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Dome Rooflight Polycarbonate - Mardome Trade

Quantity

All prices are subject to 20% vat

This Item is Made To Order

Maximum quantity available reached.

£20 Nationwide Delivery Charge

Thermally-efficient glass

Warranty

Reduced risk of condensation

Easy Fit

made to measure

Key Features

  • Free UK mainland delivery
  • Fast delivery
  • Great U values
  • Sleek, contemporary inside and out
  • Available in Single Double, Triple Skins and Quad skins
  • Many sizes available from 600x750mm up to 1800x2400mm
  • Various dome finishes available
  • Option to purchase Multiwall PVC kerb

Click Tabs Below To Reveal More Information

Dome Rooflight Polycarbonate are available in sizes a range of sizes and glazing types.

This is the installation guideline. You can download a PDF at the base of this page. Product data sheet provided at the bottom too.

Size Range

Available in standard sizes from 450x450mm up to 2400x1800mm in 150mm increments. If your size is not listed then please contact us to discuss your options.

Measuring Guide for fitting to builders upstand

Measure external builders upstand

Acceptable tolerance:

 Fixed / unvented domes = dome size +20/-20mm

 Opening / vented domes = dome size +40/-20mm

As an example, if fitting on a builder’s upstand, the width should be 75mm and height of the upstand should be 150mm high. If you purchase a 900mm by 900mm from the drop down menu on our website your external timber size as shown in red above (Measure here) should be 900mm by 900mm.

To use an example, if attaching on a builder’s upstand, the width should be 75mm and height of the upstand should be 150mm high. If you purchase a 900mm by 900mm then the external timber size as shown in red above should be 900mm by 900mm. There is a drop-down feature on our website to aid your selection of these. In this example your external timber size as shown in red above (Measure here) should be 900mm by 900mm.

Measuring Guide for domes with PVC kerb

Measure internal roof opening

Acceptable tolerance = dome size +20/-30mm

To use an example, if buying with a 150mm or 300mm high upstand and you purchase a 900mm by 900mm then your structural opening size as shown in red above should be 900mm by 900mm. There is a drop-down feature on our website to aid your selection of these. In this example your structural opening size as shown in red above (Measure here) should be 900mm by 900mm.

Glazing details:

*Centre pane U-value is a measure of the thermal efficiency of the glazing type.

#Ud-value is a measure of the thermal efficiency of the whole rooflight (calculated in accordance with NARM Technical Document NTD2).

~Glass glazing option is not available with the access hatch option and limits other opening options depending on size

Part L Building Regulations require a U-value of at least 2.2W/m2K: Brett Martin Daylight Systems recommend the use of at least triple skin rooflights in all applications

Tint:

Polycarbonate rooflight light transmission properties are highlighted in the table underneath:

Clear - high visibility

Maximum light generation

Optimum clarity of vision and transparency of views and objects through the dome

Opal - diffused light and solar control

Maximum levels of diffused light generation joined with privacy

Restricts solar glare and subtracts solar heat gain

Impairs vision of optics and materials through the product

Patterned - privacy

Marries privacy with high levels of light processing

Less significant daylight

Repels sights of views and objects through the dome

Bronze - solar control

Minimises solar glare and heat gain

Offers a lower light transmission

Upstand:

Builders upstand (opening / vented)

Dome is supplied complete with uPVC frame that fixes to top of builders upstand and houses any opening / ventilation equipment

150mm uPVC

For mounting at roof surface level, providing 150mm of waterproofing height (exact kerb profile varies with specification)

300mm uPVC

For mounting typically below roof surface level, providing 300mm of height for insulation and waterproofing

Trickle Vents

2 manually operated hit and miss trickle vents providing combined 8400mm² equivalent area ventilation. Please note trickle vents cannot be supplied with 450mm by 450mm size.

WARRANTY

10 year manufacturer’s warranty.

Lead time for this product is 2-4 working days for most sizes. The transport company will deliver outside of the property. They are not insured to do this so you will need to ensure an appropriate person is designated and on site to offload the product out of the vehicle once the driver arrives.

Please Note lead time to Ireland will be longer than the standard lead time above.

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