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Biobased Cassette

Info U-value calculation

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2558wi03 Biobased Cassette: (Operable): OB1

Biobased Cassette

Certified since	Jan. 13, 2026
Climate zone	Cool, temperate
Type	Operable
Sub type
Efficiency class	phB
Material	Timber
`U`_W	0.78 W/(m²K)
Open type
EnerPHit	False

Description

Timber frame window made from thermally modified timber (0,095 W/(mK)) with insulation core of cork resin (0,040 W/(mK)). Pane thickness: 44 mm (3/18/2/18/3), rebate depth: 12 mm.

Name	Frame width	U-value	Ψ-value	Frsi-value
Mullion 1 casement	152 mm	0.79 W/(m²K)	0.026 W/(mK)	0.71
Bottom	125 mm	0.75 W/(m²K)	0.026 W/(mK)	0.73
Head	125 mm	0.75 W/(m²K)	0.026 W/(mK)	0.73
Jamb	125 mm	0.75 W/(m²K)	0.026 W/(mK)	0.73

Component ID

2558wi03

Export

PHPP 9

PHPP 10

Certificate

English

None

Manufacturer

Nieuwebouwen advies/ Bosgroen kozijnen

Address

Kleine Kanaaldijk 17
4231BD Meerkerk
Netherlands

Phone

0031-6 21236806

Email

info@nieuwebouwenadvies.nl

Website

http://www.nieuwebouwenadvies.nl

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) = ? €

Biobased Cassette

Biobased Cassette

Description

U-value calculation

Please select preferred window layout

Installation situation

U-value calculation

Cost calculation