Self Cleaning Windows? Simply Too Good to Be Real!
Just what is self cleaning glass?
Self cleansing glass is glass which has been very finely covered with titanium dioxide, an inorganic pigment that is used in a selection of products consisting of sunscreen (reflects UV rays), toothpaste and as a whitener in white paint.
To put it just, it uses a dual-action process where natural dust is broken down by daylight and also is then cleaned away by rain, hence making it less complicated to keep clean.
Much more regarding just how it works
Self cleansing glass works by two procedures:
Photo-catalysis - the activity of sunlight into the surface of the glass consumes away dust. It does this by soaking up the UV part of sunlight which then damages down any kind of natural material on the surface area of the glass.
Hydrophilicity - rather of creating beads that diminish the home window in rivulets leaving streaks, the rain expands as a constant sheet cleaning the glass tidy.
Does it constantly work?
Jeff Howell, checking out the benefits and drawbacks of self cleansing glass in The Telegraph (June 27th 2005) ended that self cleaning glass is "self-cleaning as long as it doesn't obtain unclean."
Whilst self cleaning glass certainly executed well in lab evaluates the same problems seldom apply in genuine life. If rainfall is eyelashing versus one side of the residence, the various other will definitely continue to be reasonably dry, Този уеб сайт and as a result unwashed.
Jeff interviewed one supplier of self cleansing glass who admitted that their product is only "self-cleaning" as long as it is frequently hosed down with water, or even after that it works best when the water moves gradually down an incline - such as on a conservatory roofing system - rather than directly down, as on regular upright windows.
So ... no easy answer to your window cleaning troubles I'm terrified! Best stick with the experts.
Whilst self cleaning glass undoubtedly performed well in laboratory tests the exact same conditions rarely use in actual life. How typically do upstairs windows, protected by lintels, arcs and eaves obtain really soaked by rain? If rainfall is eyelashing versus one side of the house, the various other will undoubtedly stay relatively completely dry as well as a result unwashed.