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Daylight systems

Daylight systems
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Daylight systems

Product catalog summary
Overview
The document provides comprehensive information on alwitra's daylight systems, including rooflight systems, smoke and heat vents, and flat roof windows. It highlights their role in modern architecture to enhance natural lighting and ventilation.
Daylight Systems
Alwitra daylight systems are designed to maximize natural light in buildings, enhancing well-being and productivity. These systems are particularly effective for flat roofs, offering benefits such as natural ventilation and smoke venting. Key features include excellent thermal insulation, easy installation, and compatibility with alwitra waterproofing membranes.
Alwitra Kerbs
Constructed from impact-resistant PVC with a cellular system for superior thermal insulation, alwitra kerbs are available in various models (1600, 1620, 3020) with different heights and tapering features. They are suitable for different rooflight installations and can be fitted with EVALON® or EVALASTIC® collars for reliable waterproofing.
Rooflights
Alwitra rooflights are available in single to multi-shell versions, offering varying levels of thermal insulation and light transmission. They include anti-vandal systems and come in different sizes and configurations to meet specific building requirements.
Opening and Ventilation Systems
Rooflights can be used for ventilation, smoke venting, or roof access, with options for manual or electric opening systems tailored to specific needs.
Natural Smoke Extraction
Alwitra provides electronically controlled smoke vent systems for stairwells, ensuring safe escape routes and daily ventilation. These systems feature 24 V DC motor openers and can include roof hatch functions.
Technical Specifications
The document includes detailed technical data on kerbs and rooflights, such as thermal properties, dimensions, and available models, ensuring users can select the appropriate system for their needs.
Specifications and Components
The document outlines specifications for a drive and ventilation circuit, including the capacity for connecting up to 10 release buttons, smoke detectors, and ventilation switches. Optional accessories include a relay board and sensors for wind and rain, with support for connection to external bus systems via an auxiliary module.
Monitoring Functions
Monitoring includes mains, battery, charging circuit, drive circuit, and two signal circuits for manual and automatic release.
Cabinet Details
The cabinet is available for surface or flush mounting, made of steel, and comes in light grey (RAL 7035).
Alwitra DayLuxe Window
This high-quality flat roof window is part of the alwitra daylight system, featuring a multi-cell frame with laminated safety glass. It offers thermal insulation (U value < 1.00 W/m²K), sound insulation (Rw = 40 dB), and fall-through resistance of 1,200 J. It is compatible with alwitra rooflights and kerbs.
Versions
Two versions are available: fixed and ventilated. The fixed version has a concealed latch, while the ventilated version includes a chain actuator for daily ventilation, with remote control.
Technical Data
The window has a U value of < 1.00 W/m²K, light transmittance of 78%, and is CE-marked according to DIN EN 1873.
Brakel® Greenlite
This flat roof window made of aluminium and glass is designed for residential and commercial buildings, offering high thermal and sound insulation. It is available in fixed and ventilated versions, with a modern design and a range of sizes.
Energy Efficiency
Brakel® Greenlite and Greenlite triple offer energy-saving features with thermally-separated systems and sound insulation (Rw = 31 dB). The U value ranges from 0.97 to 1.02 W/m²K for Greenlite and 0.52 to 0.53 W/m²K for Greenlite triple.
Technical Data and Accessories
Available sizes range from 60x60 cm to 130x240 cm. Optional accessories include sunshade glazing, sun blinds, insect screens, and rain sensors. The system features high water tightness, air permeability, and fall-through resistance.
Conclusion
The document concludes with an overview of alwitra daylight systems, including various kerbs and rooflight options.
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Catalog excerpts

Daylight systems-1

Rooflight systems Daylight systems Smoke and heat vents Flat roof windows Brakel® Greenlite

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Daylight systems-2

alwitra waterproofing system Daylight systems are part of the proven alwitra waterproofing system. This system comprises: Waterproofing membranes Roof edge trim profiles incl. colour coating Wall capping profiles incl. colour coating 4 Wall flashing profiles incl. colour coating Coated metal sheets Colour coating Snow guard profiles Daylight systems Rainwater outlets Flat roof vents 11 Paving slab supports

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Daylight systems-3

alwitra daylight systems Light is playing an ever-increasing role in modern architecture, forming part of the design and aesthetics of a building. In particular, natural daylight offers many advantages: It is verified to have a positive physiological impact, it increases our wellbeing and thus enhances our productivity. In Germany, sufficient daylight for natural lighting is available between 8 am and 5 pm on 85 % of all days. For optimal daylight integration into architectural structures, specially developed constructional elements are required combining both technical and aesthetic aspects....

