On 2020 09 13 by scott not an overstatement actually on a mechanically seamed metal roof the starter piece is fastened to the deck then the panels are crimped over the starter piece and each panel is then mechanically crimped.
Roof overhang length for gutters.
Too little can allow water to seep into rake or fascia boards.
Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.
Here phil explains how much overhang a roof should have at the gutter.
I note that was an easier job than yours because that building sports no gutters just a nice 24 roof overhang.
With us average electric price of 0 13 kwh you will be spending 7 25 per day if your system is running full 24 hours.
When a roofer advises against installing a gutter you should ask for specific reasons.
Do you have edge metal.
A typical metal roof overhang may be 2 to 4 inches or even less.
A typical 120 foot long roof edge with 6 12 overhangs and no gutters deicing will need about 291 feet of cable.
It ultimately depends on a couple things.
Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.
There is a thing called wicking that if on a low enough slope will run up the underside of roofing and possible go up enough to get behind facia so usually wi.
The edge of the shingles should hang over a roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed.
And what is the pitch.
That equals to 2 3kwh per hour or almost 56kwh per day of continuous operation.
Too much overhang and the shingles could blow off in high winds.