Guidance regarding end laps in wall cladding.
Version 1, 14 August 2024
BEL01-End_Laps_in_Wall_Cladding.pdf
Eaves flashings are traditionally laid between the underlay and the eaves purlin. This is not always necessary, or even desirable.
Version 1, 26 March 2024
BEF01_Position_of_Eaves_Flashing_to_Underlay.pdf
The NZMRM Code of Practice recommends alternatives to a flat back kerb be used for penetrations over 600mm wide, in aggressive environments, or where maintenance access is difficult.
12 February 2026 Version 1
bnl01_skylight_back_kerb_design_for_compliance.pdf
The MRM Metal Roofing and Wall Cladding Code of Practice allows for a change in angle of valleys with a minimum height of at least 20mm.
9 April 2025 Version 1
brdv01-valley-change-of-direction.pdf
Wet Storage damage caused by incorrectly supported scaffolding is not covered by manufacturers’ warranties.
28 November 2025, Version 1
bdoc01_wet_storage_damage_by_scaffolding.pdf
NZMRM recommendations for passive ventilation design.
3 February 2026, Version 1
bvp01_passive_ventilation_recommendations_v0.1.pdf
The NZMRM Code of Practice (COP) does not have a maximum recommended length for vertical profiled metal wall cladding.
3 February 2026 Version 1
BSWC01 Maximum Length for Vertical Wall Cladding
Recommendation for designing wide Over-flashings behind penetrations.
6 October 2025, Version 1
bpd01_wide-over_flashings_behind_penetrations.pdf
Guidance on managing rust on change-of-pitch flashings.
28 October 2025, Version 1
bemf01_change_of_pitch_flashing.pdf
