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MONO/DOUBLE PITCH ROOFLIGHTS
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Description: Modular factory glazed panel system.
Type: mono/double pitch rooflights set flush into pitched natural slate roof using conservation
detail/onto upstand on flat roof / into metal profile roof.
Manufacturer: VITRAL, Unit 2, 83 High Street, Linton, CB21 4JT:
Tel: 01223 499000
Fax: 01223 499001
e-mail: vitral-uk@vitral.co.uk
Quality control of component manufacture: system to be manufactured to ISO 9001:2000
Product reference: VRS stainless steel composite system
Frame width: Sightlines between fixed &/or opening profiles to be 48mm or less.
Glazing details: Double glazed low-e argon filled insulating glass units, laminated inner pane and
toughened outer as required to resist maintenance and impact loadings and for the properties below:
Reflective metal oxide coating applied off-line (delete line if using tint or clear glass)
 Light Transmittance
LT: 0.50
(green tint is 0.65, clear glass is 0.76)
 Energy Transmittance TET: 0.25
(green tint is 0.41, clear glass is 0.61)
Thermal transmittance: Complete rooflight system U-value (combined frame including all opening vent
framing and glass and perimeter junctions) to be less than 1.6 and proven for the specific rooflight using
SAP approved software and to comply with Part L of the Building Regulations October 2010. This must
include all opening vent framing. Cold bridges (such as those on patent glazing carrier rails) must be
avoided.
Air permeability: Assembly airtight (including vents) to 3m3/h/m2 @ 50 Pascals in accordance with
(ATTMA) Air Tightness Testing and Measurement Association best practice recommendation index for
school buildings, offices & dwellings. When tested, natural ventilation openings should be closed but not
sealed to provide a realistic measurement of the actual leakage.
Water permeability: 100% Watertight in sloped orientation (including vents) to 750 Pascals and with
EN12208 Class E750 rating.
Verification of Performance: Rooflight to meet the requirements of EN14351-1:2006 with declaration of
conformity and accompanied by a CE Label to prove complete installation has been tested for
watertightness, thermal transmittance, air permeability and factory production control.
Ventilation: 20 No. full length opening vents to the rooflight for natural daily ventilation. Supply and fit to
each opening panel a Window Master chain/linear actuator with sufficient lifting capacity for the panel.
Vent design: Vents to be flush in-line with the glazing. For conservation detailing there should be no
visible difference in framing between a fixed panel and an opening vent.
Controls: Supply Window Master control panels including rain sensor, thermostat and manual key switch
over-ride with links for BMS.
Wiring supply and commissioning of controls, by others.
Rooflight Installation: To be carried out by a trained and approved installer. Contact VITRAL UK Ltd Tel:
01223 499000, Fax: 01223 499001
Support structure: Rooflight panels to be fitted to the structural frame which is by others. All continuous
structural supports at the head, cill and verge, shaped & aligned to suit the pitch of the glazing to be
provided & fixed by the main contractor.
VITRAL A/S, Lyfa Parken, Måløv Byvej 229, DK-2760 Måløv, Denmark, +45 47 18 01 00, E-mail: info@vitral.dk, www.vitral.dk
VITRAL Ltd, Unit 2, 83 High Street, Linton, CB21 4JT, +44 12 23 49 90 00, E-mail: vitral-uk@vitral.co.uk, ww.vitral.co.uk
VITRAL Norway, +47 48 02 99 99, E-mail: info@vitral.no, www.vitral.no
VITRAL Germany, Chilehaus, Fischertwiete 2, D-20095 Hamburg, +49 40 32 00 54 84, E-mail: info@vitral.de, www.vitral.de
VITRAL UAB, Pramonės 8, LT-94102 Klaipėda, LEZ, Lithuania, +370 46 43 28 12, E-mail: info@vitral.lt, www.vitral.lt