This is caused by the squeegee being angled incorrectly forcing the water under the rubber blade out into the dry area of the glass or from solution being pushed up into the top edge of the window.
Although there is a slight difference between our original calculation and Teslaâs new oneâlast fall we built in a cost of $6,500, Teslaâs current cost for a Powerwall as part of a Solar Roof installation is $7,000.
Based on our experience and survey of contractors from different regions of continental US, the average price per square of Asphalt Shingles is in the range of $250-300. This price is to install a new 30-year dimensional (architectural) shingles on a walkable (3-6 roof pitch) ranch-type house.