QWERTY is the name of a keyboard layout, originally designed to  prevent jams that occurred when the keys clashed together.   They're most commonly used on personal compu â¦ ters and mobile phones.    QWERTY are the first six letters from left to right on the top  letter row of your keyboard.
The average salary for mechanical insulation estimator jobs is $64,000. Average mechanical insulation estimator salaries can vary greatly due to company, location, industry, experience and benefits.
1 A rough estimate for hiring someone to blow insulation into a flat roof, cathedral ceiling or wall cavities is $2-$3.50 a square foot, or $1,000-$3,500 for filling 1,000 square feet of empty wall or roof space. A complete insulation job on a typical family home can run $2,000-$10,000 or more, but averages $2,500-$5,500, depending on materials, the regional climate and the local economy.