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.
One of the reasons for the continued popularity of asphalt shingles, despite other more efficient materials, is price. You can buy asphalt shingles from $1.15 to $1.75 per square foot, depending on the region you live in and the brand name of the shingles. Concrete tiles cost $5.00 to $6.50 per square foot. Installation is a part of these roofing costs.