References

Roofing Materials

303 sources in the library on roofing materials. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 8 of 8.

1. supplier figure RN-BCR1ZD

   Unilin Insulation (formerly Xtratherm)

   PIR roof board with composite foil facings both sides, 2400 x 1200 mm. Thicknesses 25, 30, 40, 50, 60, 70, 75, 80, 90, 100, 125 and 150 mm. Thermal conductivity 0.022 W/mK. Compressive strength CS(10Y) 140 kPa. Reaction to fire: Euroclass F. Covered by BBA 23/6997 (2026).

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2. supplier figure RN-4JG775

   VELUX Company Ltd

   VELUX centre-pivot and top-hung roof windows, glazing options quoted as whole-window Uw (not centre-pane Ug). Glazing 70 Comfort double glazed: Uw 1.3 W/(m2K), g-value 0.46, 35 dB sound insulation. Glazing 68 Better Comfort triple glazed: Uw 1.1 W/(m2K), g-value 0.49, 35 dB. Glazing 62 Comfort extra noise reduction triple glazed: Uw 0.92-0.96 W/(m2K), g-value 0.47, 42 dB. Suitable roof pitches 15-90 degrees for centre-pivot, top-operated and solar/electric versions; 15-65 degrees for the electric top-hung outward opening version and 15-55 degrees for the manual top-hung. All glazing includes rain noise reduction, safety laminated inner pane, toughened outer pane and a UV filter.

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3. supplier figure RN-0Z8QTL

   VELUX Company Ltd

   VELUX curved glass rooflight: Urc,ref300 of 0.55 W/(m2K), the whole rooflight including a 300mm reference upstand, declared for the fixed variant with three-layer glazing at 1.2 x 1.2m with a 300mm curb to EN 1873:2014+A1:2016, Arc,ref300 = 4.4 m2. The curved glass top sheds rainwater on roof pitches down to 0 degrees. Base unit double or triple insulating glass with laminated inner pane P4A; sound insulation 42 dB with triple glazing; burglary resistance class 2 as standard.

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4. supplier figure RN-42SD0Z

   VELUX Company Ltd

   VELUX dome with glazing, for roof pitches 0-15 degrees: U-value 0.80 W/(m2K) declared for the fixed anti-burglary variant with a 2-layer glazing unit, calculated at window size 1.2 x 1.2m with a 300mm curb to EN 1873:2014+A1:2016, A = 3.4 m2. Sound insulation 36 dB. Note this is the assembly figure including the upstand, not a centre-pane value.

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5. supplier figure RN-MJX4Y8

   VELUX Company Ltd

   VELUX flat glass rooflight: energy performance is quoted as Urc,ref300 of 0.60 W/(m2K), which is the whole rooflight including a 300mm reference upstand, not a centre-pane Ug and not a bare unit U-value. The declared figure is for the fixed variant with a three-layer glazing unit, at a window size of 1.2 x 1.2m with a 300mm curb, calculated to EN 1873:2014+A1:2016, with Arc,ref300 = 4.1 m2. Top unit is toughened glass, base unit a double or triple insulating glass unit with laminated inner pane to class P4A. Sound insulation up to 42 dB (curved variant, triple glazed). Supplied burglary resistant as standard to resistance class 2. VELUX recommends rooflight area of at least 10% of room floor area to meet EN 17037 (300 lux for 50% of the year over 50% of the room), rising to 15-20% where the window is overshadowed.

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6. supplier figure RN-E8DFE5

   VELUX Company Ltd

   VELUX sun tunnel for flat roofs, available only in 14 inch / 35cm diameter. Rigid version: recommended tunnel length 0.9m to 6m, with up to 98% daylight reflectivity from the super high reflective coating; the ZTR extension tunnel is recommended where the ceiling-to-roof distance exceeds 170cm, taking total length to 600cm. Flexible version: recommended tunnel length for a flat roof is 0.2m to 0.9m only. The integrated cover frame suits flat and profiled roof coverings up to 12cm high but not standing seam metal. Ventilation adapter (TWR 0K14 only) has a 10cm pipe connection.

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7. supplier figure RN-6HYJNY

   VELUX Company Ltd

   VELUX sun tunnel for pitched roofs. Rigid tunnel: 25cm and 35cm diameters, recommended tunnel length 0.9-6m, highly reflective coating giving up to 98% daylight reflectivity; extension tunnel ZTR is recommended where ceiling-to-roof distance exceeds 170cm, taking total length to 600cm. Flexible tunnel: 35cm diameter only, recommended length 1.5m, for use where a beam or other obstruction blocks a straight run. Integrated cover frame suits flat and profiled roof coverings up to 12cm high; not suitable for standing seam metal roofing. Optional low U-value kit ZTB. Ventilation adapter (TWR 0K14 only) has a 10cm pipe connection.

