Roller Blind EOS 500. Glare Control EN 14501

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Preston Woods
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1 Roller Blind EOS 500 Glare Control EN 14501

2 METALISED FABRICS WITH GLARE CLASS 3 Glare Control with Roller Blinds What is glare? Glare is difficulty seeing in the presence of hindering bright light such as direct or reflected sunlight. It is caused by a significant difference in luminance between the task (that which is being looked at) and the glare source. Factors such as the angle between the task and the glare source and eye adaptation have significant impacts on the experience of glare. HOW TO CONTROL GLARE? In order to achieve high visual comfort in daylight conditions, it is very important to control glare, especially in rooms with computer screens or digital boards. A sensible strategy to prevent glare in a building is: 1. To install light controlling devices in front of all glazings near the façade or atrium; 2. Applied systems for light control should allow full control by the individual user (partial or entire closure of the light transmitting surface); 3. Blinds should be compliant with EN 14501:2005 Glare class 3 or 4. WHAT IS EN 14501? European Norm 14501:2005 applies to the whole range of shutters, awnings and blinds defined in EN 12216, described as solar protection devices in this European Standard. It states properties that can be taken into account when comparing products on their performance with regard to thermal and visual comfort. GLARE CONTROL WITH ROLLER BLINDS Roller blinds are an effective light control solution that can provide the combination of glare control and visual contact with the outdoors when applied with glare class 3 fabrics. This document shows which fabrics from the Hunter Douglas project collection have a glare class 3 performance. NON-METALISED FABRICS WITH GLARE CLASS diamond Mandarine Parrot 4634 Carbon 6059 Nutmeg 4723 Pearl 5982 Grey Sable Sky 1306 Bronze 6000 Stone 4722 White Pearl Dusk SunScreen Panama Pro GreenScreen TCS Platinum 4721 White Linen Gold Grey Ultra Marine White Grey Grey Hunter Green SunScreen Panama Pro Pearl 5972 Sunscreen Satiné Low-E Silver Turquoise Apricot SunScreen Panama Pro Cocoa SunScreen Panama Pro 4614 Grey

3 METALISED FABRICS WITH GLARE CLASS 3 Glare Control with Roller Blinds What is glare? Glare is difficulty seeing in the presence of hindering bright light such as direct or reflected sunlight. It is caused by a significant difference in luminance between the task (that which is being looked at) and the glare source. Factors such as the angle between the task and the glare source and eye adaptation have significant impacts on the experience of glare. HOW TO CONTROL GLARE? In order to achieve high visual comfort in daylight conditions, it is very important to control glare, especially in rooms with computer screens or digital boards. A sensible strategy to prevent glare in a building is: 1. To install light controlling devices in front of all glazings near the façade or atrium; 2. Applied systems for light control should allow full control by the individual user (partial or entire closure of the light transmitting surface); 3. Blinds should be compliant with EN 14501:2005 Glare class 3 or 4. WHAT IS EN 14501? European Norm 14501:2005 applies to the whole range of shutters, awnings and blinds defined in EN 12216, described as solar protection devices in this European Standard. It states properties that can be taken into account when comparing products on their performance with regard to thermal and visual comfort. GLARE CONTROL WITH ROLLER BLINDS Roller blinds are an effective light control solution that can provide the combination of glare control and visual contact with the outdoors when applied with glare class 3 fabrics. This document shows which fabrics from the Hunter Douglas project collection have a glare class 3 performance. NON-METALISED FABRICS WITH GLARE CLASS diamond Mandarine Parrot 4634 Carbon 6059 Nutmeg 4723 Pearl 5982 Grey Sable Sky 1306 Bronze 6000 Stone 4722 White Pearl Dusk SunScreen Panama Pro GreenScreen TCS Platinum 4721 White Linen Gold Grey Ultra Marine White Grey Grey Hunter Green SunScreen Panama Pro Pearl 5972 Sunscreen Satiné Low-E Silver Turquoise Apricot SunScreen Panama Pro Cocoa SunScreen Panama Pro 4614 Grey

4 METALISED FABRICS WITH GLARE CLASS 3 Glare Control with Roller Blinds What is glare? Glare is difficulty seeing in the presence of hindering bright light such as direct or reflected sunlight. It is caused by a significant difference in luminance between the task (that which is being looked at) and the glare source. Factors such as the angle between the task and the glare source and eye adaptation have significant impacts on the experience of glare. HOW TO CONTROL GLARE? In order to achieve high visual comfort in daylight conditions, it is very important to control glare, especially in rooms with computer screens or digital boards. A sensible strategy to prevent glare in a building is: 1. T o install light controlling devices in front of all glazings near the façade or atrium; 2. A pplied systems for light control should allow full control by the individual user (partial or entire closure of the light transmitting surface); 3. B linds should be compliant with EN 14501:2005 Glare class 3 or 4. WHAT IS EN 14501? European Norm 14501:2005 applies to the whole range of shutters, awnings and blinds defined in EN 12216, described as solar protection devices in this European Standard. It states properties that can be taken into account when comparing products on their performance with regard to thermal and visual comfort. GLARE CONTROL WITH ROLLER BLINDS Roller blinds are an effective light control solution that can provide the combination of glare control and visual contact with the outdoors when applied with glare class 3 fabrics. This document shows which fabrics from the Hunter Douglas project collection have a glare class 3 performance. NON-METALISED FABRICS WITH GLARE CLASS diamond Mandarine Parrot 4634 Carbon 6059 Nutmeg 4723 Pearl 5982 Grey Sable Sky 1306 Bronze 6000 Stone 4722 White Pearl Dusk SunScreen Panama Pro GreenScreen TCS Platinum 4721 White Linen Gold Grey Ultra Marine White Grey Grey Hunter Green SunScreen Panama Pro Pearl 5972 Sunscreen Satiné Low-E Silver Turquoise Apricot SunScreen Panama Pro Cocoa SunScreen Panama Pro 4614 Grey

