ift-guideline WA-08engl/2
"Thermally improved spacers; Part 1: Determination of representative Ψ-values for profile sections of windows"
Seiten
2013
|
2. Auflage
ift Rosenheim (Verlag)
978-3-86791-351-5 (ISBN)
ift Rosenheim (Verlag)
978-3-86791-351-5 (ISBN)
Thermally improved spacers
As set out by the window product standard EN 14351-1 clause 4.12, one of the methods to determine the thermal transmittance UW of windows is by calculation as per EN ISO 10077-1. The quantities required for this calculation are the thermal transmittances of the frame and the glazing, Uf and Ug, respectively as well as the linear thermal transmittance Psi. The Psi-value describes the heat loss caused by fitting the glass in the frame. The amount of this Psi-value depends largely on the type of spacer inserted in the insulating glass unit. In this context we distinguish between ‘conventional‘ and thermally improved spacers. The definition of a thermally improved spacer is included in EN ISO 10077-1 and has again been summarised in the scope of this Guideline.
As set out by the window product standard EN 14351-1 clause 4.12, one of the methods to determine the thermal transmittance UW of windows is by calculation as per EN ISO 10077-1. The quantities required for this calculation are the thermal transmittances of the frame and the glazing, Uf and Ug, respectively as well as the linear thermal transmittance Psi. The Psi-value describes the heat loss caused by fitting the glass in the frame. The amount of this Psi-value depends largely on the type of spacer inserted in the insulating glass unit. In this context we distinguish between ‘conventional‘ and thermally improved spacers. The definition of a thermally improved spacer is included in EN ISO 10077-1 and has again been summarised in the scope of this Guideline.
| Sprache | englisch |
|---|---|
| Maße | 210 x 297 mm |
| Einbandart | geheftet |
| Themenwelt | Technik ► Bauwesen |
| Weitere Fachgebiete ► Handwerk | |
| Schlagworte | Determination • ift guideline • ift guideline WA-08engl/2 • Thermally improved spacers • Thermally improved spacers; • WA-08engl/2 • Ψ-value |
| ISBN-10 | 3-86791-351-X / 386791351X |
| ISBN-13 | 978-3-86791-351-5 / 9783867913515 |
| Zustand | Neuware |
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