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.
Smooth and Textured Tile (Tesla's equivalent to asphalt tile) would need to cost less than $73,500, installed (or about $2,450 per 100 square feet); Slate Tile would need to cost less than $98,500 (or about $3,300 per 100 square feet). Bottom line: For sure, $70,000 to $100,000 is a lot to spend on a roof.