|Sanisburys Greenwich the first |
BREEAM Excellent Supermarket
|Borough covered market|
is flooded with natural light
|Natural lighting at|
the Burlington Arcade
|B&Q New Malden|
North light roof
Customers love natually lit retail environments; think of covered markets and arcades and you conjure up a picture of fresh abundant produce and upmarket boutique shops with beautifully lit produce. So why is it that black box stores with little or no natural light has become the norm? The argument made is that natural light is hard to control and can wash out display lighting. Amazingly, galleries manage to light priceless works of art this way, we just need to try a little harder. One of the other challenges that natural lighting poses is that the windows in the roof need to face north if overheating is to be avoided. Sites do not always make it easy to orientate the roof in the correct direction and this has led to the increasing use of lightpipes as they do not require specific orientation. This is in my opinion an over reaction and we need to develop innovative solutions to overcome what are realitively easy problems to solve.
Once we have created the optimum internal environment for our customers it is important that energy losses through the envelope are kept to an absolute minimum. It really suprises me that buildings are still being built to Building Regulations minimum standards. Insulation is relatively cheap and is much easier to install during construction than at some point during the life of the building. I can see no reason why you would not install the maximum amount of insulation to futureproof the finished building, aiming to achieve a u value of between 0.1 to 0.15 W/m2K and carefully detail the junctions to ensure infiltration rates are less than 0.15 m3/( m2.hr) @50Pa.
|Simple lightweight timber frame|
Operation V Embodied Energy
As buildings are designed to be more energy efficient the balance between operational energy and embodied energy shifts, placing more emphasis on the energy that is embodied in the materials used to construct the buildings. This has led to a move away from steel and concrete to wood alternatives. While this is to be encouraged, because timber locks in carbon, we do not currently grow enough of the stuff to satisfy demand. A number of projects are making big sustainability claims based on the fact that they use a lot of wood and therefore sequester large amounts of carbon. If you are building in Scandinavia where wood is plentiful this is not such an issue, however in Britian we do not produce much and it will be difficult to significantly increase production. I believe that we should be designing hi tech timber structures that use our precious locally grown timber as efficiently as possible. Through careful design and specification this approach will encourage investment in UK forestery and help to develop the UK timber industry.
Made in Britian
I believe that the continuing concern regarding the state of the UK economy, coupled with growing emphasis on the carbon footprint of the materials, will see a drive towards the use of more locally produced building materials. This is likely to result in buildings specifically designed to be “Made in Britian” using local materials and components to reduce their total embodied carbon, create jobs and help to grow the UK’s building products industries.
|Neptune Point Harrow|
retail led mixed use development
Retail led Mixed Use Development
|Waitrose cookery school may |
evolve into an in store concept