Total approach to airtight construction

From 2020, in accordance with European directive EPBD, all our new buildings must be nearly energy neutral. To achieve this goal, energy-efficient construction is necessary. An important tool for this is airtight construction, which allows you to reduce energy loss through air leaks by up to 30 percent. In addition, the strict separation of indoor and outdoor air prevents condensation in the construction, improves sound insulation and guarantees optimum water tightness, resulting in a very pleasant living environment.

Application of the Celdex EPDM Window Frame Tape.

The Nearly EnergyNeutral Buildings (BENG) developments are in sync with several other trends in construction that are complicating their implementation. For example, construction hands are becoming increasingly scarce, says Claus den Dunnen, Sales Manager of Celdex, producer of plastic foam sealing products. "To overcome this shortage, more and more construction companies are turning to industrialization. This requires a different approach to airtight construction and the products needed for this."

Prefabrication

In the future, he expects more and more use to be made of prefabrication. Both in housing construction and in utility and industrial construction, where products are manufactured in the factory, to customer specifications and under the best (climate) conditions. From construction to installations and facade elements, which are delivered including windows, doors, glazing and sealing materials. "To fulfil this in the best possible way, an integral construction approach is essential," says Den Dunnen. "With our Dichtgarant concept, we match this optimally."

Celdex has been in the business of manufacturing plastic foam sealing products for more than 35 years. "For over 10 years we have been involved in airtight construction. We have developed an extensive range of products, from the air sealing of single and multiple roof penetrations to the imposition and air sealing of floor elements and air sealing of structural frames on sand-lime brick and concrete cavity walls. Typical prefabricated products are the Celdex EPDM Stelkozijnband and Celdex Panelseal and Pre-Seal, for the air sealing of connection joints on lighter and heavier building elements, respectively."

However, Dichtgarant goes beyond sec the development and production of (prefabricated) airtightness products. "It is the name of our total approach to airtight construction, which also includes consulting, training and guidance."

Dense

Dichtgarant, however, goes beyond sec the development and production of (prefab) airtightness products, he says. "It is the name of our total approach to airtight construction, which also includes advice, training and guidance. Three account managers and a product manager for Airtight Building dedicate themselves every day to providing optimum support to contractors, construction companies and the supplying industry. Whether for new construction, renovation or industrial construction. In the advisory phase, we like to think along with you about the construction, use of materials and critical connections. Detailing of roofs, facades, floors and window frames are carefully mapped out, after which we select, produce and deliver the most suitable products for each project. To ensure flawless installation, we also provide proper guidance and training. Upon request, we have the airtightness of our products independently tested before delivery, by means of a thermo-graphic analysis or blower door test."

For the MorgenWonen concept of VolkerWessels, Celdex has developed a prefabricated concept for airtight sealing, incorporating various Celdex products. From a Panelseal for the concrete shell to a PVC 099 for the roof elements and various manchettes for the penetrations. "For WEBO, we have also carried out several projects for scaffoldless construction, which include the EPDM Stelkozijnband and Pre-Seal."  

Detail book for airtight construction

Within the Dichtgarant concept, Celdex has worked toward a Dichtgarant detail book, in which not only the developments, bottlenecks and possible (product) solutions for air dicht building are shared, but more than 50 standard details are also included. You can download the detail book at www.celdex.nl.