2nd Skin Façade System

Resetting the zero-energy renovation market

Climate-KIC Start-Up

Founding Year: 2015

Location: Barendrecht, Netherlands

Many ageing buildings suffer from draft and cold walls. They also waste energy due to lack of insulation and old installations. This is a major societal issue that has proven very difficult to solve for various reasons. The 2nd Skin Façade System – developed by researchers at the Delft University of Technology and supported by Climate-KIC BTA (Building Technologies Accelerator) – tackles this issue. 2nd Skin is a light weight, prefabricated “envelope” system that is attached to the exterior of a building, acting as its second skin. The modular system allows housing corporations to renovate a building and make it energy neutral in one complete phase, or to refurbish the property step-by-step. The advantage of the latter is that it doesn’t require a full upfront investment, an approach that is more in line with many property owners’ finances.

2nd Skin:

  • Keeps the refurbishment costs at an acceptable level because of the industrial, scalable approach;
  • Creates little hassle for the occupants not only during the refurbishment, but also during maintenance work, as most of the work is done on the exterior;
  • Saves roughly 68 kg CO2 e/m2/year compared to regular renovations.



Team Members: Sacha Sylvester (TU Delft), Tillman Klein (TU Delft), Stella Boess (TU Delft), Elske van der Ende (TU Delft), Jasper Sluimer (BIK bouw BV), Onno de Wal (BIK bouw BV), Rob van Rijs (BIK bouw BV), Elles de Wal (BIK bouw BV).