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CDI Innovative Construction Materials Ltd

Specialists in structural and acoustic floors

+44 (0)1388 728833 www.cdi-icm.co.uk

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Showing 1-9 of 9

Adding Floors to an Existing Hospital, London

Lewis Deck was chosen, on this particular project in London, for a number of the key benefits the system brings. These being the strength of the system with only needing a thin screed on top, the acoustic qualities & vibration control properties and the speed an ease of installation. This project even requested much longer sheets than standard in an effort to speed up the installation process even more. In fact you can see from the main photo above that some of the sheets were extremely long. The longest being just over 6.5m.

Conversion of a Grade II listed building into apartments

The project involved the conversion of the 1st floor of the Grade II listed Princes Building in Newcastle’s Quay side area into 10 apartments. The building, which was designed by William Parnel, who was responsible for some of the best architecture in the City, was built back in 1863 and as such posed some interesting problems when it came to bringing the building up to current standards. The introduction of the Lewis Dovetailed Metal Deck and screed system on top of the existing joists provided the necessary performance for airborne and impact sound and fire separation.

Graven Hill self-build ICF houses with concrete upper floors

Built on a self-build development site at Graven Hill in Bicester, where every property is different, this house utilises a number of different design styles and is constructed from an ICF system called Durisol Blocks. The first floor is constructed using the Lewis Deck and includes sound separation, underfloor heating and wet-rooms. It is common for the 1st floor to see a liquid screed installed over the deck, however for this project the client just ordered a little additional of the concrete being poured down the walls to complete the floors.

Lewis Deck in an ICF Build.

The building was constructed using ICF blocks that are to have a rendered finish. Internally the ground floor is a concrete slab and the upper floor has timber posi-joists with the Lewis Deck and resilient strips laid above. 16mm underfloor heating pipes are then clipped into our new clip rail system with a free flowing screed then poured on top, 50mm thick. This then gives 20mm cover to the heating pipes, maximising the efficiency of the whole system.

New house, Perth, Scotland

This new-build house was in a remote location and off-grid for mains gas, the house was to be heated by a heat pump and so efficiency was a major consideration for the project. The Lewis Deck system was chosen for the 1st floor of the building to provide the same efficiencies for the underfloor heating as the concrete ground floor as well as providing a high level of acoustic separation for this quality timber frame project. The build-up included the Lewis flanking and resilient strips, Lewis Deck, Anhydrite liquid screed and underfloor heating pipes.

New Lewis Deck Installation Videos

We keep on being asked about how to lay our Lewis Deck system and the previous installation video wasn’t ideal when it came to showing how simple this was. So, in conjunction with the manufacturer of the deck we’ve had a series of new videos produced.

Redevelopment of Insworke Mill, Lewis Decking used for acoustics and under floor heating

Insworke Mill was originally built in 1590 and survived as a working Mill until the First World War. After falling into disrepair it’s now undergoing a major refurbishment to convert it to its new life as commercial properties to the ground floor with a luxury residential dwelling above. To the first floor a Lewis® Deck/screed solution was used to provide acoustic separating floors with timber beams left exposed, replicating the original beams. On the ground floor; Lewis® was used as part of a warm floor solution above the cellar areas. U/F heating was incorporated in all floors.

Sinclair Meadows – Zero Carbon Code 6 Housing

Providing 21 affordable homes in the first ‘carbon negative’ housing community of its kind in the UK. The initial concept began in 2009 with the aim of creating carbon negative housing. The project is ground breaking with a plan to lock away as much carbon as possible whilst generating excess energy from systems installed. Reppel products used: Lewis Deck light weight steel/ screed composite floor system providing acoustic floors improving Building Regulations Part E standards by at least 8dB. Lacomet FL flashing was also used - as alternative to lead, solving the problem of tannins leaching from timber shingles roofs.

Timber Framed Self Build House, St. Albans

A timber frame structure requires the floor to provide racking to prevent the building from twisting. Meaning the floor needs to be secured to the joists below so the floor can stop twisting. There are 2 ways of installing Lewis Deck in timber frame structures. Firstly is to fix the Lewis Deck down and lose acoustic performance or the second way is to fix a timber deck on top of the timber joists. Lewis is then laid loose on top of the timber with the resilient acoustic strips in between keeping all of the benefits Lewis Deck but slightly thicker.

Showing 1-9 of 9