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8. supplier figure RN-UUO6RP

   Welsh Slate Ltd

   Cwt-y-Bugail Welsh Slate, quarried east of Blaenau Ffestiniog since 1840 from Ordovician beds, a dark blue-grey slate with occasional white veins, riven texture and distinctive relic bedding. Three thickness grades: Capital 5.5mm, County 7mm, Celtic 9mm. Core production sizes 500 x 250mm, 400 x 250mm and 300 x 200mm (note the 500 x 250mm core size, where Penrhyn and Ffestiniog use 500 x 300mm).

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9. supplier figure RN-393IQI

   Welsh Slate Ltd

   Ffestiniog Welsh Slate, a thin uniform slate with less texture than the nearby Cwt-y-Bugail quarry. Three thickness grades: Capital 5.5mm, County 7mm, Celtic 9mm. Core production sizes 500 x 300mm, 400 x 250mm and 300 x 200mm, with production possible in excess of 1 metre length.

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10. supplier figure RN-JZY712

    Welsh Slate Ltd

    Welsh Slate coverage, slates per m2 by nominal size and headlap. At 50mm lap: 600 x 350mm 10.2/m2, 600 x 300mm 11.9, 550 x 300mm 13.1, 500 x 300mm 14.6, 455 x 250mm 19.4, 400 x 250mm 22.4, 400 x 200mm 27.9, 350 x 200mm 32.5, 300 x 200mm 39.0. At 100mm lap the same sizes need 11.3, 13.1, 14.6, 16.4, 22.1, 26.1, 32.5, 39.0 and 46.5 slates per m2 respectively, so increasing lap from 50mm to 100mm adds roughly 10-20% to the slate count. The largest 600 x 350mm slate at a 150mm lap needs 12.5 slates/m2.

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11. supplier figure RN-DSY1KY

    Whitesales Ltd

    Whitesales bespoke aluminium lantern rooflight: spans from under 1m up to 7m unsupported, and larger with a supporting framework. Standard slope 30 degrees, with bespoke pitches available. Glazing options are polycarbonate multiwall or solid sheet, or single, double or triple glazed glass (clear, opal diffused or heat reflect polycarbonate); thickness and type are determined by the unit size and configuration. Installed on a site-formed upstand or a proprietary em.curb, terminated with glazed gable ends, hipped ends, wall abutments or open ends, with bays at equal centres as standard.

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12. supplier figure RN-Z59YXK

    Whitesales Ltd

    Whitesales em.curb proprietary rooflight upstands, compatible with single ply (bonded, welded or mechanically fixed), torch-on felt, hot melt, asphalt, GRP and liquid waterproofing systems. Options include 150 Splayed GRP for circular units with integral 10mm polyurethane foam insulation, and 150 Splayed uPVC in extruded white multi-chambered profile. Whitesales states that choosing a vertical kerb rather than a splayed one increases daylight transmission by up to 40%, and that kerb selection changes the overall thermal transmission and U-value of the rooflight, which is why an installed rooflight U-value must be quoted with its upstand.

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13. supplier figure RN-W1HJX5

    Whitesales Ltd

    Whitesales em.dome modular rooflight: over 140 sizes from 400 x 400mm to 1900 x 2900mm, in a range of shapes, profiles and glazing options, with many sizes ex stock for next day delivery if ordered before 2pm. Normally specified with proprietary em.curb upstands but can be installed on builder's curbs; curb adaptors are available where the dome replaces an existing rooflight. Compliant with HSG33 recommendations (the HSE guidance on health and safety in roof work).

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14. supplier figure RN-9LOCG0

    Whitesales Ltd

    Whitesales em.glaze flat glass electric opening rooflight, with single or tandem actuators that communicate with each other. Air tightness Class 4 at 60 Pa to EN 12207 / EN 1026 (note the opening version is rated at 60 Pa where the fixed Premium is rated at 300 Pa and higher). Thermal insulation 1.24 W/m2K with a uPVC 150mm vertical upstand, to EN/ISO 10077-1, EN/ISO 10077-2, EN67 and DS418. Non-fragile to CWCT Class 1 as standard. 15 stock sizes in 3-5 days, bespoke sizes in 5-8 weeks.

