Ikea secures roof with SFS intec

Edited by the Buildingtalk editorial team Jan 20, 2006

Major new distribution centre for IKEA has been built outside Doncaster using innovative membrane roofing systems by using the SFT (Sarnafast Tube) system from SFS intec.

A major new distribution centre for IKEA stores in the North and East of England has been built outside Doncaster using innovative membrane roofing systems.

By using the SFT (Sarnafast Tube) system from SFS intec to fasten the heavily insulated roof, installers Roofdec achieved improved windlift resistance and better thermal efficiency to meet the latest Part L requirements, while making significant installation cost savings.

At IKEA in Doncaster, 70,000 sq metres of Sarnafil T membrane was fastened over 140mm of Rockwool Duoroc mineral insulation, to steel decking over purlins.

Also included were 150 roof lights and numerous smoke vent penetrations.

The new SFT system developed by SFS intec exclusively for Sarnafil .

ensures a completely effective thermal break for insulated membrane roofs while also delivering 30% greater resistance to wind uplift than the current system.

This enables the construction to meet the enhanced Part L requirements with fewer fasteners, and despite the number of roof penetrations.

The SFT comprises the SBF-SQ3 Sarna screw preassembled to a nylon telescope tube either in 50mm barbed head form for inseam fastening, or 20mm head form for Sarnabar or insulation attachment.

The new system can currently accommodate build ups of up to 450mm, and with the special TI-Z10 screw can be used into concrete decks as well as steel and timber.

The low thermal conductivity of the nylon tube of the SFT ensures the compliance of the system within the current Part L and will ensure that future revisions can be accommodated.

Installation of the SFT system requires dedicated tools, the TP10,19 and 30, purpose designed by SFS intec in collaboration with Sarnafil .

to prevent overdriving and possible heat damage to the telescope caused by standard telescope tooling.

The SFT fasteners are typical of the systems developed by SFS in collaboration with roofing system manufacturers and contractors to ensure the best possible performance of their products.