Our unique VenSulation system comprises of two parts: For ventilation, we regulate the humidity level so there is no build-up of excess moisture, through the mean of Heat Recovery Ventilation (also called HRV); for insulation, we eliminate air gaps within the wall cavity so no moisture could come into contact with the metal surface and form condensation.
a. Because containers are more airtight than conventional homes, they need to rely on natural ventilation through windows and doors for air exchange, which also means a decrease of thermal efficiency. That is why we add mechanical ventilation to our system. We use Zehnder’s Heat Recovery Ventilation (or HRV), which can retain up to 85% of thermal energy while bringing in fresh filtered air in exchange with stagnant air. So, on a cold winter night, you can keep warm with all the windows shut, and still be able to enjoy the ventilated fresh air, all from just 8W of power. The HRV also maintains a constant humidity level inside the home by eliminating excess moisture that’s generated by cooking, washing and breathing. Having a HRV helps make your home more energy efficient as it reduces the load on your air conditioning system, and most importantly, it ensures a healthy and comfortable living space.
b. Insulating a container is trickier than a normal home, due to the limited width and the corrugated metal walls. To prevent condensation (a precursor to mould growth), moisture must NOT come into contact with the internal metal surface. To achieve this, we CNC-cut cured PUR blocks into the same profiles as the metal wall in order to fill in the corrugations, followed by flat PUR panels, usually between 35 and 70mm. As a result, the PUR acts as a vapour barrier between the container wall and the interior space, maximising thermal and sound insulation as well as eliminating air cavities. We choose PUR for its
100% vapour resistance and the superior insulating performance compared to EPS and other materials. We also offer additional insulation underneath the floor to stop the loss of warm/ cool air due to draught.