International Prestressed Hollowcore Association

WHY HOLLOWCORE?

At the Heart of the Global Prestressed Hollowcore Industry Since 1969.

The International Prestressed Hollowcore Association is a truly diverse, global organisation. For nearly six decades, it has been instrumental in driving the industry forward.

Since its inception, IPHA has been integral in the design, development, production, marketing and sales of prestressed hollowcore as a building product.

Full Members

Associate Members

Countries

Years of Hollowcore Experience

Latest News

IPHA Hours at Bauma 2025

IPHA Hours at Bauma 2025

Held every 3 years in Munich, Germany — Bauma is the world’s largest construction industry trade fair. There is simply no other event bringing together this many people from across our industry, and it is well-known for its hospitality and lively atmosphere. We're...

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We Strengthen the Competitive Position of Our Members

IPHA plays an active role in research and development within the hollowcore industry, leading projects such as HOLCOTORS, HOLCOFIRE and HOLCOLODIS.

We Bring the Prestressed Hollowcore Industry Together

Events such as our Annual Conference, Production, Technical and Sales & Marketing Seminars promote collaboration and the free exchange of knowledge between international members.

Members

Discover the internationally diverse range of hollowcore producers and associated companies that form the IPHA membership.

Projects

IPHA Members have been involved in many fantastic, innovative and iconic construction projects around the globe, using hollowcore slabs.

Organisation

IPHA is managed by an elected board of directors, and incorporates separate technical and marketing committees to deliver on its objectives.

A World-Class Association with a Clear Vision for the Future

Discover how IPHA’s vision for the future will help to promote hollowcore as a sustainable building product and facilitate international collaboration between its members.

Join the IPHA Family

IPHA is a family. Learning from one another, staying at the forefront of prestressed hollowcore technology.