Curtain Wall

How to choose glass types for building glass walls and roofs

Building Glass Performance with the perfect quality of manufacture and performance of the product, glazed external walls are used to maximise natural light within rooms, further reducing the running costs of these highly energy-efficient homes.

Low U-values of insulated glass

Excellent thermal insulation was also part of the performance. The low U-values delivered by our insulated glass ensured impressive low energy performance, which helped the development achieve the Code for Sustainable Homes standard. We exported many containers of the glass roof in recent years. I think our skylight price is competitive as importing cost is not too much. We know the retail skylight price may be ten times compared with our quotation in the retail market.

skylight glass

Our glass rooflight competitive in low U value (Triple glazed U value 0.8 even Quad glazed 0.58). Established in 2000, we exported large quantity glass products in the past 18 years. Our direction is to focus on branded glass products, be a Strategic Partner with Pilkington, and mainly supply building glass to famous real estate companies in China. As building glass quantity is huge but requirement strictly, we can’t get approval from them unless top quality.

What is reflective Glass

We also provide reflective glass for commercial and residential buildings.

Coated reflective (including heat reflective glass, low-e glass (Low-E), conductive film glass, etc.)
Reflective glass, also known as reflective glass. Coated glass is to coat one or more layers of metal, alloy or metal compound film on the surface of the glass to change the optical properties of the glass to meet certain specific requirements.

Heat-reflective glass is generally coated with one or more films composed of metals such as chromium, titanium or stainless steel or their compounds on the surface of the glass so that the product is rich in color, has an appropriate transmittance for visible light, and has a higher resistance to infrared reflectance, it has a high absorption rate of ultraviolet rays, so it is also called solar control glass, which is mainly used in construction and glass curtain walls;

Low-E glass (Low-E) is a thin film system composed of multiple layers of silver, copper, tin and other metals or their compounds coated on the surface of the glass. The product has high transmittance to visible light and high reflectivity to infrared. It has good heat insulation performance and is mainly used in construction, automobiles, ships, etc. Due to the poor film strength, it is generally used as a hollow glass. The heat passing through the glass is bidirectional; that is, heat can be transferred from indoor to outdoor and vice versa, it is carried out simultaneously. It is only a problem of poor heat transfer. In winter, the indoor temperature is higher than the outdoor temperature, and insulation is required.

building glass

In summer, the indoor temperature is lower than the outdoor temperature, and glass must be insulated. Low-E glass can keep heat and heat insulation. The visible light transmittance of Low-E glass ranges from theoretically 0%-95% (it isn’t easy to achieve with 6mm white glass), and the visible light transmittance represents indoor lighting. The outdoor reflectance is about 10%-30%, and the outdoor reflectance is the visible light reflectance, which represents the intensity of reflection or the degree of dazzling.

Two current production methods of Low-E glass

Online high-temperature pyrolysis deposition methods, such as PPG’s Surgate200, Ford’s Sunglas H. R”P”. These products, are completed during the float glass cooling process. Liquid metal or metal powder is sprayed directly onto the surface of the hot glass. As the glass cools, the metal film layer becomes a part of the glass.
The main advantage of the offline vacuum sputtering method is that the “U” value of the “Low-E” hollow glass produced by sputtering is better than that of the pyrolysis product. Still, its disadvantage is that the silver oxide film layer is very fragile.