Gradwall

Info U-value calculation

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Gradwall

Certified since	June 17, 2025
Climate zone	Warm, temperate
Type	Connection
Sub type	Roller shutter
Efficiency class	phC
Material	PVC
`U`_W	1.00 W/(m²K)
Open type

Description

Airtight sun protection system made of blown-in Neopor reinforced with foamed PVC. It forms an insulated perimeter that incorporates the SUPERGRADHERMETIC adjustable roller blind and serves as a window mounting system. Maximum shutter height: 2750 mm.

Name	Frame width	U-value	Ψ-value	Frsi-value
Bottom	125 mm	0.92 W/(m²K)	0.038 W/(mK)	0.670
Head	125 mm	0.92 W/(m²K)	0.038 W/(mK)	0.670
Jamb	125 mm	0.92 W/(m²K)	0.038 W/(mK)	0.670

Component ID

2471rs04

Export

PHPP 9

PHPP 10

Certificate

English

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Manufacturer

INDUSTRIAL GRADHERMETIC, S.A.E

Address

Avenida de Béjar 345
08226 Terrassa, Barcelona
Spain

Phone

(+34) 93 731 44 08

Email

info@gradhermetic.es

Website

http://www.gradhermetic.es

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) = ? €

Gradwall

Gradwall

Description

U-value calculation

Please select preferred window layout

Installation situation

U-value calculation

Cost calculation