Object reportage: Relaxed bathing

REFERENCES

Relaxed bathing

Wellness area renovation in the
Rhine-Neckar District

Sauna sessions are not only healthy, but also relaxing. Visitors to the new wellness oasis in Heddesheim, Baden, will also benefit from this. The municipality’s aging indoor swimming pool was extensively renovated between 2016 and 2021 and expanded to include a new sauna area. To ensure long-term moisture protection for the high-quality facility, various waterproofing products from Botament, the Bottrop-based system construction expert, were used during the extensive wall and floor renovation.

The indoor swimming pool in the Baden-Württemberg municipality of Heddesheim was built in the 1970s and will be extensively modernized in two construction phases between 2016 and 2021. Photo: Blim GmbH Municipality of Heddesheim
The designs for the redesign of the 2,000-square-meter wellness oasis with changing room, restroom and staff area were provided by Stuttgart-based interior designer Gennaro Cittadino and the engineering firm Kurzmann from Sankt Leon-Rot. Photo: Blim GmbH Municipality of Heddesheim

In their free time, around 26 million wellness enthusiasts visit saunas and steam baths throughout Germany. The healthy and relaxing trend also continues in Heddesheim – around 14 kilometers east of Mannheim. For this reason, the aging indoor swimming pool in the Baden-Württemberg community was not only extensively renovated, but also equipped with a new, spacious sauna area. Thus, between 2016 and 2021, an attractive leisure offer in a modern design was created.

Leisure and sports

The Heddesheim indoor swimming pool was built in the 1970s as part of the urban sports development program. Complementing the local bathing lake with outdoor pool, the plain indoor swimming pool was to offer school classes and clubs as well as private visitors the opportunity to go swimming all year round, regardless of the weather. The flat-roofed building with a pool for swimmers and non-swimmers as well as a small sauna area was heavily frequented in the following years. For this reason, an extensive overall renovation and modernization of the facility was finally decided in 2015, as well as the expansion of the outdated sauna area.

Modern wellness oasis

In a first construction phase starting in 2016, the exterior facades of the indoor pool were first renewed, deficiencies in the ventilation system and leaks in the building shell were eliminated, and the existing pools were renovated. In 2020, the local council gave the go-ahead for the next phase of construction on the extensive project, which would be dedicated to the interior of the facility. The designs for the redesign of the 2,000-square-meter wellness area with locker room, restroom and staff area came from the engineering firm Kurzmann from Sankt Leon-Rot and the Stuttgart-based interior designer Gennaro Cittadino. In order to offer indoor pool visitors a modern ambience in the future and at the same time create more space and clarity, the entire changing room and staff area as well as the existing sauna facility were first completely gutted.

Washed with all waters

Die Fliesenmeister KD” from nearby Wald-Michelbach were commissioned with the reconstruction of the entire area. The tasks of the family-run master craftsman’s business included both the delivery and installation of the new screed and the production of the differently classified waterproofing on the wall and floor surfaces. Specialized system lines and waterproofing products from Botament were used to meet the respective quality and testing requirements of the various water impact classes and to guarantee long-term moisture protection. The planning of the project as well as the selection of the appropriate products took place in close cooperation between the team of craftsmen and the manufacturer. As a reliable partner, Botament’s field service also supported on-site processing and provided advice on difficult questions regarding DIN standards.

Sport schedule

To prepare the wall and floor surfaces for the appropriate build-up, they were first painted with Botament D11 Tiefengrund. The fast-drying primer reduces the absorbency of the substrate and in this way also improves the adhesion of subsequent applications – such as the filler. The changing areas were then lined with a Botament waterproofing membrane in accordance with their use. The universally applicable composite waterproofing is particularly convincing with its quick and easy installation and can be used under tile and natural stone coverings. The elastic and highly tear-resistant material also exhibits high alkali and aging resistance – another advantage when used in high-traffic areas. The transitions of the wall and floor connections were sealed with transversely elastic system sealing tapes and the associated molded parts.

The entire changing room and employee area as well as the existing sauna facility were first completely gutted.
The changing areas were lined with a Botament waterproofing membrane for water exposure classes W0-I to W2-I.

