Introducing the domed flat roof window
At Sterlingbuild, our range of domed flat glass windows have been created to offer a very high quality product for very good value for money. The domed flat roof window incorporates a roof dome in single skin (as standard), and a double glazed glass unit securely formed in a PVC frame.
By letting in natural daylight through your flat roof, you incorporate a real WOW factor into your home. This will add value to your property as well as reducing its carbon footprint.
Flat roof windows provide up to three times more daylight than equally sized vertical windows.
With a U-value as low as 0.64W/m2K why not upgrade your flat glass window dome to double, triple or even quadruple skin and save even more energy and even more on your bills.
The ECO upstand
Made from extruded PVCu, the ECO upstand is the most thermally efficient, environmentally friendly rooflight upstand yet. Built with a strong nine-walled cellular structure, this thermally broken upstand also has a groove built into the upstand to allow for a smooth plasterboard finish. The ECO upstand has an overall U-value of 0.92W/m2K. Pre-finished white internally, it gives a perfectly finished design suitable for any interior.
Thickness - 50mm
Height - 160mm
The ultimate sound insulation
Our domed flat glass windows provide excellent sound insulation from rain and hail which makes the domed flat glass window the ideal product for installation in practically any room. Sleep through the stormy nights or enjoy an evening of entertainment viewing in your living room. You will not be disturbed by the outer elements.
Roof domes offer a sound insulation level of 35 Rw dB.
What is the best skin thickness for you?
- Single skin - U-value: 0.95W/m2K
- Double skin - U-value: 0.82W/m2K
- Triple skin - U-value: 0.72W/m2K
The ECO upstand
The ECO upstand is the most thermally efficient, environmentally friendly rooflight upstand yet. Built with a strong nine-walled cellular structure, this thermally broken upstand also has a groove built into the upstand to allow for a smooth plasterboard finish. The ECO upstand has an overall U-value of 0.92W/m2K compared to the standard upstand that has a U-value of 2.2W/m2K
Thickness - 50mm
Height - 160mm
How secure are the roof domes?
Unique to our domed flat glass windows are the high-security screwbolts, supplied factory fitted as standard to all units. Once installed, the fixing cannot be removed using common tools. The screwbolt provides a high level of resistance to tampering or forced entry.
The fixing screw or bolt is sleeved within the body of the screwbolt which avoids pressure being exerted on the rooflight glazing as the fixing is tightened. This virtually eliminates the risk of stress fractures caused by over-tightening.
Keeping your rooms chilled
Even though you've chosen the fixed unit, you can have a controllable trickle vent built into two sides of the upstand or choose the 300mm high upstand with controllable rotating vents. The ventilation can provide 8000mm2 ventilation area which assists with Building Regulations compliance.
What is a warm roof construction?
Warm roof construction is the adding of insulation to the top of the roof deck which then allows for less heat loss. For any extension, Building Control are enforcing warm roof constructions, and the 300mm high upstand is ideal for any warm roof construction.
Half of the uptand is hidden in the insulated roof space and the other 150mm seen on the roof complies to building regulations.
When installed, the domed flat glass windows are expected to exceed the life of the roof covering and will not rust or be affected by atmospheric pollution. They are maintenance free once installed. The domes are guaranteed against the effects of defective design, materials or construction for 10 years, subject to certain conditions.
Dimensions shown is the roof opening size required.
|Glazing Feature||Double glazed|
|Hole In The Roof Size (W x L)||70 x 70cm|
|Opening Method||Wall switch|
|Size (W x L)||70 x 70cm|
|Skin Thickness||Triple skin|
|Type||Flat glass domed rooflight|
All Sterlingbuild orders have FREE standard delivery when your order is over £100 + VAT.
However next day delivery will carry a small next day delivery charge which will be shown in the final shopping basket
Unfortunately additional delivery charges will apply if you live in the Scottish Highlands and UK islands. These delivery charges are based on additional costs from our national couriers.
If additional shipping fees apply, a member of our team will contact you before processing your order to let you know.
We will do our very best to make sure your delivery arrives by the date required, however manufacturer availability and delivery schedules cannot always guarantee this.
Should your estimated delivery date differ from that displayed on our website, one of our team will inform you by email or telephoneView full Delivery Information