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RM925 is a medium height commercial trapezoidal roofing profile, it has a rib height of 35mm and seven ribs per sheet, offering an effective cover of 925mm it can be used on pitch roofs down to 3°. RM925 can also be reverse run for wall cladding, and can be manufactured in.55 gauge and .40 gauge steel material and .70 gauge aluminium. RM925 is a cost effective alternative to lower ribbed roofing offering wide coverage (925mm) allowing fixers to cover greater areas at a faster pace.

 RM925 is available in clear sheeting in a matching profile in a variety of specifications.

Base Materials

RM925 is available in Zinc coated and pre-painted steel in .40g and .55g (base metal thickness) and plain and pre-painted Aluminium .70g 


RoofWalls
InternalEndInternalEnd
Gauge*Light*Heavy*Light
*Heavy
Steel.40BMT2800mm2500mm1900mm1700mm3200mm2200mm
Steel.55BMT3800mm34000mm3000mm2700mm3800mm3000mm
Aluminium H36.70BMT


* Refers to Roof Traffic. NB: Heavy roof-traffic purlin spacings provide a superior roof.

Fasteners

Steeltite 14g x 65mm and Timbertite 14g x 75mm, Class 4 fixings compatible with the material being fitted. 

Provision should be made for thermal expansion.

Foot Traffic

Foot traffic up and down the roof should be across the rib of the profile. Foot traffic across the roof should be on the purlins.

Durability

All materials should be checked for their compatibility and their warranties as to the suitability in the Environment to which they will be exposed. Warranties must comply with the maintenance recommendations as set down by the material.

Custom cut to length subject to available transport.

Design Details

For design details and best practice applications, please refer to NZ Metal Roofing Manufacturers' Code of Practice

Materials

Zinc AlloySteel.40BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Zinc AlloySteel.55BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Pre-paintedSteel.40BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Pre-paintedSteel.55BMTAZ150 (150GM/M2)G550 Mpa Yield Stress
Pre-painted
Aluminium.70BMT5052305 Mpa Yield Stress

Paint Finishes

Zinacore8 - For general exterior roofing and cladding applications. NOT suitable for use in severe or very severe marine Environments

ZinacoreX - For general exterior roofing and cladding applications. NOT suitable for use in very severe marine Environments

AlumiGard - For general exterior roofing and cladding applications. Suitable for use in up to very severe marine Environments

AlumiGard X - For general exterior roofing and cladding applications. Suitable for use in up to very severe marine Environments

Installers

Only qualified approved roof installers should be used on your contract. All installations should be to the standards as set out in the NZ Metal Roofing Manufacturers' Code of Practice.