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Lewis Deck and Underfloor Heating
Introduction The Lewis Deck system provides solutions for acoustics, fire, high loads, underfloor heating and wet rooms, it can achieve all of these simultaneously with relatively simple build ups. All of these aspects will be touched on, but this paper sets out to discuss the case for concrete/screed floors with underfloor heating “upstairs.” This is …
Read MoreAnother mention in the house building press
The Lewis Deck has been picked up by a number of magazines over the years, here is the latest mention in a discussion about underfloor in the Real Homes Magazine: Underfloor heating: your questions answered Underfloor heating: your questions answered Thinking of installing underfloor heating? Real Homes has posed your most-asked UFH questions to industry …
Read MoreA new chapter for CDI-ICM
A very warm welcome to the beginning of a new chapter for CDI-ICM. Today we take a very big leap into the 21st century and post our first blog to go alongside the creation of our new website (www.cdi-icm.co.uk). The plan is to post updates at regular intervals keeping you updated about what we are …
Read MoreAnother Day another Lewis load.
It might only be the middle of January but already we are seeing a number of projects that we were working on during the back end of 2016 starting to come across the line. Today we have 3 full packs of 60 sheets packed up and ready to head south to a renovation project in …
Read MoreCase Studies
Self Build & Renovations
FAQs22
Ask CDI a Question
Ask CDI a Question-
Q
What are the Lewis Deck sheet sizes?
AQ: 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.
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Q
Why don't my Lewis sheets interlock like they do in the video?
AQ: 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.
QIs this a question?
AIf it is, this is an answer.
Latest Blog
CDI 2026
2026 Exhibition Dates
20th January 2026
2026 might only be a couple of weeks old but we are already turning our attention to the first couple of exhibitions that we have organised for this year. This year we are hoping to be at more events than…
View AllIs Underfloor Heating Compatible With Carpet?
11th October 2024
At Every Exhibition We Get Asked Can You Have Underfloor Heating With Carpet? Hopefully here we explain why the answer to that is YES. With carpet providing a soft, luxurious feel to your home many people ask whether underfloor heating and carpet can go…
View AllCow Close Barn with Heat Pump and Underfloor Heating
26th May 2023
Paul M contacted us in early 2022 to discuss the use of the Lewis Deck system following a recommendation by his Ground Source Heat Pump system installer. We worked through the drawings and provided a quote, the Lewis Deck and…
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