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Flatdeck is a versatile, lightweight composite steel flooring system that makes full use of the combined structural properties of both steel and concrete. The result is a strong, stable and durable residential/commercial floor — a floor which provides thermal storage, soundproofing and fire resistance.
Flatdeck is a 57mm deep tray flooring profile used where thinner slabs are required and/or where underside appearance is important. Designed in accordance with the procedures in AS/NZ 4600, AS 3600 and BS 5950 based on detailed analysis and physical testing.
Flatdeck is roll-formed from high strength zinc-coated steel coil to AS1397, available in 0.75mm and 0.95mm thicknesses. Flatdeck is supplied with a range of compatible components including Edge Form.
The use of galvanised steel decking sheet should be avoided:
Chemical admixtures may only be used with Dimond Structural Flooring Systems if they are compatible with galvanised steel.
Past history of use of Dimond Structural Flooring Systems indicate that provided the system design, product use and maintenance is in line with the guidelines of the Flooring Systems Design Manual, Dimond Structural Flooring Systems can reasonably be expected to meet the performance criteria in Clause B1 Structure and B2 Durability of the New Zealand Building Code for a period of not less than 50 years, provided they are kept free from moisture.
Dimond Structural Flooring Systems designed using the Fire Design Sections 3.3.4, 3.4.6 and 3.5.6 of the manual and will meet the performance criteria in Clauses C3 and C4 of the New Zealand Building Code (section 3.3.4 is based on testing to EN 1365-2 and sections 3.4.6 and 3.5.6 are based on HERA reports R4-82 and R4-131).
Using the Flooring Acoustic Performance sections 3.3.5, 3.4.7 and 3.5.7, Dimond Structural Flooring Systems can be designed using the manual for guidance to achieve Sound Transmission Class (STC) and Impact Insulation Class (IIC) of 55 meet the requirements of the current New Zealand Building Code Clause G6, airborne and impact sound.
Where products used in Dimond Structural Flooring Systems are manufactured by other suppliers, compliance to the New Zealand Building Code should be checked with that product’s manufacturer.
Dimond is New Zealand's largest manufacturer of steel roofing, cladding, structural and rainwater goods.
As part of the Fletcher Steel family, Dimond Structural offer technical expertise backed by a history of supplying purlins and composite steel decking in to a range of major New Zealand projects.Product Enquiries
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