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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 ancillary items then being supplied to site in May of the same year, installation then followed, with project completion due for mid 2023.
“Thanks again and also for the advice early doors – your product went like a dream and the upper floor construction was spot on” Paul M.
From the photos, the typical installation can be seen. The Lewis Deck is installed on top of the timber and metal web joists (often known as “Posi” or “Easy” Joists). The Deck then acts as the safe working platform for as long as is necessary and will cope with what the Great British weather has to throw at it. The underfloor heating pipes are then installed on top of the deck using clip-rail and P-clips and secured down using short self-drilling screws. These pipes are installed in zones in exactly the same way as the ground floor with the walls being marked out on the deck with paint prior to the installation, in deed, they are the same pipes as used down stairs.
As these pipes will be in the same screed as used on the ground floor they are laid with the same centres and the performance will be the same.
Once both floors are ready for screed, the screeder can pay one visit and pump both the upstairs and downstairs. Once the screed has cured, the internal non-loadbearing walls can be installed on top of the screed.
This is a very simple and straight forward process and if the self-builder is looking to take on any part of the build themselves, the Lewis Deck installation is definitely something that they will be able to do!
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.
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.
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Lewis Deck Brochure Content
01st January 1970
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