- About CDI
A Code for Sustainable Homes Level 6, Zero Carbon development of 12 apartments and 9 houses all for Social rent.
This is an interesting project, one that I was involved with for over 5 years. Before we set up CDI, we did a number of things including introducing new construction systems to projects, Supply Chain Consultancy, Project Management as well as providing a variety of Construction Consultancy rolls.
One of these was as a Construction Sustainability Consultant, this included carrying out BRE, Code for Sustainable Homes assessments. These assessments were the proposed route to achieve Zero Carbon homes by 2016, unfortunately, the assessment was scrapped before this date, however many of the standards within the Code were adopted into Building Regulations to bring up the standard of new-build homes.
Sinclair Meadows went through a long design process and part of this was the separating floors within the apartments that needed to achieve a number of criteria. These included:
- An acoustic rating for both airborne and impact sound that improved upon the Building Regulations standards by a minimum 8dB for each.
- A BRE Green Guide to Specification of A+ (BRE Green Guide).
- Materials must be responsibly sourced.
- An application suitable for a Timber Framed building.
- Fire separation.
As I was already involved with the project as the Code assessor, I couldn’t put forwards one of our own systems to meet the specification, however, following the submission of a number of proposed floor build-ups based upon improved Robust Standard Detail floors achieving poor Green Guide ratings, I suggested that a Lewis Deck floor build-up be submitted to the BRE alongside the next project team generated floor proposal. The long and short of it being, the Lewis Deck floor was the only detail submitted to the BRE that achieved the A+ Green Guide rating.
The result of achieving the Green Guide rating, meeting the other requirements listed above meant that the Lewis Deck floor was specified for the apartment separating floors. Once installed and tested using acoustic pre-completion testing methods, the floors demonstrated improvements of up to 17dB over the minimum Building Regulations standards.
As an innovative and ground-breaking development and after a collective 5 years of work by the team, this project received a substantial amount of press and awards, a small selection here:
- Fitz Architects, the project Architect
- The Journal
- NAREC website – 3 sustainability awards
- Premier Construction News article
- BBC news article
- Newcastle University BFL analysis
MD at CDI
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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