We doorwin has revolutionized the energy efficient windows by various components such as the glass, frame and hardware what make our window energy efficient.
Those components that provide substantial protection from heat gain and heat loss and reduce the energy consumed by the whole building are considered energy efficient.
Double glazed windows
An ideal energy efficient solution is to reduce all forms of heat transfer. Double glazing is considered the vehicle for all high-performance windows, in climates hot, cold and mixed. When combined with low-e glass on at least one pane and argon gas in between, double glazing provides the best thermal performance. U-values as low as 1.8 are possible, compared with about 5 in the of a single-glazed clear window.
The narrowest air gap used in double glazing is 6 mm but this should be avoided unless there is no alternative. The use of wider gaps (10-20 mm) will improve the U-value and the configuration of 5mm glass +12air+5mm glass is the most popular with inexpensive price. In addition to double glazed windows, we also offer triple glass option to reach extraordinary great in performance.
Our double glazing glass and triple glazing glass have passed SGCC (Safety Glazing Certification Council )and IGCC ( Insulating Glass Certification Council) which means they are qualified for the Safety standard for safety glazing used in buildings and safety performance specifications.
Low-e coated glass
Low-e (low emissivity ) glass uses a transparent coating to minimize the amount of heat passing through the glass while still allowing light through. This almost invisible coating reduces the U-value of the glass which measures how well a window prevents non solar heat loss or gain. The lower the U-value, the greater a window's resistance to heat flow and the better its insulating value. And it is important to design on which side of the glass to coat Low E, different side Low E coated may effect opposite. There are professional engineers in our company who will design on which side of the glass to coat the Low E, and definitely will explain how it will work to reduce the heat transfer.
Window frames
To complement the glazing system, a frame with a low U-value assists in reducing the whole window U-value. Frames that use timber, composite aluminium/timber, or thermal break aluminium,design, outperform standard aluminium windows by providing advanced thermal performance. Timber is the preferred choice to be window frame because of its terrible heat transfer efficient. Our wood cladding aluminium frame is the upgraded frame of timber frame and thermal break aluminium. While timber performs better on energy efficient and cost less, but exterior timber side may rot rot, warp, peel or rust when they are installed in adverse weather condition, in normal weather condition , exterior timber side will last 10-15 year's without any damage based on our timber treat technique. I'd like to show you Wood cladding aluminium frame , timber part thickness options we offer 68mm(2.67in) 78mm(3.07in), with aluminium cladding thickness is 20mm(0.79in) , this type frame brings elegant wood type looking interior and strong structure exterior. If you'd like a window with wood cladding aluminium looking but with less cost, I recommend another type wood cladding aluminium which configured with thinner wood timber interior and thicker thermal break aluminium exterior.
Wood cladding aluminium frame is way heavy than thermal break aluminium frame, and with heavy double or triple glazing glass, the windows requires the hardware strictly. We selected Roto Brand and Truth Brand hardware to ensure the window can be open and close smoothly with less strength.
Good Weather Seals
Hot and cool air can escape or enter a home through gaps and cracks around sashes and frames. Our good window seals are essential to improving energy efficient performance with compression seals, as fitted to whatever casement and awning windows, tended to have superior air infiltration performance.
For all of these above, Our windows performed extraordinary great in air tightness , moisture tightness, wind pressure and U factor , these specifications have been already tested and certified by CE certificate, NAMI certificate is also on the process. So the quality of our windows is not guaranteed by us but also by National Inspection Institute.
Beside the quality of the windows we also offer individualized design like :
(Optional choice of produce technology and out looking)
Open type : H or V
Seamless welding(Nicer looking)
Non finger joint wood(Nicer looking, but expensive)
Wood color
Glass Color
Glass decoration
Powder coating (which is strong)
Grid option( Colonial, Diamond, Prairie, perimeter)
Screen option
Build-in shutter
Even now you have some ideas of our windows ,bu t maybe you still feel a little scary to purchasing overseas. You may worried about the package. Well, purchase huge value customized products like windows is really a brave idea. Our company are very precious of these buyers and will take care of the windows like our own house windows. We designed three layers of the package for each window:
adhesive protective film,
hardboard,
stretchable plastic wrap,
For one batch of windows, there will be durable Non-fumigation plywood crate to pack the windows , which provides good protection and prevents the windows and doors from being damaged during long shipping time. And no customers have complaint on glass breakage so far.
Company Information
Doorwin Group is a major Chinese manufacturer of windows and doors. Over the past decades, we have exported our products globally to include North America, Europe, and Australia. Our products are suitable for commercial and residential projects, with product lines at several price points to satisfy the needs of both premium and value markets. Our industry-leading customization services provides options to meet even the most stringent requirements.
With a factory area of 20,000m2 and production capacity of 100,000m2/year, Doorwin Group has the scale to ensure timely delivery and the flexibility to reduce manufacturing lead times to as little as 18 days.
We are dedicated to the pursuit of energy efficient, eco-friendly and cost-effective products and through our research and development have made great strides in the performance categories of thermal-insulation, structural strength, weatherproofing, sound-insulation, and condensation resistance. Our products are designed to exceed North American NFRC code requirements. Independent testing by Intertek USA confirms that our products perform exceptionally well in all climate zones.
Our unique philosophy is centered on creating the most reliable and durable products for each performance class. This approach mitigates the inconvenience and cost of product failure to reduce total cost of ownership and maximize value to our clients. We take no shortcuts and we pledge to not compromise on the quality of our products.
Welcome to Doorwin Group. Experience the next level in service, support, quality and performance.
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Ada Wu
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