Conversion of a mansion house to high quality apartments
Kingswood Warren Mansion House conversion

The conversion of the Listed Mansion House on the Kingswood Manor estate in Surrey required very high performing acoustic floors for these very high quality apartments, the floors also needed to cope with the use of large format tiles, including marble without the danger of any deflection and cracking.  This was achieved using the Lewis Deck system for all of the floors, but included the wet-room bath rooms and the incorporation of under floor heating throughout.

Marble floors over Lewis Deck and screed with underfloor heating
Marble floors over Lewis Deck and screed with underfloor heating

The Lewis Deck with resilient strips underneath was installed over the existing timber floor to provide very high levels of both airborne and impact sound protection to the apartments below, this includes the low frequency noise associated with footfall, etc and can be particularly troublesome with light weight floor constructions and hard floor coverings.

Underfloor heating pipes were secured to the top of the Lewis Deck with clip-rails and P-clips before the installation of the free-flowing liquid screed.

The mansion house won the 2014 Best Change of Use of an Existing Building or Conversion Award at the LABC Awards.

www.hubarchitects.co.uk/Blog/kingswood-wins-award/

Large format marble tiles in a wet-room bathroom with underfloor heating upstairs on Lewis Deck
Large format marble tiles in a wet-room bathroom with underfloor heating upstairs on Lewis Deck

LEWIS DECK TO CREATE WET ROOM FLOORS

Lewis Dovetailed Sheeting is ideal for creating wet-room floors in either existing or new build construction. The sheet can be used instead of timber boards to span over the joists to produce a waterproof, lightweight reinforced concrete floor that allows for tiles to be laid with no fear of cracking or moving. Alternatively it can be laid over the existing floorboards.

This is an accepted wet-room floor solution used extensively across Europe, especially in a number of countries where concrete bathroom floors are part of the building codes.
Wet-room floors using Lewis Deck can be as little as 36mm deep.
Each standard sheet is 2500mm x 630mm x 16mm and weighs 9kg, alternatively we stock a 1300mm x 630mm x 16mm sized sheet that can be supplied in small numbers using TNT for smaller bathrooms.

FAQs

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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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Kingswood Warren Mansion House conversion - CDI