in the table below refers to the last completed test.

Region	Member	Address	Audit Date
Auckland	FMI Ltd	100 Carbine Rd, Mt. Wellington	02.04.24
	Glass Team Ltd	11 Volger Dr, Wiri	08.07.21
		80 Langley Rd, Wiri	08.07.21
	Metro Performance Glass	5 Lady Fisher Pl, Highbrook	17.04.23
	NZ Glass & Glazing	1 David McCathie Pl, Silverdale	24.02.21
	Viridian Glass	15 Waiouru Rd, Highbrook	–
Waikato	Architectural Glass Products	137 Swayne Rd, RD1, Cambridge	12.10.23
	CM Glass Ltd	5 Norris Ave, Te Rapa, Hamilton	04.07.23
	Glasslines NZ Ltd	296 Peake Rd, Cambridge	11.05.22
Wellington	Metro Performance Glass	18 Jamaica Dr, Grenada North	05.05.22
Nelson	Viridian Glass	9 Tokomaru Pl, Stoke	–
Christchurch	FMI Ltd	53 Izone Dr, Rolleston	08.11.23
	Stake Glass	3 Distribution Ln, Sockburn	09.08.22
	Metro Performance Glass	700 Halswell Junction Rd, Hornby	18.07.23
	Viridian Glass	25 Pilkington Way, Wigram	–

Identification of Insulating Glass Units

The New Zealand Building Code Clause B2 (amendment 9, January 2017) modifies NZS 4223 Part 2 as follows:

5.3 Marking

Insulating glass units shall be permanently and clearly marked. As a minimum, marking shall include the following:

a) The name or registered trademark of the manufacturer or supplier;

b) The date of manufacture (use the year as the minimum), and

c) Complies with NZS 4223.2:2016.

Marking shall be visible after the IGU has been installed, and must be legible and durable for the life of the unit.

NOTE:

Etching and permanent laser marking are acceptable means for marking insulating glass units. Externally affixed adhesive labels are not acceptable.
Additional Marking may be used by the manufacturer.