Structural Roof Deck Case Study : Morrisons Openshaw

January 6, 2011

Morrisons Openshaw Case Study
Following years of planning, South Yorkshire-based Dransfield Properties has embarked on what represents East Manchester’s biggest private investment for some time, in the form of the new Lime Square retail development, off Ashton Old Road in Higher Openshaw.

Located on an 11.9 acre site, the £40 million development creates a much needed new commercial heart in the area it serves. It is a powerful symbol of the renaissance that is taking place in Openshaw, providing a family-focused neighbourhood that benefits residents and encourages relocation and investment.

The first phase of the project, a new 80,000 sq.ft. Morrisons store and 670 car parking spaces, was opened on schedule in the autumn of 2010. It is the first new opening in the country with an in-store Peacocks outlet – the fashion retailer has taken 6,000 sq ft following a deal announced between the two companies earlier in 2010.

D60 Roof Deck - Morrisons OpenshawThe store features Morrison’s very well established standard built-up roof specification featuring 9,000m2 of the D60 structural roof decking system, installed by QM Roofing Ltd of Dewsbury, Yorkshire.

D60 Structural Metal Roof Decking is a popular choice amongst both structural engineers and architects, particularly in supporting single-ply roofing applications. Capable of spans up to 4500mm, D60 features an 800mm cover width and a 200mm pitch that provides a very strong deck and offers excellent insulation support. An open width of just 110mm eliminates the risk of insulation dip or breakage.

Single Ply Roof on D60D60′s lightweight construction also minimises the load on the building structure. Brian Baldwin, a director of QM Roofing, outlined the roof construction at Morrisons, Lime Square: “We have been installing roofs on Morrisons’ supermarkets for over 20 years. We work to the company’s standard built-up roof specification that is tried and tested and has essentially remained unaltered for over a quarter of a century.

“We find D60 to be very easy to install and have never had any problems with deliveries. These key benefits played a vital role in the completion of the entire roof in ten weeks, making an important contribution to the on-schedule opening of the store.”

Sure enough, the store was officially opened precisely on time by Sir Ken Morrison and Sir Ian Gibson, of Morrisons, watched by members of the Morrisons board and an eager crowd of waiting shoppers.

Dead Blow Sculpture at Morrisons OpenshawAfter the store opening Sir Ian Gibson, who was born and spent his early school years in Openshaw, was invited to officially dedicate a new steam hammer sculpture commissioned for the development.

Called Dead Blow the £175,000 piece of public art stands 29 ft. high and was created by the award winning sculptor Robert Erskine to reflect the industrial history of the area – it is designed to be part of the main pedestrian walkway on to the centre.

View the full case study and gallery here


Acoustic absorption is not so hard

November 17, 2010

rockwool acoustic infillThere seemed to be a stretch of time from the 1960’s to the 80’s when   acoustics were somewhat forgotten in the design of some buildings. We’ve all been in the motel rooms, B & Bs, flats and hotels where you hear far too much of your neighbours’ activities especially at 1am when you’ve got the important meeting next day.

The same was true of large echoey gyms, school halls, noisy factories that are far too noisy inside thanks to the prevalence of hard surfaces and total lack of absorptive surfaces. Fortunately the solution in this case is a relatively easy one, and has been widely and effectively applied in the more recent past.

Providing the construction uses metal decking, the profiles can be specified with perforated webs, which are installed with rock fibre insulation in the flutes behind the perforations. This provides between 10% to 30% open absorptive area, which is effective at damping reverberation noise. If metal cladding is also used, the same solution can be applied to the walls.

Occasionally there is a small reduction in the structural capacity of the deck of course but this can easily be designed in. The roof construction also requires more care in the specification and placement of insulation and vapour control layer, to ensure that no interstitial condensation takes place. These are relatively minor issues both in terms of cost and complexity.

Panels and Profiles in co-operation with Rockwool offer two fully tested acoustic deck systems in their Roof Deck Literature using D60 deck, which can simply be used by the building designer to meet acoustic requirements where their is a specific required acoustic aspect to a project.


Tata Steel RoofDek D60 Structural Roof Deck

March 10, 2010

Corus D60 Roof Deck

Tata Steel RoofDek  D60 Roof Decking is a popular choice amongst both structural engineers and architects, particularly in supporting single-ply roofing applications.
Conceived specifically as a structural product, there are a number of other benefits to using Tata Steel RoofDek D60 in comparison to other decks available in the market:

  • Tata Steel RoofDek D60 with a gauge of 0.7 mm can span up to 4500mm
  • D60’s 200mm pitch provides a very strong deck, and offers excellent insulation support
  • With an open width of just 110mm the risk of insulation dip or breakage is eliminated
  • Available in plain, perforated, 0.7mm Colorcoat® (pre-painted) steel, aluminium and galvanized steel up to 1.2mm
  • Tested acoustic systems available

In addition to these product benefits, there is also a range of technical support on hand, including diaphragm analysis and design guidance.

For more information, download the Structural Roof Decking Brochure here.

Load Span Tables are also available for download here.

Contact Us

Tata Steel
Shotton
Deeside
Flintshire
CH5 2NH

Tel: 0845 30 88 330
Fax: 0845 30 11 013

http://www.tatasteelconstruction.com/roofdek


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