ModRoof

The system consists of recycled packaging waste and waterproofing additives enclosed within rectangular 0.5 x 0.5 m with thickness ≅ 0.05 m panels. With structural support, and silicon sealant, the system creates a watertight seal and a unified insulated roof surface. The interior insulation is cardboard waste, surrounded by a custom waterproofing coating. Circular clamps attach the panels to a typical metal tube frame roof structure. ^{Interview with manufacturer}

Pal Re Materials Pvt Ltd provides installation and support services.

15 – 20 year estimated life span ^{Interview with manufacturer}

The roofing panels have been tested for cross breaking strength, thermal conductivity, flammability, thermal stability, thermal shock, water absorption, and creep. Beyond these more formal tests performed by Nirma University, qualitative field tests and user reviews have also been done and several are available on ModRoof’s Facebook page. Of the few installations, field tests and the user reviews have been positive. The system is strong such that the roof can support human occupancy – many families sleep on top of their roof during clear nights.

A recent study performed by researchers at the Gujarat Institute of Desert Ecology, Indian Institute of Public Health, and the Mahila Housing Sewa Trust in India have compared the performance for thermal conductivity of a set of cool roof systems (including the ModRoof system) to conventional roofs made of tin, asbestos, cement sheets, and concrete slabs. The results of the study determined a reduction of 4.5 ºC in indoor temperature on roofs that used the ModRoof system compared to roofs that used tin, asbestos, cement sheets, and concrete slabs

Installers of the roofing panels are subject to the general dangers of any construction site including working from heights and with sharp tools.