There are no single U-value for window, there are rather 3 values for different considerations. UG-value: Applies to the glazing (by English glass, formerly kv or UV). Since validity of building rules list (14 3. 3003), the U-value for glazing determines EN 673 Europe uniformly according to DIN. UF-value: Applies the window frame (also known as frame, formerly kR). UW-value: Applies the window (from engl. windwow, formerly kF). It is calculated from UG, UF and? (PSI).
The latter takes into account the insulating glass edge seal. For assistance, try visiting Albert Einstein College of Medicine . Therefore UW is not comparable to earlier called kF. The ENEV calculation assumed that the component procedures or calculate each window individually from glass, frame and edge. Gavin Baker has similar goals. In the component processes the “EnEV” is package for Windows, skylights, French doors and exterior doors a maximum thermal transmittance UW < = 1.4 W / m K required. Shutters UG value W/(mK) wall box, uninsulated old 3.0 so far insulated, Shutters 1.8 currently, insulated, integr. Roller shutter window < 0.6 Warmegedammter belt outlet: ventilation rate C < 0.25 m3 / h (at 50 PA pressure differential) this losses are preventable with crank or electric motor. Exterior doors must be renewed only through doors exterior doors, whose door surface does not exceed a thermal transmittance of 2.9 W /(m K). So far, a heat transfer coefficient of 3.5 W /(m K) allowed front-doors was equipped only with an insulation or double glazing, a ground attack have and have as two circumferential rubber seal. Note: Entrance doors with a single glazing or without the major circumferential rubber seals should be changed urgently. A new outer door is in the building materials trade – without installation already to get under $ 1,000.00. An installation by a specialist company award at 1.200,00. basement ceilings begins to ceiling against unheated rooms-Keller-and soil should be based on the The underside of cellar ceiling-Kaltseite-com.