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.
Depending on the type of your roof, choice of shingles, geographic location, and the contractor or weekend warrior you choose to hire, your total average cost for a composition shingles roof could range from $2.75 to $7.50 per square foot installed. â Thatâs anywhere from $275 to $750 per square.