About this site
This website is dedicated to the remarkable structure called the Valhalla. It is one of the most efficient portable structures ever built. It weighs 180 tonnes but weighs less than the air inside it. It has housed many multi million dollar events around the world. This website is provided as a free resource to students and followers of portable structure technology and can be freely copied, provided that this site is mentioned and a link is provided. Otherwise copyright© Rudi Enos 2025.
"It seems that perfection is attained not when there is nothing more to add, but when there is nothing more to remove"
Rudi Enos
Special Structures Lab founder and award-winning engineering designer Rudi Enos is one of the foremost designers of special structures in the world. Long-span structures, and in particular long-span tension membrane structures, require specialist expertise in design, analysis, manufacturing techniques, and installation procedures. Only a handful of engineers in the world have this expertise and Rudi is one of that select group. His portable venue designs are used to house the largest audiences, the most prestigious events and the most graceful installations the event business has ever seen.
Rudi has 40 years’ experience working on special structures in the events and construction industries, such as tension membrane roofs or innovative or lightweight access solutions. His structures have been used for all types of events; political, cultural, and economic forums, religious, cultural and music festivals. All over the world his designs have been manufactured and installed. From exhibition design to demountable seats, stages and fold out trailers, Rudi Enos is one of the most prolific designers in the field of special structure engineering. He provides specialist consulting services to the construction industry for special structures.
Rudi Enos was born in America to an entertainment family, but has lived most of his life in England, where he is now an adopted Yorkshireman. He loves ‘God’s own country’ and embraces everything about it. He has interests in travel, music, the arts, and live performance of almost any kind.
This website is sponsored by Special Structures Lab in Sheffield UK. https://www.specialstructures.com/
Rudi:
The Guild of TentMasters member and chair - https://www.tentmasters.org/
IASS Member - International Association for Shell and Spatial Structures - https://iass-structures.org/
TensiNet Member - https://www.tensinet.com/index.php
RSA (Royal Society of the Arts) Fellow - https://www.thersa.org/