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| PROJECT NAME: |
City Gate House |
| VALUE: |
£150,000 |
| LOCATION: |
Gants Hill, Ilford, Essex |
| SYSTEM: |
Insulated Render (rail system) |
| CLIENT: |
Harley Curtain Wall Ltd |
Lawtech Ltd was instructed to carry out the insulated render to City gate House. The 19 story office block had been acquired by Fairview Homes to convert into apartments. The contract was to comply with NHBC guidelines and therefore a render system with a drain cavity needed to be designed. Working with our client Harley Curtain Walling and our material supplier Alumasc, a swissrail specification was proposed. This involves mechanically fixing a rail system to a 12mm cement particle board (fixed to a lightweight steel frame e.g. Metsec or similar) thus forming a drain cavity. A frame rail is fixed around all windows and window heads are protected by a deflector rail so that if, in the unlikely event, any water does get behind the system it is drained off beyond the windows. An intumescent strip was also installed at each floor level and vertically between each property.
The deflector rail caused a particular problem at City Gate House due to the long length of window (20m) and the low gradient of fall available. However, the site team overcame the problem by creating a ‘V’ channel and draining half the widows into the back of the rain screen cladding installed by our client Harley Curtain Walling. In addition a lot of skill and effort was employed in achieving the correct rail configuration where new balconies were fitted into the structure.
Once all the rails are in place 80mm thick mineral fibre boards were mechanically fixed to the rails and the render finishes applied. A full description of rail systems can found elsewhere on the wed site (coming soon).
Lawtech Ltd is a leading subcontractor for many of the façade material suppliers. We are able to provide assistance in the design and installation of various cladding systems including lightweight steel frame infill structures, external wall insulation (EWI), anti-crack render systems, NHBC insulated render systems, concrete repairs and specialist coatings. Our modern philosophy towards contracting is based on the principals of partnering with our clients and an open attitude towards achieving a contract completed on time, in budget and of exceptional quality. Lawtech Ltd is involved in both the new build and refurbishment market and has a proven track record and enjoys working closely with key clients including local authorities, housing associations, main contractors and the MOD.
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