School building complex designed according passive house standard - ThermoPin®

The Swedish precast concrete manufacturer Torps Byggelement AB was commissioned to produce precast elements for a school building complex ("Paradis School" in Älmhult, Sweden). This project was to meet the passive house standard. After extensive research, they came across our ThermoPin and realized that this was the right product for their project.

The new school building is designed for classes 1 to 6 with a capacity of 800 students. The construction area is approx. 8,500 m² of utilisable surface plus a sports hall with over 3,000 m². Since the building complex had to meet the passive standard, it was enormously important to make the building envelope as thermally efficient as possible without having to compromise on the impressive architecture. In their search for efficient construction methods and products, Torps Byggelement AB came across the ThermoPin® from BT innovation.

This composite anchor made of heat-conduction-resistant, glass-fibre reinforced plastic (GRP) connects the load-bearing shell, through the insulation layer, with the curtain wall in a statically and energetically highly efficient manner. In other words, with the help of the ThermoPin, the supporting structure can be almost completely thermally decoupled from the façade. Compared to conventional stainless steel connection systems, the use of the ThermoPin as a GRP anchor can achieve a reduction in the thermal conductivity coefficient or heat loss of the building envelope of approx. 6.7%.

In addition to the energy improvement, the CEO of Torps Byggelement AB Henrik Engström and the production manager Morgan Karlsson summed up that the installation of the ThermoPin is in all respects much simpler than the installation of traditional anchor systems. For example, much reduced insulation cutting was required, which also resulted in less waste. The installation of the ThermoPin also requires no machinery or tools. In all, Torps Byggelemet AB found that by simplifying and speeding up the installation for the production of an average-sized element (approx. 20 m²), they saved 30 minutes in production. With a total production time of one element of approx. 20 working hours (2.5 employees x 8h), the saving in working time is therefore 2.5%.

Thanks to the positive experience, Torps Byggelement AB has used the ThermoPin for two follow-up projects since and continue to be well satisfied with the result.

Here you can find more about this project.