How Far From A Metal Roof Should A Hexbeam Be

So how far away do i have to keep the antenna.

How far from a metal roof should a hexbeam be. Correctly measure the spacing of furring strips for a metal roof to further decrease condensation. Metal roofing has a 140 mph wind rating meaning it can withstand wind gusts up to 140 miles per hour. A typical metal roof overhang may be 2 to 4 inches or even less. To determine how far apart to set rafters measure the width of the metal panel and then the width of the first hill and valley of the panel.

The sheet metal in this type of roofing can be penetrated by heavy falling limbs or dented by. If your metal roof has a slant it may act as a reflector and enhance signals in certain directions. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. A metal roof can withstand decades of abuse from extreme weather like high winds heavy snow hail storms and even wildfires.

Metal is tough and durable but it s not impervious to all hazards. 2 need a lot of structure mods to support antanna base. Twenty four inches is a common spacing of furring strips for a metal roof. Because the metal panels run unhindered from the top to the bottom of the roof not only are there no horizontal seams but in total the roof has far fewer seams.

The 20 000 plus ampere current of a lightning bolt discharging to ground. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. I can t put the antenna on the roof because 1 the roof panels aren t bonded for a ground plane. I m not too sure about your vertical question.

Hopefully there will be others along shortly to offer you more helpful advice. Planning my first stationary antenna for 2 6 meters. The base station will be in my metal garage. 3 amount of disposable to do roof mods.

Double the hill and valley width since this is the amount that the panel will overlap the one next to it on each side. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. However if most of your antenna is high and over the ground i don t think you need worry.

A grounded metal roof is a more attractive target for lightning than one that is floating at atmospheric potential.