Air movement in your attic should not pose a problem.
Grounding antenna in attic.
Here are some photos of my roof top antenna with a grounding wire in the attic.
This antenna has all the reception power of an outdoor antenna but features a curved metal frame of reflectors that are designed for fitting easily into smaller attic spaces.
The coax cable itself can build up a static electric charge and in order to properly dissipate that charge an antenna discharge unit or grounding block can be used again check you local code rules.
An alternative is a pipe clamp which is heavy duty and made of steel with serrated adapters.
Most people use a galvanized steel ground strap such as this one.
The layer of plywood would tend to block those.
Clearstream 4v hdtv antenna.
It might not but there is going to be a whole bunch of electrical wiring in the attic as well for the lightning to follow.
Now it s time to ground your tv antenna s coax cable.
Exterior antennas must have their mounting rod grounded to provide electric discharge in the event of a lightning strike or static accumulation from other causes.
There are very specific requirements for grounding an antenna both via mast ground and a shield ground.
Check to ensure that the vent tube is firmly grounded before connecting the wire.
It eliminates noise caused by static discharges from the antenna through the receiver.
To bond a grounding wire to the antenna mast you can use either a ground strap or pipe clamp.
Neither apply to an antenna in the attic.
The mounting rod is insulated from any of the active reception parts.
Grounding a tv antenna isn t just for safety.
An example is the 90628 ground pipe clamp by morris products.
The copper wire at the base of the antenna mast attaches to the copper vent tube that runs to the roof through the attic in a 55 year old house.