HyPar Thin Shell Concrete Roof

George Nez and Albert Knott

The HyPar Thin Shell Concrete roof is a roofing system made from a mixture of cement, sand, water and acrylic latex on a mesh base forming a thin shell.

Product description Brand name and product description

The HyPar Thin Shell Concrete Roof is a roofing system developed by George Nez and Albert Knott of [TSC Global] who trained groups in several developing countries in how to construct them. One of the groups they trained is Technology for Tomorrow (T4T) who is offering the roofs as a building product in Uganda.

The roofs are 1 cm thick and made from a mixture of cement, sand, water and acrylic latex on a fibreglass mesh or cloth and light wire mesh base. The shell layer is supported on a four sided pyramid framework of timber that creates a hyperbolic parabola shape.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Africa, Latin America & the Caribbean, Asia, North America, Uganda, Tanzania, Kenya, Sudan, South Sudan, Haiti, Thailand. TSC Global has a webpage that shows the locations of their projects or collaborations.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

TSC Global has partnered with Technology for Tomorrow (T4T) , Engineering Ministries International (EMI), and the government of Haiti for their BBBC (Build Back Better Communities) campaign.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.


Competitive landscape Similar products available on the market. May not be a comprehensive listing.

There is no similar product that is as lightweight. It competes with whatever roofing is typical for small buildings in each region such as corrugated metal roofs, thatch roofs, or standard concrete roofs.

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 1 and 11: Aims to provide affordable shelter that is better for the environment.

Target user(s) Target user/consumer base (country, income segment)

Implementing organizations, households, public sector, private sector.

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