34101_34101_image1.jpg

Waterproofing products specified for residential development

  • 20 May 2015

  • Share

The development consists of 12 properties, seven of which are built partly into the hillside, with the rear gardens being at first floor level.

It was important to ensure these properties were protected against water ingress and remain habitable, therefore the retaining wall and floor slab were constructed using a dual system from Sika as a waterproofing solution.

Mellor Brook consists of 12 properties, seven of which are built partly into the hillside.

SikaProof A12

The dual system consists of SikaProof A12, together with the Sika Watertight Concrete system. This was to ensure complete watertightness of the ground floor, adhering to the principles laid out for Grade 3 of BS 8102:2009.

The membrane surface of SikaProof A12 is embossed with a grid pattern containing an integrated sealant. It is topped by a thin layer of fleece which forms a mechanical bond to the concrete as it dries.

The grid pattern offers additional protection, as the sealant bonds tightly with the surface of the concrete, forming mini watertight compartments.

If the membrane surface is damaged, moisture or pressured water cannot spread between the membrane and the concrete structure, as it is contained within the grid square.

Sika Watertight Concrete

Hope Construction Materials supplied Sika Watertight Concrete for the project. It is developed to offer protection for below ground and basement construction by preventing water from migrating through the concrete.

Sika admixtures work within the concrete to reduce the water/cement ratio. This increases the density of the mix and minimises the size, volume and continuity of the concrete’s pores.

It also helps with the placing of the concrete, ensuring a completely watertight finish.

Sika Tricosal Metal Waterbar

Construction joints on the Mellor Brook development were sealed with Sika Tricosal Metal Waterbar. This consists of a galvanised metal sheet with a layer of composite film on one side that bonds permanently to the concrete, acting as a physical barrier to the passage of water through the joints.

The Sikadur Combiflex Jointing System was used to seal the movement joints, consisting of a Sika Hypalon Strip and Sikadur -31 epoxy resin adhesive that establishes a strong bond to the substrate.

Sika Limited
Watchmead
Welwyn Garden City
Hertfordshire
AL7 1BQ
Telephone: +44 (0) 1707 394444

Visit Sika's website

Leave a Reply

More articles

CMS Window Systems

CMS backs employee fairness initiative with Scottish Business Pledge

CMS Window Systems has partnered with the Fairness Commissioner in North Lanarkshire at a special event to encourage businesses to sign up to the Scottish Business Pledge.

Posted in Aluminium Products, Articles, Awards, Building Industry Events, Building Industry News, Building Products & Structures, Building Regulations & Accreditations, Posts, Windows

  • Share
Contour Heating

What Colours Are Available For LST Radiators? - A Contour article

You are empowered with complete control of colour of your low-surface temperature radiators with Contour LST radiators, suiting your designs & environments.

Posted in Articles, Building Industry News, Building Services, Health & Safety, Heating Systems, Controls and Management, Heating, Ventilation and Air Conditioning - HVAC, Interior Design & Construction, Interiors, Posts, Research & Materials Testing

  • Share
Vent-Axia

Vent-Axia Supports Clean Air Day 2018

Leading British ventilation manufacturer Vent-Axia is supporting Clean Air Day, taking place on Thursday 21 June.

Posted in Air Conditioning, Articles, Building Industry Events, Building Industry News, Building Services, Health & Safety, Heating, Ventilation and Air Conditioning - HVAC, Interiors, Posts, Research & Materials Testing

  • Share
Rinnai

Carry on caravanning with Rinnai - ideal for all commercial sites

Rinnai, the UK leader in hot water heating units and systems for all commercial and residential sites, has recently completed an installation at a caravan park and holiday multi-activity centre.

Posted in Articles, Building Industry News, Building Services, Case Studies, Heating Systems, Controls and Management, Heating, Ventilation and Air Conditioning - HVAC, Posts

  • Share