If you have more than two layers of shingles you should strip them. If not use 1x3 or 2x4 strapping and run it horizontally (eve to eve) every 16 inches and then put your metal on that.
The average labor cost to install a metal roof depends on many different things. Some of them include the location in the country, the pitch of the roof, and the availability of labor.
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Depending on your location, if the metal roof is going to be more durable and sturdier than your existing roof, you will need a permit. Also if the metal roof is going to heavier than your existing roof, it will require a permit.
there is no way
Metal roof is very expensive and not easy to install.
A metal tin roof has many advantages over an asphalt roof. Metal roofs last longer than other roofs, do not deteriorate as quickly, and can withstand more extreme temperature changes. Tin roofs are also less work to install, and can even lower your insurance costs.
Which metal are you asking about??=Lead coated copper should last over 300 years=
A metal roof will last longer than an asphalt roof. The cost range for a metal roof is about $350.00 to $650.00 per square of metal. However, each tile of asphalt roof would cost around $20 plus installation.
1x12 for metal or rolled roofing, 3x12 for shingles.
The clue is " OVER THE TOP OF" metal sinks windows metal roof flashing metal beams The only possible answer is OVER THE TOP OF WINDOWS
This depends on what type of roof panels you are trying to install. In general, you need to remove all of the nails and panels from the section that your are replacing. You then place roofing felt on the roof, making sure to nail it down. The panels go over the felt. Install them from left to right. http://www.ehow.com/how-does_4778280_installing-tin-roof-panels.html
No