Buitink Technology realized an air inflated ETFE cushion roof in the centre part of a public square in shopping centre Bisonspoor in Maarssen (the Netherlands).

The air cushion roof consists of 18 ETFE cushions covering a total surface area of 315 m².

Heat reflecting ETF roof

The roof consists of 3 layers of ETFE foil (2 air chambers. The outside layer is coated with a heat reflecting so called "infra red block". The infra red block foil still is very transparent for light, but blocks effectively heat from sun-radiation. 

In below graph a comparison of the transmission is shown between a standard ETFE foil (''T Standard natural'') and an IR block foil (''T IR-cut'').

	3 layer ETFE clear	1 layer IR-cut / 2 layer ETFE clear
Direct energy transmission:	0,74	0,36
Radiation reflectance:	0,22	0,11
Light transmission grade:	0,71	0,44
Light reflection grade:	0,24	0,11
UV- transmission grade:	0,45	0,19
Solar heat gain coeffincient:	0,75	0,41

Air equipment and SS tubing is delivered and installed by Buitink technology as well.

Project data air cushion roof

Sizing:	315 m2, made of 18 ETFE cushions
Material:	ETFE foil, transparent with infrared block
Client	Wintertrust
Architect:	Op ten Noort Blijdenstein
Main contractor:	Bouwbedrijf Pennings BV
ETFE air cushion roof:	Buitink Technology
Year of construction:	2019

Location

Bisonspoor 2017, 3605 LB Maarssen (the Netherlands)