DOORWIN 2021usa nrfc certified 2 panel glass wood crank windows by Doorwin on Alibaba
$128.00 $225.00
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Product Description
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.
usa nrfc certified 2 panel glass wood crank 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 case 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 affect 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 aluminum/timber, or thermal break aluminum, design, outperform standard aluminum 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 aluminum frame is the upgraded frame of timber frame and thermal break aluminum. While timber performs better on energy efficient and cost less, but exterior timber side may rot, warp, peel or rust when they are installed in adverse weather condition, in normal weather condition, exterior timber side will last 10-15 years without any damage based on our timber treat technique. I’d like to show you Wood cladding aluminum frame, timber part thickness options we offer 68mm(2.67in) 78mm(3.07in), with aluminum 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 aluminum looking but with less cost, I recommend another type wood cladding aluminum which configured with thinner wood timber interior and thicker thermal break aluminum exterior.
Wood cladding aluminum frame is way heavy than thermal break aluminum 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, but maybe you still feel a little scary to purchasing overseas. You may worry 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
Why Choose Us
Folding Patio Door
Tilt & Turn Windows
The tilt-turn window, originating in Europe and popularized by passive-house and net-zero construction, is a window type with the unique characteristic of being both an inward-swing casement style window as well as a top opening hopper style window. The clever hinge and intuitive handle mechanism is specially designed to allow seamless switching between the modes via the orientation of the handle. Depending on the handle position, it can operate as a fixed window (handle in the 6 o'clock position), inward casement window (handle in the 9 o'clock position) or hopper window (handle in the 12 o'clock position). This window style combines the security, air-tightness, egress requirements and ease of cleaning of an inswing casement with the all-weather ventilation convenience of a hopper.
This product represents the latest evolution of our tilt-turn window featuring a solid oak frame and sash and exterior aluminum cladding. Solid wood is the preferred choice for windows due to its low thermal conductivity, strength to weight ratio, ease of finishing and appearance. Wood window can last generations, as evidenced by the many historic homes all over the world. That said, wood windows do require regular maintenance and can be susceptible to pests such as termites. Our wood treatment process produces a more durable wood that our internal testing has shown can withstand unprotected, direct exposure to the elements for 10-15 years before failure and can last a lifetime if properly maintained. However, for those that desire the ultimate in window technology, our top of the line wood windows feature exterior aluminum cladding alleviating all concerns with wood and the concomitant design considerations to mitigate them.
Competitive with the best in the industry, Doorwin Tilt-turn windows feature 4 sealing layers; a continuous rubber seal around the sash and three inner seals. Along with our pressure-equalized cavity drainage design, this product ensures outstanding performance even under the harshest weather.
Our energy efficient integrated glazing units (IGU) feature triple-pane glass, warm-edge spacers, argon gas fill, Low-E coatings and fully tempered glass. Different IGUs are available to meet the needs of different climates.
Doorwin is positioned to offer the finest value in quality tilt-turn windows. We seek to make durable, energy efficient and beautiful products accessible to all budgets. We strive to provide the best customer service experience with a dedicated design and engineering team for custom projects and a talented sales team that responds quickly to inquiries. We back up our products with a 10 year warranty for your peace of mind. Contact a Doorwin sales representative to experience what sets us apart from the rest.
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