KAFLEX and ROFLEX Grommets have been appraised as pipe and cable penetration seals for use where the penetration is through the wall underlay on framed walls within the following scope:
within the limitations of NZBC Acceptable Solution E2/AS1, Paragraph1.1 with regards to building height and floorplan area
with flexible wall underlays situated in NZS3604 Wind Zones up to, and including, Very High; or
with flexible wall underlays used over rigid wall underlays in accordance with E2/AS1,Paragraph 184.108.40.206, situated in NZS3604 Wind Zones up to, and including, Extra High; or,
with proprietary plywood or fibre cement based rigid wall underlays (rigid air barriers).
The flexible and rigid wall underlays must be covered by a valid BRANZ Appraisal.
KAFLEX and ROFLEX Grommets have also been appraised as pipe and cable grommets for use where the penetration is through the roof underlay on framed pitched roofs within the following scope:
within the limitations of NZBC Acceptable Solution E2/AS1, Paragraph1.1 with regards to building height and floor plan area; and,
with flexible roof underlays fixed over framing or rigid roof sarking; and,
situated in NZS3604 Wind Zones up to, and including, Extra High
The flexible roof underlays must be covered by a valid BRANZ Appraisal.
— KAFLEX and ROFLEX Grommets have also been appraised for use on buildings subject to specific weathertightness design. Building designers are responsible for the building design and for the incorporation of KAFLEX and ROFLEX Grommets into their design in accordance with the declared properties and the instructions of Pro Clima(NZ)Ltd
Limitations on Use
Separation must be provided from chimney or exhaust flues where surface temperature will exceed 80 degrees C.
Statement of Building Code Compliance
3.1 — In the opinion of BRANZ, KAFLEX and ROFLEX Grommets, if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:
Clause B2 DURABILITY: Performance B2.3.1 (b), 15 years and B2.3.2. KAFLEX and ROFLEX Grommets meet these requirements. See Paragraphs 8.1 and 8.2.
Clause E2 EXTERNAL MOISTURE: Performance E2.3.2. When used as part of the wall or roof cladding system, KAFLEX and ROFLEX Grommets will contribute to meeting this requirement. See Paragraphs 7.1 - 7.7 and 11.1 - 11.2.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. KAFLEX and ROFLEX Grommets meet this requirement and will not present a health hazard to people.
Since 2016 these grommets have been in daily use by the largest plumbing and electrical group in New Zealand.