Railroad by railroad tested quality

Since some areas of the Heddesheim indoor swimming pool are more exposed to water, additional waterproofing systems from the building materials expert were used. With this in mind, the floors and walls of the toilets, staff, wellness and shower areas were waterproofed with Botament AE waterproofing and decoupling membranes and the corresponding system sealing tape for stress class C. The composite sealant has been tested for water impact classes W0-I to W3-I and is thus suitable for surfaces heavily exposed to water. According to PG-AIV-B (BKC), the fleece-laminated polyethylene sheets are also resistant to additional chemical effects – such as chlorine in this case. The waterproofing membranes were each bonded with Botament MD1 Speed. This flexible waterproofing slurry is impermeable to water in accordance with DIN EN 14891 and can be covered with tiles after just a few hours.

Friendly look

In order to guarantee a smooth construction site process, the tile installation products required for the implementation of the project were also purchased from a single source from Botament. The experienced KD team led by master tiler Volker Fiederlein also executed the robust covering. For the tile backsplash, the client opted for a large-format porcelain stoneware covering in natural shades of gray and beige. Small-format glass mosaics in the corresponding color shades form another eye-catcher. The fluidized bed and lightweight adhesives used for installation were selected – as were the geomembranes – according to their required classification. Thus, both the Botament M29 HP Premium Flex flooring adhesive and the particularly light and supple MULTISTONE multifunctional natural stone and tile adhesive were used. Thanks to its S1/S2 classification and crystalline water-binding properties, this material is ideally suited for laying large-format tiles, slabs and natural stone and has particularly high stability – both on the wall and on the floor. Thanks to its variable consistency setting, the multifunctional natural stone and tile adhesive can be used for countless standard and special applications with a layer thickness of up to 30 millimeters.

The pavement was installed with the appropriate fluidized bed or lightweight adhesive - so both M29 HP and MULTISTONE were used.
Jointing was also subsequently carried out with differently classified product lines from the Bottrop-based system manufacturer. MULTIFUGE Fine Speed grout for weak and non-absorbent materials was used in the changing rooms, toilets and staff areas.
Due to its high resistance to abrasion, the project participants opted for MULTIFUGE Diamond MAX reactive resin grout and adhesive mortar, which is highly resistant to both chemical and mechanical stresses, for the heavily frequented shower area.
Botament's differently classified waterproofing and tile installation systems ensure high quality and durability of the new wellness oasis. Photo: Blim GmbH Municipality of Heddesheim

Resistant to abrasion

Grouting in the changing rooms, toilets and staff area was then carried out with Botament MULTIFUGE Fine Speed for weak and non-absorbent materials. Due to the rapid early strength of the grout, quick washing of wall and floor surfaces was possible after only a short time. In the shower area, which is particularly heavily frequented, those involved in the project opted for MULTIFUGE Diamond MAX, a reaction resin grout and adhesive that is highly resistant to both chemical and mechanical stresses. Since this is extremely resistant to abrasion, the surface can be easily cleaned with a high-pressure cleaner. Finally, the joints in all areas were filled with Botament S5 Supax System Silicone. Both the grout and the silicone were color-coordinated with the overall concept of the indoor pool.

After only one year of closure, the indoor swimming pool in Heddesheim was finally able to reopen in September 2021 and now offers not only swimming enthusiasts but also sauna fans a modern leisure experience. Botament’s waterproofing and tiling systems ensure the high quality and durability of the new wellness oasis, regardless of the water exposure class of the various rooms.


Construction panel:

Building project: Renovation of indoor swimming pool and sauna area, Heddesheim, Baden-Wuerttemberg
Client: Municipality of Heddesheim, Baden-Württemberg
Waterproofing and tiling work: Die Fliesenmeister KD, Wald-Michelbach
Manufacturer waterproofing system: Botament GmbH, Bottrop
Implementation period: 2020 – 2021

The floors and walls of the restrooms, staff, spa and shower areas were waterproofed with Botament AE waterproofing and decoupling membranes for exposure class C. In this way, the walls of the sauna could also be safely protected from moisture penetration in a very short time. Photo: Blim GmbH Municipality of Heddesheim
In September 2021, the indoor swimming pool in Heddesheim was finally able to reopen and now offers not only swimming enthusiasts but also sauna fans a new leisure experience. Photo: Blim GmbH Municipality of Heddesheim