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.
Cost. On average, dimensional shingles run around $3-5 per square foot installed, or about 20% more than 3-tab shingles. Designer shingles average $4-$6 per square foot installed. Please note that these are general averages, and do not include tear off of an existing roof.