I've debated painting the interior walls of the house with
metalized paint (RF shield). The downside, of course, is
that it makes wireless transmissions into/outof the house
impractical (that's the whole point!).
We don't use cell phones so there's no real cost/loss to us.
And, if it inconveniences guests... <shrug> [My house,
My rules! :> ]
The big bummer, though, is dealing with resale; who would
want to buy a house in which they couldn't use a cell phone?
[I suspect this would be the sort of thing you would HAVE
to disclose at time of sale -- or leave yourself ripe for
Scraping the paint *off* would be tedious/difficult -- at best.
But, the "primer for repainting old plaster" thread inspired
a possible solution: what if I put up <generic> wall paper
and then painted OVER that? (assuming it doesn't look like
sh*t) I'll have the interior that I want, cosmetically
(pick a color that I like!), the electrical shielding that
I want *and*, when I want to "undo" it, just strip the
wallpaper and repaint/paper the wall beneath! (?)
Of course, stripping wallpaper typically takes advantage of
the fact that you can soak the wallpaper and the water will
permeate the paper and loosen the glue. I don't think that would
work if the paper had been painted -- esp if a metalized paint!
(I would have to investigate in more detail)
Does this reasoning make sense? I.e., that stripping would
be almost as hard as trying to remove the metalized paint
from the walls, directly?? I've not hung paper in 30+ years so...
My goal is primarily to reduce radiations from *within*; so *my*
emissions aren't easily snooped from outside. As such, I can
limit my radiated power to only what is needed for reliable
coverage of the interior.
Someone standing *at* one of my windows trying to sniff signal
is going to be pretty obvious! OTOH, someone sitting in a
neighboring home can (without shielding) sniff without worry!
Likewise, I want to be able to minimize the attack surface for
injection and DoS expoits; someone pushing "big signal" from
outside the home would be relatively easy to note and in violation
of FCC rules. While that's not a guarantee, it's a deterrent.
(I am technically capable of jamming cell phone communications;
the threat of fines and/or imprisonment is a strong disincentive
for doing so! :> )
Eventually, I'll have a solution that doesn't rely on RF but
I don't want to address that, now.
On Wednesday, December 30, 2015 at 12:00:03 PM UTC-5, Don Y wrote:
dont just be concerned with rf, they can aim a tinly laser beam at your homes window and listen in to your converstions, attach transmitters to phone lines etc.
and do realize if they want your info bd enough you cant stop them.
are you radicliazed//////.
Yeah, as the Russians did with US (and other) embassy...
Sure. And how many of your neighbors will CASUALLY do those
things? OTOH, how many would eavesdrop (or steal) on your
WiFi, given the COTS technology to do so?
Of course! Ditto with possessions. OTOH, most folks are easily
discouraged *if* you raise the bar high enough.
One of my neighbors came knocking on the door one Sunday a few
days after he moved in. He'd locked himself out of the house
(he, wife, and infant son) and wanted to borrow <whatever>
to break in. Locksmiths wouldn't come until the (college)
ball game was over, despite the double charges for Sunday
house call! And, he wasn't keen on standing outside in the
hot Sun waiting for them to mosey on over (infant son)!
I'd never been on his property before. Never "examined" the
house. After a few minutes, I returned home, fetched a
screwdriver, removed *one* screw from one of the windows
in his kitchen, took the window *out* (notice I've not
broken anything!) and asked him if he wanted to climb
through or if *I* should? The look he gave me was one of,
"OhMiGosh! This guy lives NEXT TO ME! Will he be a THREAT
or an ASSET??"
[We turned out to be great friends]
My point being that a single screw is what kept people
out of that home before -- and since. OTOH, leave the front
door unlocked or the garage door open and you can almost
*bet* someone will take advantage!
Yes, low-e glass. But, I suspect this won't prove to be a problem
mainly due to sight-lines, etc.
We, for example, have no glass on the south side of the house
so neighbors there have no "opportunities". The north side has
two small windows, both of which are covered 24/7/365 with
window treatments. The east and west exposures have neighbors
Anyone standing/parked close enough to the house (war-driving)
would be easily noticed and have very limited opportunity to
*do* anything or *snoop* anything before becoming conspicuous.
People too cheap to strip first paint wallpaper all the time. And people
manage to get the wallpaper off. I believe you have to go over it with
Don. www.donwiss.com (e-mail link at home page bottom).
But paint with metallic particles (alumina grit?) is less permeable
to water *and* "tougher" on sand paper.
Perhaps I should just paper a small drywall scrap, paint it and see
what it's like, firsthand...
On Tuesday, December 29, 2015 at 9:28:56 PM UTC-5, Don Y wrote:
why does th OP want to block rf signals from their home?
cell providers have network extenders for use, in places like the op is trying to create.
antenna goes outside pointed at cell tower, indoors the signals are repeated....''the papers metallic particles will probably not be a good ground.
google faraday shields for more info to help do this shielding successfully
Because I use a wireless communication system for "occupants"
to interact with the automation system controlling the home.
"Snooping" on those communications reveals what we are saying,
what we are asking the house to do *for* us, how the house is
responding, what it is telling us, what we are doing, where we
are physically located, etc.
Yes, and as we don't have/use cell phones, we have no interest in
bringing RF *into* the house.
I can get the house *shielded* easily enough. What I can't do is
to accomplish this in a way that is (affordably) REVERSIBLE.
The idea of paint over wallpaper seemed like a way that I could
"peel" the metallic layer (paint) off the walls -- instead of
having to try to SCRAPE metallized paint off plaster!
I wonder if there is something that comes in rolls that's
pre-glued. Think electrical tape but a couple feet wide or so.
It would be sticky but not too sticky. I'm thinking of
Goldilocks and the Three Bears.
Using Opera's mail client: http://www.opera.com/mail/
Think: aluminum foil. Now, think about what it would look like,
applied (i.e., forget the shiny surface but, instead, think about
how you could get it on without introducing myriad wrinkles and
If you're making an industrial enclosure, no big deal. If you have
to LIVE in it (and look at it!), then cosmetics starts to become
a driving force.
Some of the metalized paints *look* like you've lined the walls with
"smooth" foil. You could then paint over them (or even wallpaper?).
But, you're still stuck with sorting out how to rid yourself of
the metal/foil later on! :-/
I think this is one of those things that I'm just going to have
to evaluate first-hand. I suspect even the vendors of such
products haven't considered how to get *rid* of them afterwards!
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