The 2019 Annual Conference of IPHA took place in Soenderborg, Denmark from May 23 to 26. IPHA, the International Prestressed Hollowcore Association, is dedicated to this special field of precast prestressed floors and walls. Its history goes back nearly 50 years and brings together a wealth of experience in design, development, production and marketing of hollowcore as a building product. It justifiably deserves its reputation as a centre of excellence for anyone involved in the industry and for designers of all disciplines. Membership of IPHA is open to manufacturers of hollowcore and suppliers of equipment, principal materials, specialised software, and other relevant service providers. The current membership comprises 85 companies from 36 different countries around the globe.