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

Aggregate Industries

Full steam ahead for Aggregate with Windermere Jetty project

Aggregate Industries’ expert concrete recently helped to provide a flooring concrete specification for the newly-launched, Lake District’s Windermere Jetty project.

Posted in Articles, Building Industry News, Case Studies, Concrete, Cement, Admixtures, Floors, Hard Landscaping & Walkways, Landscaping, Posts

  • Share
360 Headset_290x290px

Get to know Schlüter with its new VR initiative

Schlüter-Systems is giving customers the opportunity to tour its state-of-the-art UK headquarters via a new virtual reality initiative.

Posted in Articles, Bathrooms, Bedrooms & Washrooms, Building Industry News, Building Products & Structures, Damp & Waterproofing, Floors, Information Technology, Innovations & New Products, Interiors

  • Share
SchlegelGiesse

SchlegelGiesse expansion with acquisition of Reguitti

SchlegelGiesse has acquired Reguitti, the Italian-based manufacturer of handles and assorted accessories for doors and windows, along with its sister brands Tropex Design and Jatec.

Posted in Architectural Ironmongery, Articles, Building Industry News, Building Products & Structures, Doors, news, Posts, Windows

  • Share
176 REHAU 250518 copy_Fotor

REHAU brightens new build property with TOTAL70 Window and Door System

REHAU was recently chosen to provide a splash of colour for a new build property in South Lanarkshire with its TOTAL70 Window and Door System.

Posted in Articles, Building Industry News, Building Products & Structures, Doors, Posts, Windows

  • Share