Tvdir Tvdir = Direct visual light transmission Tvdir is directly related to the open surface of the light controlling device.

Tvdiff = Diffuse visual light transmission In the case of a screen fabric, Tvdiff is the degree of light shining through the actual fibres of the yarn.

Because visual contact with the outside is generally considered as an important factor contributing to further visual comfort, the demand which best meets controls glare and also allows contact with

WHICH SCREEN FABRICS CONTROL GLARE? In the adjacent table is a resume of fabrics taken from the HUNTER DOUGLAS Roller Blind Project Collection which meet Glare Class 3.

5 HOW TO DETERMINE THE GLARE CLASS? The standard EN 14501:2005 relates the classification for glare control to the direct and diffuse visual light transmission coefficients of the blind (Tvdir and Tvdiff). Tvdir Tvdir = Direct visual light transmission Tvdir is directly related to the open surface of the light controlling device. For roller blind screen fabrics it is also referred to as openness factor (OF). Tvdiff = Diffuse visual light transmission In the case of a screen fabric, Tvdiff is the degree of light shining through the actual fibres of the yarn. Tvdiff + Tvdir = Tvtot = Tv = Total visual light transmission A fabric with Tvdir = 0 is fully closed and does not allow to see through it. Because visual contact with the outside is generally considered as an important factor contributing to further visual comfort, the demand which best meets controls glare and also allows contact with the outside is as follows: 0 < Tvdir en Tvdiff < 2%. Tvdiff Tvdiff < 2% 2% Tvdiff < Tvdir Class 3 Class 2 Tvdir = 0% Class 4 Class 3 This is the blue cell in the schedule above. WHICH SCREEN FABRICS CONTROL GLARE? In the adjacent table is a resume of fabrics taken from the HUNTER DOUGLAS Roller Blind Project Collection which meet Glare Class 3. Fabrics with this classification typically have a dark colour and/ or a metallic back coating to reduce the diffuse transmission of the fabric. Fabrics with Glare Class 4 are generally used to darken the room (black-out). Such fabrics do minimize glare but they are typically not the ideal solution for offices or other working or living environments. For -Out options in the HunterDouglas fabrics collection please refer to our website and other documentation. Naam Kleur LPN Code Openness factor Tvdir Tvdiff Metalised fabrics with glare class 3 diamond Carbon Bronze GreenScreen NRG Platinum GreenScreen NRG Platinum Nutmeg GreenScreen NRG Platinum Stone GreenScreen TCS Platinum Pearl White Pearl White Linen White Sunscreen Satiné Low-E Silver Non-metalised fabrics with glare class Grey Dusk Gold Dusk Gold Grey Turquoise Mandarine Sable Grey Ultra Marine Grey Hunter Green Apricot Parrot Sky Grey Turquoise Mandarine Sable Grey Ultra Marine Grey Hunter Green Apricot Parrot Sky SunScreen Panama Pro SunScreen Panama Pro 1 Grey SunScreen Panama Pro 1 Pearl SunScreen Panama Pro 1 Cocoa SunScreen Panama Pro SunScreen Panama Pro 3 Grey SunScreen Panama Pro 3 Pearl SunScreen Panama Pro 3 Cocoa SunScreen Panama Pro 5 Grey

6 Belgium Bulgaria Croatia / Slovenia Czechia Denmark France Germany Greece Hungary Italy The Netherlands Norway Poland Portugal Romania Russia Serbia Slovakia Spain Sweden Switzerland Turkey United Kingdom Africa Middle East Asia Australia Latin America North America HUNTER DOUGLAS ARCHITECTURAL UK 8 Charter Gate, Clayfield Close Moulton Park, Northampton NN3 6QF United Kingdom Tel.: +44 (0) info@hunterdouglas.co.uk Registered trademark - a HunterDouglas product Pats. & Pats. Pend. - Technical data subject to change without notice. Copyright Hunter Douglas No rights can be derived from copy, text pertaining to illustrations or samples. Subject to changes in materials, parts, compositions, designs, versions, colours etc., even without notice. MX100E00

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