Low-cost, self-built housing continues to be a resource solution for the poor in many parts of the world. This type of building does not guarantee adequate indoor comfort conditions and is particularly vulnerable to climate change and consequent heat waves. The test laboratory for low-cost housing thermal insulation systems consists of a set of outdoor test chambers located on the solar campus. These primitive chambers can be configured with various roofing and interior thermal insulation solutions. Currently this facility is being used to test insulation solutions based on recycled materials with great installation simplicity.