TEC – Thin Environmental Cladding

  • Alan Tomasi Permasteelisa Group, Vittorio Veneto
  • Danijel Mocibob Permasteelisa Group, Vittorio Veneto
  • Bert van de Linde Permasteelisa Group, Vittorio Veneto
  • Frank Wellershof HafenCity Universitat Hamburg
  • Kristian Koldtof Fiberline Composites, Middelfart


Permasteelisa Group developed with Fiberline Composites a new curtain wall system (Thin Environmental Cladding or TEC), making use of pultruded GFRP (Glass Fiber Reinforced Polymer) material instead of traditional aluminum. Main advantages using GFRP instead of aluminum are the increased thermal performance and the limited environmental impact. Selling point of the selected GFRP resin is the light transmission, which results in pultruded profiles that allow the visible light to pass through them, creating great aesthetical effects. However, GFRP components present also weaknesses, such as high acoustic transmittance (due to the reduced weight and anisotropy of the material), low stiffness if compared with aluminum (resulting in higher facade deflection) and sensible fire behavior (as combustible material). This paper will describe the design of the TEC-facade, highlighting the functional role of glass within the facade concept with regards to its acoustic, structural, aesthetics and fire behavior.


ASTM E1300-09a 2009. Standard Practice for Determining Load Resistance of Glass in Building. West Conshohocken: ASTM International

CWCT 2005. Standard for systemized building envelopes. Bath: Centre for Window and Cladding Technology

EN 13501-1 2007. Fire classification of construction products and building elements – Part1: Classification using test data from reaction to ire tests. Brussels: CEN – European Committee for Standardization

ETAG002-1 1999. Guideline for European technical approval for structural sealant systems (SSGS) – part 1: supported and unsupported systems. Brussels: EOTA – European Organization for Technical Approvals

Fiberline Composites 2002. Fiberline Design manual. Middelfart: Fiberline Comspoites A/S

ISO 527-1 2012. Plastics – Determination of Tensile properties – Part 1: General properties. Genève: International Organization for Standardization

Straus7 2004. Finite Element Analyses System Straus7 Release 2.3.3. G+DComputing.
How to Cite
TOMASI, Alan et al. TEC – Thin Environmental Cladding. Journal of Facade Design and Engineering, [S.l.], v. 2, n. 1-2, p. 19-32, may 2015. ISSN 2213-3038. Available at: <https://journals.open.tudelft.nl/index.php/jfde/article/view/880>. Date accessed: 23 mar. 2019. doi: https://doi.org/10.7480/jfde.2014.1-2.880.