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15. supplier figure RN-19N6P5

    Whitesales Ltd

    Whitesales em.glaze flat glass Premium modular rooflight. Glazing is a 32mm hermetically sealed double glazed low-E argon-filled unit with a warm edge spacer and toughened outer pane; standard frit width 84mm. Two distinct U-figures are published and should not be conflated: thermal insulation of the rooflight installed on a uPVC 150mm vertical upstand is 1.24 W/m2K (to EN/ISO 10077-1, EN/ISO 10077-2, EN67, DS418), while the Ud-value of the complete glass unit tested vertically is 1.23 W/m2K. Recommended installation pitch on an em.curb or builder's upstand is 5 to 15 degrees. em.curb upstand options include ECO uPVC 150mm splayed or vertical, 300mm splayed and 350mm oversleeve splayed. Aluminium frame is thermally broken and fully welded, powder coated Anthracite Grey RAL 7016 as standard. 14 stock sizes on 3-5 day delivery.

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16. supplier figure RN-GWCJ05

    Whitesales Ltd

    Whitesales em.glaze flat glass Resi rooflight, glass-to-edge design, 11 stock sizes on 24 hour to 3-5 working day delivery, available fixed, manual opening or electric opening. Tested performance: air tightness Class 4 at 300 Pa to EN 12207 / EN 1026; thermal insulation 1.3 W/m2K when installed with a uPVC 150mm vertical upstand, calculated to EN/ISO 10077-1, EN/ISO 10077-2, EN67 and DS418. The site notes explicitly that this figure is a U-value for the installed rooflight and that Ud-values (glass unit) are quoted separately, which is the distinction that gets confused.

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17. supplier figure RN-Q1QVP9

    Whitesales Ltd

    Whitesales em.glaze linked glass rooflight: non-fragility tested to CWCT Class 2 as standard (the higher classification is Class 1, which the ray.lux and electric opening em.glaze carry), noting that the class depends on the glass specification chosen. Secure welded thermally broken glazing frame with self-supporting joints. Recommended installation pitch 5 to 15 degrees; steeper is generally acceptable subject to Whitesales technical advice. Available in bespoke sizes and glass specifications.

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18. supplier figure RN-RJW1E3

    Whitesales Ltd

    Whitesales em.glaze Skyvu aluminium roof lantern: internal rafters 38mm for slim sightlines, U-value from 1.3 W/m2K, supplied double glazed as standard with two glazing options. Designed to sit on a fully weathered timber upstand 150mm above the finished roof level and 100mm wide.

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19. supplier figure RN-TO4TR8

    Whitesales Ltd

    Whitesales em.tube tubular skylight, available for flat roofs (low profile UV protected polycarbonate dome) and for tile and slate pitched roofs (flat glass). Three tube diameters: 350mm, which fits between most conventional rafters and joists without trimming and suits very small rooms; 450mm for bathrooms, hallways, landings and corridors; 550mm for living areas, kitchens, large landings, corridors, offices and retail. Rigid tube extension pieces come in 625mm and 1250mm lengths and suit both the rigid and flexible tube systems. A passive rooflight ventilation system and a magnetic double glazed ceiling diffuser are included as standard. Guaranteed against defective design, materials or construction for ten years.

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20. supplier figure RN-PKZ8O6

    Whitesales Ltd

    Whitesales em.vault continuous barrel vault rooflight: spans up to 6m wide with unlimited length. Standard profile rise is one sixth of the width, with higher rises and bespoke profiles available on certain sizes. Glazed with 16mm multiwall polycarbonate in clear or opal diffused, or thermoformed glazing. Suitable over single ply, felt, hot-melt, asphalt, liquid, GRP and lead roofs. Deemed non-fragile in accordance with HSE guidance on health and safety in roof work.

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21. supplier figure RN-NJVVDJ

    Whitesales Ltd

    Whitesales multipane rooflight: maximum slope length 3.2m, beyond which the em.glaze monopitch is used instead. Can be installed at a 0 degree pitch although 5 degrees is recommended for water runoff. Panes are joined internally with aluminium T bars and white PVC cover fins and externally with black structural silicone joints; all visible external aluminium is polyester powder coated to a standard RAL colour. Single, double or triple glazed glass, with pane sizes varied to suit the design.

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22. supplier figure RN-D5QA8W

    Whitesales Ltd

    Whitesales pyramid rooflight: spans from under 1m up to 7m unsupported, larger with a supporting framework, self-supporting at large spans. Standard slope 30 degrees with bespoke pitches available. Glazing in polycarbonate multiwall or solid sheet, or single, double or triple glazed glass; clear, opal diffused and heat reflect polycarbonate options. Manufactured from proprietary aluminium extrusions and installed on a site-formed or em.curb upstand.

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23. supplier figure RN-73GSA0

    Whitesales Ltd

    Whitesales ray.lux modular glass rooflight in a uPVC frame, 14 stock sizes on next-day delivery, available fixed, manually opening or electrically opening, fitted to a builder's upstand or a thermally efficient proprietary uPVC upstand. Combined unit U-value 1.26 W/m2K (the whole rooflight, not the glass alone). Non-fragility tested to CWCT Class 1 as standard.

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