- About CDI
The LEWIS® Steel Frame Concrete Floor (SCF) is a patented self-supporting floor system.
The floor system features prefabricated elements consisting of a closed steel frame of cold formed C-sections that have been cast into a reinforced concrete shell, this concrete shell also forms the ceiling slab for the floor system.
The steel frame features round openings so that pipes and installations can easily be incorporated into the floor. A LEWIS® Deck top floor is placed on the steel frame. Several removable floor zones can be incorporated into the top floor depending on the level of flexibility needed in the floor system.
The LEWIS® Steel Frame Concrete Floor makes it possible to achieve free spans up to approx. 15 meters.
In addition to being used as an intermediate floor, the floor system can also be used as an insulated ground floor.
A LEWIS® Deck floor is used as the sub-floor on top of the floor elements. This sub-floor allows for high live and concentrated loads and gives the feeling of a solid concrete floor. The LEWIS® Deck floor can be completed with a cementitious or gypsum-based screed.
For an optimal indoor climate in the building, it is possible to integrate underfloor heating into the LEWIS® Deck sub-floor. Depending on the intended purpose of the building, a completely dry floor finish can be utilised on floor elements. This floor can, for example, be made of cementitious board material. A dry top floor is also the solution when 100% flexibility of the building is required within a short operating period due to a change of function or disassembly.
Lightweight floor construction
Foundation-related costs can be reduced in new-build projects because the LEWIS® Steel Frame Concrete Floor is very light. The low weight also makes the floor system very suitable for renovating building on existing foundations.
The Lewis Concrete Floor system is new to the market and has been successfully installed on a number of projects in Europe. We are looking to launch the system in the UK with a suitable project and will then either have the modular floor units manufactured and shipped to the UK or we would partner with a pre-cast concrete company and utilise their steel casting beds to manufacture the units before sending them to site.
If you have a suitable project, get in touch to see how we can help.
Self Build & Renovations
Ask CDI a Question
What are the Lewis Deck sheet sizes?A
Q: What sheet sizes are held in stock for delivery within a few days after order? A: We stock 2500mm and 1300mm sheets. These are all 630mm wide and 16mm deep. Deliveries are made via the pallet network directly to site. The smaller sheets are aimed at small bathroom renovation projects and can be supplied in small numbers via TNT. 2.5* and 1.3m sheets allow for the 100mm overlap to occur over a joist, with joist centres being either 300mm, 400mm, 600mm, 800mm*, 1200mm and 2400mm*. (*2.5m sheet only) For larger projects we are able to produce bespoke sheet sizes if required, please get in contact to discuss other options for sheet sizes.Q
Lacomet – How come it has no scrap value?A
Lacomet – How come it has no scrap value? Many of the projects that we get involved in starts with a phone call or email to us from someone researching replacing stolen leadwork. Many of these are old buildings, such as schools or churches, where this isn’t the first time that the lead has been stolen and they call us fed up with having to replace it again full in the knowledge that they will more than likely go through the same problem once more in the near future if they continue to use lead. One of the big benefits that Lacomet FL brings to a project is the fact that it has no scrap value and therefore the chances of it being stolen are massively reduced. Due to the 2 thin aluminium layers, and its five layer total construction, it is of no value to thieves. Lacomet can be recycled but the polyester based coating would need to be de-laminated first and the amount of recovered aluminum is then very low, in fact it would be easier and more profitable to collect empty drinks cans than to mess about stripping Lacomet down. We can also supply stickers that can be placed in strategic locations informing people that what is now on the roof is not lead and that it has no scrap value.
Why don't my Lewis sheets interlock like they do in the video?A
Q: Why don't my sheets interlock like they do in the video? A: The sheets have two sides (one printed, one plain), the dovetails on either side are different widths, it is then necessary to alternate the sheets print up and then print down.Q
Is this a question?A
If it is, this is an answer.
We Have New Lewis Deck Installation Videos
13th October 2020
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…View All
Lewis Steel Concrete Floor System
07th October 2020
The LEWIS® Steel Frame Concrete Floor (SCF) is a patented self-supporting floor system. The floor system features prefabricated elements consisting of a closed steel frame of cold formed C-sections that have been cast into a reinforced concrete shell, this concrete…View All
Hi Everyone, Just A Quick Note on The Lockdown
15th April 2020
Hi Everyone! Just a quick note to let everyone know we are still doing what we can through these tough, and weird, times. We are working from the safety of our homes so we are able to keep giving the…View All
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