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Daylight systems-4

alwitra kerbs are made of white impact-resistant "window quality" extruded polyvinyl chloride profiles. A special feature is the cellular system created by ribs that are formed already during the extrusion process of the profiles. This sophisticated technology gives you several advantages: • The cellular system itself ensures outstanding thermal insulation -without any additional "fillings". • When welding the corners, welding also includes the ribs. This results in a very large welded area providing high stability of the corners as well as continuous "thermal insulation", in particular, in the...

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Daylight systems-5

Technical data Kerbs of all types Construction: Fire class: cellular system made of window-qua- white, through pigmentation lity extruded impact-resistant polyvinyl combination with alwitra rooflight Thermal properties: The kerb 1600 is 16 cm high, no taper- ing. This means a vertical inner wall, with the light opening size being the same as the roof opening size. Ensur- Light opening size = roof ing maximum daylight intake with a opening size modern design. • Tapering 00 mm • Vertical inner wall classic rooflights. This means an Light opening size = roof opening inclined inner wall, with the...

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Daylight systems-6

Factory-fitted EVALON® or EVALASTIC® collar alwitra kerbs - as part of the alwitra flat roof system - can be supplied with a factory-fitted EVALON® or EVALASTIC® collar. This means that alwitra kerbs are already completely watertight and, after having been screwed to the substrate, need only to be welded to the installed waterproofing membrane on site. Technical data: Material: cut-to-size EVALON® or EVALASTIC® waterproofing membranes and preformed details, fully bonded to the kerbs over the entire height Thickness: 1.5 mm Absolutely no need for labour and time consuming detail work Colour: all...

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Daylight systems-7

alwitra rooflights As standard, alwitra rooflights are available in single-shell, double-shell, triple-shell or multi-shell versions with additional thermal insulation properties.The thermally insulating version provides optimum thermal protection as well as outstanding lighting of the room through efficient light dispersion and low light loss. alwitra rooflights are equipped with a anti-vandal screw system. Acrylic glass rooflight 2S (U value: 2.68 [W/m²K]) The double-shell version consists of two domed extruded polymethyl methacrylate shells (PMMA). Acrylic glass is a highly transparent, impact-proof...

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Daylight systems-8

1 Standard configuration is PMMA opal. Other configurations (opal / transparent) and material assemblies (PMMA / PC / PC Heatstop) are available on request. 2 Other sizes on request Bold = stock sizes - = not available

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Daylight systems-9

Opening and ventilation systems for alwitra rooflights Rooflights can also be used for room ventilation, as a natural smoke vent with geometric cross-section or for providing access to the roof. For all types of opening, in general, a vent frame is required where all necessary parts are included and prefitted. For available standard configurations and combinations please refer to our current price list. Further configuration versions on request. Manual opening (manual telescopic spindle) This is the most simple way of opening. The manual telescopic spindle is hooked to the brackets at the kerb...

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Daylight systems-10

Advantages: • natural lighting combined with preventive fire protection • suitable for daily ventilation • electronic monitoring of all important functional circuits • low installation costs • easy operation • maintenance friendly • emergency power supply up to 72 hours • available with lifting mechanism for roof hatch function (depending on the size) • various setting options via supplied software alwitra natural smoke vents for stairwells: reliable and safe. The electronically controlled smoke vent system, along with its lighting and daily ventilation function, provides a geometric smoke extraction...

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Daylight systems-11

Natural smoke extraction in stairwells Motor opener, 24 V Lift 500 mm Smoke detector Power supply 220 V / 50 Hz Control unit At a glance! Critical data – 24 hours a day: If the green LED is on, Release button (upper floor) Ventilation switch you can be certain that: • mains, battery • motor connection • signal lines are ready and fully operational. Also in the case of power failure: The emergency power supply system will ensure operational availability up to 72 hours. Release button (ground floor) Release buttons are available in the following colours: orange / red / yellow / blue / grey illustrative...

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Daylight systems-12

alwitra DayLuxe window The high-quality flat roof alwitra DayLuxe window is another component of the alwitra daylight system. Instead of the standard vent frame, it features a high-performance multi-cell frame with a laminated safety glass pane (HR++). In combination with an alwitra kerb and an alwitra rooflight, you get a flat roof window, absolutely suitable for living spaces, with optimum characteristics: • Compatible with all alwitra rooflights • Compatible with all alwitra kerbs • Thermal insulation (U value: < 1.00 [W/m²K] or better) • Airborne sound insulation Rw = 40 dB (for 1S) • Fall-through...

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Archived catalogs

  1. price-list-2013

    61  Pages

  2. Price List 2012

    70  Pages

  3. EVALON®

    8  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.