Cookies By using our website, you explicitly agree to the use of cookies and the usage of your personal data to access our website for the purpose of improving our online content. This consent also includes the use by us of service providers, such as Google Analytics, and the sharing of data with these for this purpose. You can find further information in our Privacy Policy. This site uses cookies in order to improve your user experience. For more information (including an opt-out), see details.



Hertalan recently partnered with Green Unit Ltd to assist them in waterproofing the roof of their new hi-tech modular sustainable building 'Arc Haus'.

Easy Cover EPDM membranes were adhered to the roof using KS205 spray adhesive and the necessary joints were completed using Easy Weld cover strips, all under the supervision of our technical services manager Stewart Orton.

The arc-haus is a unique, modular and hi-tech eco-structure that uses sustainable materials and processes. It exceeds the latest building regulations for domestic and public use and is built according to passiv haus principles.


The arc-haus is an aspirational, sustainable building with applications for domestic, business and community uses. High flexibility enables a wide range of options for size and internal layout configurations.


With its curved shape and green roof visible at ground level, the arc is designed to evoke a natural environment, while the attractive contours of the arc create a comfortable and spacious interior.

Arc Haus with green roof
Arc Haus with green roof
Jonathan welding

John Whittaker

Manager Hertalan UK


Afbeelding: John Whittaker