Insworke mill conversion Lewis Deck case study
Insworke Mill Quay

Insworke Tidal Mill was originally built around the 1590’s and survived as a working Mill until just before the First World War.

It then had a chequered life as various storage and manufacturing uses until it fell into total disrepair. It went under a major refurbishment and rebuild programme in 2011 to find a new life as a commercial property to the ground floor and residential to the upper floor.

Innesworke Mill Lewis Deck

The client turned to a Lewis Deck / screed solution when looking for solve the problem of acoustic and fire separating floors that would allow the new timber beams to be left exposed from beneath to replicate the original beams. On the ground floor Lewis was used to in a similar way to create a warm floor above the voided cellar areas. Lewis Deck on resilient strips was placed on to the new beams with a flanking strip around the perimeter. Underfloor heating was then fixed to the Lewis Deck before the screed was laid giving an overall depth of deck, underfloor heating pipes and screed of just 52mm.

The system is often used in this way in listed buildings such as this to preserve the existing structure and upgrade the performance of the floor. As the floor is laid as a floating structure, that is, without connecting it to the existing timber, it doesn’t damage it and if required, could be removed in the future to bring the floor back to its original state.

Various timber floor structures at Insworke Mill including exposed timber ceilings
Various timber floor structures at Insworke Mill including exposed timber ceilings
Exposed timber ceilings at Insworke Mill Quay
Exposed timber ceilings at Insworke Mill Quay

The renovated Insworke Mill will provide commercial space to the ground floor with the first floor used as residential space for the Newton family.

More recently it was then converted into a Bed and Breakfast and now it is simply a residential property demonstrating the versatility and future proofing of using a floor that allows for these changes of use.  If the property comes up for sale in the future it would be simple to put it back to work as any of these uses.

A fabulous project to have been involved with in a beautiful location.

Learn more about the Lewis Deck System here.

Lean more about the Lewis Deck System and underfloor heating on upper floors here.

Insworke Mill barn conversion reflected in the water
Barn conversion reflected on the water in Cornwall
Wetroom Floor at Insworke Mill Quay in Cornwall
Wetroom Floor at Insworke Mill Quay in Cornwall
Engineered Timber Flooring over underfloor heating
Engineered Timber Flooring over underfloor heating

FAQs22

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  • Q

    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.

  • Q

    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

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    A

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Insworke mill conversion Lewis Deck case study