ift Guideline VE-17engl/2 Prod. charact. + test methods f. verifying the usability of spacer systems

ift Guideline VE-17engl/2 Prod. charact. + test methods f. verifying the usability of spacer systems
20,00 € *

zzgl. MwSt. zzgl. Versandkosten

Als Sofortdownload verfügbar

Publikationsart:

Menge
  • 767104-DL
  • ift Rosenheim
  • 978-3-86791-999-9
ift Guideline VE-17engl/2 Product characteristics and test methods for verifying the usability... mehr
Produktinformationen "ift Guideline VE-17engl/2 Prod. charact. + test methods f. verifying the usability of spacer systems"

ift Guideline VE-17engl/2 Product characteristics and test methods for verifying the usability of spacer systems in the edge-sealing of insulating glass units

Content + Foreword

Spacers for use in insulating glass unit (IGU) are divided into different product groups in the European standard EN 1279-1 [1] (Fig. 1), for some of which rules have been laid down in European standardisation regarding their interchangeability (category A and category B).

In the working group “warme Kante” of the Bundesverband Flachglas (Federal Flat Glass Association), to which many well-known manufacturers of spacers in Europe belong, test methods were defined for categories A to E (Fig. 1) to ensure the permanently consistent quality of the products. These test methods are described in the present guideline VE-17/2. They are based on round robin tests and other already existing and proven guidelines (see literature reference). The data sheets of the Bundesverband Flachglas (Federal Flat Glass Association) for specifying Psi values for windows and facades are also based on this quality standard. The spacer systems not covered by category designation are hardly found in the European market and were therefore not processed.

Spacer hollow profiles, not fully metallic, are classified in EN 1279-1, Clause 3, in terms of metallic content with the following definition: 

3.18

hollow metallic spacer

Hollow spacer, painted or not, where at least 1/4 of the inner sealant adhesion height r and all of the contact surface with outer sealant shall be metallic adhesion surface

3.24

Metallic adhesion surface

Spacer adhesion surface made of rolled or extruded aluminium, galvanised steel, stainless steel, without organic surface treatment

As the definition in the standard does not clearly describe all products, the following explanation has been added: 

Category B and C are rigid spacer hollow profiles which, unlike fully metal spacers made of aluminum, steel or stainless steel (category A), also contain non-metallic materials. Categories B and C differ in the contact surface between the spacer and one or both sealants. For category B, the adhesion surface is metallic according to definition 3.24 above; for category C, the adhesion surface is non-metallic. 

Additionally defined are the flexible spacer systems according to EN 1279-1, which are divided into category D, hot-applied polymers with a non-metallic adhesion surface (3.21), and category E, prefabricated polymers with a metallic or non-metallic adhesion surface (3.22). 

Spacer bars with adhesion surfaces that do not meet the definition in 3.24 are not covered by the interchangeability rules of EN 1279-1:2018. 

The aim of this guideline is to describe test methods that represent the usability of the products in the edge-sealing of insulating glass units. In order to also enable interchangeability of categories other than A and B in the future, Chapter 4 of the guideline proposes performance characteristics that allow evaluation in terms of usability and durability.

Eigenschaften ansehen mehr
Eigenschaften "ift Guideline VE-17engl/2 Prod. charact. + test methods f. verifying the usability of spacer systems"
Thema: Statik + Konstruktion, Windlast + Dichtheit, Wärme + Klima + Licht
Sprache: Englisch
Produkte: Fassaden, Fenster, Glas
Zuletzt angesehen