Complete and separate roofing systems, such as standing-seam metal roof panel systems, that are designed to transmit the roof loads directly to the building's structural system and that do not rely on existing roofs and roof coverings for support, shall not require the removal of existing roof coverings.3.

The signal transmits a much shorter distance due to higher frequency and shorter wavelengths than previous technology.

Each water meter is supposed to connect to Wifi to transmit the water usage data to the third party that sends the actual bills to the tenants. 

Don't worry Hep 3 since this is transmitted by bodily fluids.Would look for a property with a stream or running water, if you're doing therapy.

@Anthony WeeksTo answer your first question.. you can transmit anyway you want.. 

In WI, a property owner is allowed to hire a non-licensed property manager, but the activities of that non-licensed individual are limited.This is what the non-licensed individual CAN do:a) Show rental unitsb) Provide informationc) Collect rentsd) Transmit documents between the owner and rentersThis is what the non-licensed individual CANNOT do:a) Negotiate lease termsb) Sign leases on behalf of the property ownerSource:  WI Realtors Association

The systems use wifi or cell signal to transmit the data. 

Here are just some examples:Loan collection reportsAll telephone collections must be recorded and kept on file, a monitoring program and training must be in place.Toll free numbers, payment books or EFT arrangements made, notices of changes of payment or address at 90 days, active accounts with contact information are confidential requiring security measures, accounting software must be verified compliant, there must be a loan resolution program in place dictating how and when complaints are transmitted, issues addressed within the required time frame, offers of any modification noted such as allowing a few more days to pay without penalty is a modification, must be recorded and portfolio servicing records must be on file in good form for examination, I could go on.....There is the law and there are matters absent of requirements or exemptions and there is then reality, you're right, third party servicers are not required for small lenders, compliance with servicing requirements are.

Any hard surface flooring will still transmit noise/sound.

Other experts have concluded that an attack on the system for transmitting power from generation to end consumers would have devastating consequences."