56 floors & floor coverings Case Study: Pebble Beach
Bovis Homes adopted an integrated foundation system when it was contracted to build 222 two, three and four-bedroom homes at Pebble Beach, Seaton, Devon. The geology of the site, a former caravan park,
consisted of salt marsh deposits overlying Branscombe Mudstone Formation. To remediate the ground in preparation for build, a significant enabling works operation was undertaken, which involved raising site levels through importing marine-dredged sand. This involved a period of time for settlement and a programme of surcharging the site. Subsequent site investiga- tion and geotechnical analysis confirmed a suitable bearing pressure of 50kN/m2
. Based on the geotechnical profile, Bovis
specified a semi-raft foundation to meet the load bearing pressures of the ground. Ordinarily this is a more costly foundation technique than trench or beam and block; however by using a fully integrated and super insulated foundation system, Bovis was able to realise the performance benefits of a traditional semi-raft construction – with additional time and cost savings. Douglas Mobbs, engineering manager at Bovis
Homes explains: “We needed to improve on a traditional raft solution and by re-evaluating the options were able to arrive at a design which exactly addressed our requirements. It worked
Comparison of fully integrated foundation systems with traditional techniques
Beam and Block on Trench Fill or Piled Ring Beam
Low U-values achieved only by increasing the depth of insulation
Cluttered sites, with trenches – results in health and safety implications
Spoil to be removed
Can have restricted access for follow on trades
Screed required
Potential difference between design depth and actual depth required, deeper trenches increase exit costs beyond estimation
Raſt Foundation (Traditional) Fully integrated and super insulated systems
Low U-values only achieved by increasing the depth of insulation
Costly design, supply and fix of reinforcement bringing health and safety implications
Spoil to be removed
Can have restricted access for follow on trades
Screed required
Exit costs can be higher than anticipated due to varying mound sizes, requiring over and above concrete
well with the overall development programme and allowed the smooth placing of orders and efficient supply of materials. The careful planning and effective coordination between parties ensured the foundations were constructed
Low U-values are easily achieved providing future proof performance toward zero carbon housing
Clean, clutter free site, with no trenches
Minimal spoil to be removed
Quick access for following trades
No screed required
Flexible system overcomes many on-site challenges, with full design support service available with most systems
well ahead of the superstructure programme, which ultimately allowed the development to progress at an excellent pace.”
Adrian Crow is technical manager at Insulslab. Enq. 182
Introducing Timbflor and new product guide
finish. Compared to a traditional solid wood floor the Timbflor® range is 75 per cent more stable. It will resist buckling and cracking and, as such, also works well with underfloor heating.
A new Engineered Hardwood flooring collection has been added to the extensive range offered by Timbmet. Timbflor®, sourced from flooring specialists Kahrs, takes place in Timbmet’s new Flooring Guide. Timbflor® is made from Engineered Oak with a locking joint and is available from stock in a choice of six lacquered finishes plus one brushed oil
01865 862 223
www.timbmet.com
Texline is dedicated to housing
Enq. 183 Unleash your Bohemian side with Osmo
Osmo UKhas been proudly partnered with rustic European oak flooring specialists, ESCO. The collection includes nine solid oak flooring styles that are available pre-finished with Osmo’s renowned wood finishing product, Polyx®-Oil. Osmo’s ESCO collection is favoured by architects and interior designers. The combination of ESCO’s
special rustic wood style and Osmo’s smooth finish makes it one of the most popular flooring choices in the range. Available in eight colour options, including Cognac, Natural white to Stone Grey, this stylish flooring will suit any interior scheme.
Designer Contracts trains for the future
over concrete and most existing smooth floorcoverings. Texline also lowers remedial work for common post-installation issues and manufactured at 1SO 14001 certified production sites.
01926 622620
www.gerflor.co.uk respond online at
www.hbdonline.co.uk
Gerflor’s Texline flooring is a Gerflor Fibre Technology (GFT) loose-lay, luxury sheet domestic vinyl, which unites decorative trends with cutting-edge technology to provide fresh solutions for housing projects. The exclusive combination of its GFT textile backing system and compact balancing interlayer permits up to 35 sqm, adhesive-free fitting
Enq. 185
Designer Contracts has developed an extensive training programme for all employees at its offices and warehouses in the UK. The programme kicks-off for new starters welcomed into the company with a full induction plan. Extensive instruction is delivered on products the company sells together with features and benefits ensuring effective advice
and guidance is given. Tailored to the individual job role, training covers aspects appropriate to each employee to help them carry out their job effectively.
01246 854577
www.designercontracts.com Enq. 186
Enq. 184
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