Uw values for uPVC parallel slide & tilt doors

The U_w values given below refer to the sample size. The sample size refers to a single-sash window with a width of 1230mm and a height of 1480mm. All U_w values from German manufacturers are determined using this window size. As the window gets smaller, the U_w value goes down accordingly. For larger windows, the U_w value generally improves. The specified U_w values also apply to parallel slide & tilt doors; since the dimensions of a parallel slide & tilt door are larger than those of the sample window size, better Uw values are achieved for parallel slide & tilt doors.

Uw value profile IDEAL 4000

Glass U_g value W/(m²k)	Frame U_f value W/(m²k)	Window U_w value insulating glass edge seal aluminium W/(m²k)	Window U_w value insulating glass edge seal KSD W/(m²k)	Window U_w value insulating glass edge seal Swisspacer Ultimate W/(m²k)
1.1	1.3	1.3 (1.33)	1.3 (1.26)	1.2 (1.24)
1.0	1.3	1.3 (1.26)	1.2	1.2 (1.18)
0.7	1.3	1.1 (1.05)	1.0 (0.99)	1.0 (0.97)
0.6	1.3	1.0 (0.98)	0.9 (0.92)	0.9 (0.90)

Table of Uw values for IDEAL 4000 profiles according to EN ISO 10077-1, see comments 1) 2) 3)

IDEAL 4000 - profile section

Uw value profile IDEAL 5000

Glass U_g value W/(m²k)	Frame U_f value W/(m²k)	Window U_w value insulating glass edge seal aluminium W/(m²k)	Window U_w value insulating glass edge seal KSD W/(m²k)	Window U_w value insulating glass edge seal Swisspacer Ultimate W/(m²k)
1.1	1.2	1.3 (1.29)	1.2 (1.23)	1.2 (1.21)
1.0	1.2	1.2 (1.23)	1.2 (1.17)	1.1 (1.14)
0.7	1.2	1.0 (1.02)	1.0 (0.969)	0.9 (0.94)
0.6	1.2	0.9 (0.95)	0.9 (0.89)	0.9 (0.87)

Table of Uw values for IDEAL 5000 profiles according to EN ISO 10077-1, see comments 1) 2) 3)

IDEAL 5000 - profile section

Uw value profile IDEAL 7000

Glass U_g value W/(m²k)	Frame U_f value W/(m²k)	Window U_w value insulating glass edge seal aluminium W/(m²k)	Window U_w value insulating glass edge seal KSD W/(m²k)	Window U_w value insulating glass edge seal Swisspacer Ultimate W/(m²k)
1.1	1.1	1.3 (1.26)	1.2	1.2 (1.18)
1.0	1.1	1.2 (1.19)	1.1 (1.13)	1.1 (1.11)
0.7	1.1	1.0 (0.99)	0.9 (0.92)	0.9
0.6	1.1	0.9 (0.92)	0.9 (0.86)	0.8 (0.84)

Table of Uw values for IDEAL 7000 profiles according to EN ISO 10077-1, see comments 1) 2) 3)

IDEAL 7000 - profile section

Uw value profile IDEAL 8000

Glass U_g value W/(m²k)	Frame U_f value W/(m²k)	Window U_w value insulating glass edge seal aluminium W/(m²k)	Window U_w value insulating glass edge seal KSD W/(m²k)	Window U_w value insulating glass edge seal Swisspacer Ultimate W/(m²k)
1.1	1.0	1.2 (1.23)	1.2 (1.17)	1.2 (1.15)
1.0	1.0	1.2 (1.16)	1.1	1.1 (1.08)
0.7	1.0	1.0 (0.95)	0.9 (0.89)	0.9 (0.87)
0.6	1.0	0.9 (0.89)	0.8 (0.82)	0.8

Table of Uw values for IDEAL 8000 profiles according to EN ISO 10077-1, see comments 1) 2) 3)

IDEAL 8000 - profile section

Uw value profile energeto 8000

Glass U_g value W/(m²k)	Frame U_f value W/(m²k)	Window U_w value insulating glass edge seal aluminium W/(m²k)	Window U_w value insulating glass edge seal KSD W/(m²k)	Window U_w value insulating glass edge seal Swisspacer Ultimate W/(m²k)
1.0	0.98	1.2	1.1	1.1
0.7	0.95	0,98	0.87	0.85
0.6	0.95	0.91	0.81	0.79
0.5	0.95	0.84	0.74	0.72

Table of Uw values for energeto 8000 profiles according to EN ISO 10077-1, see comments 1) 2) 3)

energeto 8000 - profile section

Uw value profile energeto 8000 ED

Glass U_g value W/(m²k)	Frame U_f value W/(m²k)	Window U_w value insulating glass edge seal aluminium W/(m²k)	Window U_w value insulating glass edge seal KSD W/(m²k)	Window U_w value insulating glass edge seal Swisspacer Ultimate W/(m²k)
1.0	0.81	1.1	1.0	1.0
0.7	0.79	0.93	0.82	0.80
0.6	0.79	0.86	0.75	0.74
0.5	0.79	0.79	0.69	0.67

Table of Uw values for energeto 8000 ED profiles according to EN ISO 10077-1, see comments 1) 2) 3)

energeto 8000 ED - profile section

Windows with a glazing heat transfer coefficient of U_g < 1.9 W/m²K may be specified using the standard dimensions of 1.23 m x 1.48 m.
According to EN ISO 10077, U_wvalues < 1.0 W/m²K are shown with 2 decimal points.
The U_w values given in brackets are not rounded and are for information purposes only.

How is the Uw value of a parallel slide & tilt door calculated?

With a uPVC parallel slide & tilt door, the U_w values are calculated using the individual U values of each window frame and glazing, as well as the heat loss along the edge of the glass. For the sake of comparison, a standard window size of 1230 x 1480 mm is usually used for the calculation, but it can generally be assumed that a larger window will result in a lower value.

A thermally separated edge seal along the insulating glass - the so-called "warm edge" - further improves the thermal insulation of the entire door.

The heat transfer coefficient of a parallel slide & tilt door made of uPVC determines whether a parallel slide & tilt door can be classified as suitable for passive houses. Energy savings not only protect the environment, they also make an immediate difference on your energy bill.

The difference between a _Uw value of 3.5 and a value of 0.83 can make a difference of more than 1000 litres of heating oil per year for an area of 30 m².

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