CROSS SECTIONAL LINE DRAWING
MET-THERM®
MET-THERM® / Kāhu®
- About
- The Met-Therm® built-up warm roof system offers optimal thermal performance with a single layer of PIR insulation board. A key component of its design is a vapour barrier created by sealing the internal steel skin from the internal environment. This barrier is crucial for minimising the passage of internal moisture, which can compromise the system’s integrity and durability.
- Minimum Pitch
- 3° (minimum pitch will increase depending on sheet lengths - please refer to information sheet.)
- Cover Width (Nominal)
- 875 mm
- Sheet Width (Nominal)
- 950 mm
- Application
- Commercial Roofing Only (Apartments, offices, schools etc with mechanically ventilated spaces) Residential use please contact technical support.
- Availability
- Kāhu® is manufactured in Christchurch and Hamilton. Available from all Metalcraft Roofing branches.
- Material Options
- Colorsteel® Maxam®. For other materials consult Metalcraft.
Downloads
Download AllInstallation details available for download in PDF, DWG, DXF & RVT files
BPIS Building Product Information Sheet
BEO E3 Compliance Report
Redco Engineering Report Warm Roof
Branz Group Number Classification ReportFI17952-01-C1
Branz Assessment Report FC18786-01-1-C1
Commercial Roof Details
Met-Therm Batten Details
Met-Therm Batten Fixing Patterns
Metalcraft Roofing Company Profile
Colorsteel Colour Brochure
What now?
THE COLORSTEEL® RANGE
All colours are available in COLORSTEEL® ENDURA® and COLORSTEEL® MAXX®. Please note colours below are indicative and we recommend you request a steel colour sample from your nearest Metalcraft Roofing branch. The homeowner should be aware that temperatures of dark colours are higher than those of lighter colours. Darker colours will thermally expand more. Thermal expansion of metal roofs is covered in the MRM Code of Practice. The MBIE document on roof cladding advises that noise from thermal expansion is normal and should be expected. Refer to MBIE -Guide to tolerances, materials and workmanship in new residential construction 2015.
Cloud
Titania
Gull Grey
Sandstone Grey
New Denim Blue
Grey Friars
Windsor Grey
FlaxPod®
Thunder Grey
Slate
Ironsand
Ebony
Lichen
Mist Green
Permanent Green
Karaka
Desert Sand
Scoria
Pioneer Red
Lignite