Pre-fabricated wooden elements preserve historic Kaifu-Bad bath complex

Pre-fabricated wooden elements preserve historic Kaifu-Bad bath complex

  • 20 Apr 2016

Kaifu-Bad, the oldest swimming pool complex in Hamburg, has been subject to a major renovation project which has used pre-fabricated wooden elements by Metsä Wood. 

Original Kaifu-BadKaifu-Bad is a protected monument built originally in 1895. Prior to the renovation, the complex had been closed for several years due to its unstable roof, which was in danger of collapsing. 

The renovation project posed several challenges for architects MRLV and WTM Engineers: the need to respect the protected design, tolerate the salt-water baths and high levels of humidity and meet modern sustainability standards.

A number of Metsä Wood’s pre-fabricated wooden elements were specified as a solution.

Protecting against humidity and corrosion

A major part of the renovation saw one of the pools converted into a salt-water bath. This posed an issue for the architects as, due to the water’s salt content of 6%, a steel solution would be exposed to high levels of corrosion.

Therefore the old roof truss needed to be replaced with a steel-free construction – the whole renovation was completed without metal joints.

MRLV specified Metsä Wood’s industrially manufactured Kerto-Q wooden trusses as the primary material as it could handle the changes in temperature as well as the corrosive effects of the high humidity and salt water.

By specifying a pre-fabricated material, the project also succeeded economically: all the wooden parts delivered ready to install on site, resulting in significant savings in construction time. 

Kerto LVL (Laminated Veneer Lumber)

Throughout the Kaifu-Bad renovation, the Kerto products were used in a variety of different applications including beams and panels.

Structures created using Kerto proved strong and dimensionally stable. For instance, despite the 14m long span, the main trusses could be manufactured in a thickness of just 134mm. 

The Kerto-Q panels also preserved the historical barrel shaped vault by allowing an arched cut off the bottom of the trusses. The 69mm thick Kerto-Q panels used for the roof shell paneling also stiffened the roof structures and stabilised the original brick walls against wind loads.

Leave a Reply

Latest news

Nationwide Windows

Nationwide launch next generation GRP fire door range

Nationwide Windows & Doors has devoted time, clever product design and testing at levels never previously seen to launch its next generation GRP fire door range.

Posted in Access Control & Door Entry Systems, Articles, Building Industry News, Building Products & Structures, Doors, Health & Safety, Innovations & New Products, Retrofit & Renovation, Security and Fire Protection, Windows


2020 weather data proves humidity concern for construction say Aggreko

Data showing spiking humidity levels on construction sites are a growing concern for the sector, according to a new report from temporary power company, Aggreko.

Posted in Articles, Building Industry News, Building Services, Facility Management & Building Services, Health & Safety, Heating Systems, Controls and Management, Information Technology, Posts, Research & Materials Testing, Site Preparation, Thermal Imaging and Monitors


Kingspan chosen for affordable housing scheme

Leading housing provider Stonewater is taking full advantage of the excellent thermal efficiency of Kingspan Kooltherm K108 Cavity Board at a new affordable housing development in Dorset.

Posted in Articles, Building Industry News, Building Products & Structures, Building Services, Case Studies, Insulation, Restoration & Refurbishment, Retrofit & Renovation, Walls


The Power of Many: national supply, local service from Freefoam

Freefoam has strong ties with contractors, architects and specifiers, thanks to its ‘The Power of Many’ approach.

Posted in Articles, Building Industry News, Building Products & Structures, Cladding, Posts, Restoration & Refurbishment, Retrofit & Renovation, Roofs, Walls