Windows and Facades


Discussion about windows, facades and all kind of glass enclosures

uPVC Windows and Doors

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LandVac by LandGlass – 100% fully tempered vacuum insulated glass

Thanks to the high vacuum interspace of LandVac, the outstanding feature in thermal insulation effectively reduces the cost on HVAC and energy consumption. In addition, the thin structure and prolonged useful life of the glass also help to save costs on transportation, installation, and replacement.

The surface stress of any position in LandVac tempered vacuum glass exceeds 90MPa, perfectly retaining the safety features of tempered glass against impact and wind pressure. It fully meets safety glass standards in stand-alone applications with no need for lamination.


Calculating STC

I have been looking for a formula to calculate the STC for a series of different window/glass combinations. In my situation, I have casement windows with 1/4" overall IG. I can insert a second pane of glass at 2" using the location of my internal screen track or at 6" where it would sit on the sill of the window. I have taken outside measurements with a professional microphone to get the frequency and loudness time series for overflight departing aircraft noise. I found that the curve reproduces jet backblast, with the loudest noise between 30Hz and 250Hz.

Trends in Glass Architecture

Green design, or the use of energy efficient and environmentally friendly products in design, has become a huge trend in the architectural community, and liberal use of glass is one of the signatures of this trend. Allowing natural daylight into the space using high performance glass cuts consumption of electricity and adds a cheery element to interior space.