How Far From A Metal Roof Should A Hexbeam Be

Twenty four inches is a common spacing of furring strips for a metal roof.

How far from a metal roof should a hexbeam be.

Metal is tough and durable but it s not impervious to all hazards. 27 should be fine for 40m. Correctly measure the spacing of furring strips for a metal roof to further decrease condensation. 2 need a lot of structure mods to support antanna base.

I m not too sure about your vertical question. Planning my first stationary antenna for 2 6 meters. 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. If your metal roof has a slant it may act as a reflector and enhance signals in certain directions.

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. A metal roof can withstand decades of abuse from extreme weather like high winds heavy snow hail storms and even wildfires. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. A grounded metal roof is a more attractive target for lightning than one that is floating at atmospheric potential.

Double the hill and valley width since this is the amount that the panel will overlap the one next to it on each side. The 20 000 plus ampere current of a lightning bolt discharging to ground. 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. A typical metal roof overhang may be 2 to 4 inches or even less.

Metal roofing has a 140 mph wind rating meaning it can withstand wind gusts up to 140 miles per hour. I m not exactly sure about the hex beam top to bottom distance perhaps 10 and your tower must be 25 to 30 tall which would leave approximately a 20 distance between the metal shed roof highest point and the wire elements of the antenna. However if most of your antenna is high and over the ground i don t think you need worry. 3 amount of disposable to do roof mods.

So how far away do i have to keep the antenna. Hopefully there will be others along shortly to offer you more helpful advice. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. The sheet metal in this type of roofing can be penetrated by heavy falling limbs or dented by.

I can t put the antenna on the roof because 1 the roof panels aren t bonded for a ground plane.