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sw i2

Info U-value calculation

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sw i2

Certified since	Feb. 3, 2025
Climate zone	Cool, temperate
Type	Operable
Sub type
Efficiency class	phA
Material	Timber / aluminium
`U`_W	0.76 W/(m²K)
Open type	Inward opening

Description

Aluminum-clad timber frame (Spruce/Fir, 0.11 W/(mK)), insulated by low-density wood-fibre board (0,05 & 0,04 W/(mK)) & PU insulation (0,03 W/(mK)). Pane thickness: 48 mm (4/18/4/18/4), rebate depth: 15 mm. Spacer: SWISSPACER Ultimate with polyurethane as secondary seal.

Name	Frame width	U-value	Ψ-value	Frsi-value
Flying Mullion	110 mm	0.73 W/(m²K)	0.022 W/(mK)	0.734
Bottom	86 mm	0.87 W/(m²K)	0.022 W/(mK)	0.706
Top	86 mm	0.66 W/(m²K)	0.023 W/(mK)	0.737
Lateral	86 mm	0.66 W/(m²K)	0.023 W/(mK)	0.737

Component ID

2409wi03

Export

PHPP 9

PHPP 10

Certificate

English

Deutsch

Technical documentation

Manufacturer

I2 SIA

Address

Sauriesi Salaspils District
LV-2118 Guntinas 1
Latvia

Phone

+371 29567758

Email

info@i2.lv

Website

http://www.i2.lv

U-value calculation

Please select preferred window layout

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Installation situation
I want to use my own installation values
Ψ_up= W/(mK) Ψ_down= W/(mK)	Ψ_left= W/(mK) Ψ_right= W/(mK)
Or select certified situation:	`U`_{W, installed} = ? W/(m² K)

U-value calculation
	`b₁`  m	`b₂`  m	`b₃`  m
`h_top`  m `h_bottom`  m				Glazing `U`_g  W/(m² K) g-value
	`U`_W = ? W/(m² K)

Cost calculation
Orientation:	Please choose orientation of the window to get the PHPP-standard values for solar radiation
Degree days: kKh/a Solar radiation: kWh/(m²a)	Reduction factor of solar yield: Shading factor:	Recommended value for reduction factor is 0.9 Shading factor should be between 0.1 and 1. For standard situations see ISO EN 13790
Energy price €/kWh	Real interest rate %	Lifetime Years
Purchase price: €
	Present value (energy) = ? € Present value (total) = ? €

sw i2

sw i2

Description

U-value calculation

Please select preferred window layout

Installation situation

U-value calculation

Cost calculation