There is a federal law that says thay you can put your antenna outside up to 12 feet high above your roof, regardless of what your homeowners association or building codes or deed restrictions say.
And moving it outside and up will tremendously improve your reception.
...if the thermal envelope for the house is the attic floor. If the house was designed to use foam insulation from the start, it's possible that the thermal envelope will be at the roof deck.
But I agree that spraying foam under the roof deck when the house already has fiberglass insulation on the attic floor is a really bad idea.
-- "Tell me what I should do, Annie." "Stay. Here. Forever." - Life On Mars
"12 feet high above your roof" - Really? I think not.
A: For antennas designed to receive analog signals, such as TVBS, a requirement that an antenna be located where reception would be impossible or substantially degraded is prohibited by the rule. However, a regulation requiring that antennas be placed where they are not visible from the street would be permissible if this placement does not prevent reception of an acceptable quality signal or impose unreasonable expense or delay. For example, if installing an antenna in the rear of the house costs significantly more than installation on the side of the house, then such a requirement would be prohibited. If, however, installation in the rear of the house does not impose unreasonable expense or delay or preclude reception of an acceptable quality signal, then the restriction is permissible and the viewer must comply.
Different people have had different results. A friend who had foil radiant barrier installed saw a negative impact on his TV signal. We do not plan on moving our antenna, and we refuse to take the risk of negatively affecting either or TV or cell signals.
ami
Thanks to everyone for the recommendations. We've decided to get both the spray-on radiant barrier and insulation added to the attic floor. We'll see how well that works in cooling down our attic before we proceed with the ductwork. We're leaning towards wrapping the ducts in batts instead of spray-on foam so that we have access to clean the ducts.
ami
Somehow the attributions got mixed up. I'm unclear on what you're saying. In some sense, almost ALL attic insulation is "below the roof deck." I have found that the addition of a (non-sealing) radiant barrier is an excellent addition to the system.
The reason homeowner associations try to keep them inside is they're unsightly.
I clicked on a few. The first one that directly addressed the issue indicated BETTER TV reception after the radiant barrier was installed.
I should probably clarify that what I advocate is radiant barriers rather than what some might think of as "insulation." You DO need to be careful about where the vapor barrier is, and not create a system that's susceptible to mold. I don't think foam is a good idea unless it's somehow made permeable to moisture.
Be sure to look at this data, too.
A 30 year roof will last about 12 years on an insulated deck.
No, a 30 year roof will last about 12 years when you insulate the the roof deck from the attic.
Try this on for size: Q: What types of antennas are covered by the rule?
A: The rule applies to the following types of antennas:
(1) A "dish" antenna that is one meter (39.37") or less in diameter (or any size dish if located in Alaska) and is designed to receive direct broadcast satellite service, including direct-to-home satellite service, or to receive or transmit fixed wireless signals via satellite.
(2) An antenna that is one meter or less in diameter or diagonal measurement and is designed to receive video programming services via broadband radio service (wireless cable) or to receive or transmit fixed wireless signals other than via satellite.
(3) An antenna that is designed to receive local television broadcast signals. Masts higher than 12 feet above the roofline may be subject to local permitting requirements.
In addition, antennas covered by the rule may be mounted on "masts" to reach the height needed to receive or transmit an acceptable quality signal (e.g. maintain line-of-sight contact with the transmitter or view the satellite). Masts higher than 12 feet above the roofline may be subject to local permitting requirements for safety purposes. Further, masts that extend beyond an exclusive use area may not be covered by this rule.
Like I said, a lot of variables. My point is metallic radiant barriers can sometimes be a problem. YMMV.
Cite?
My electric bill used to average $220/month on the level payment plan. In the summer my AC would run constantly from 10:00 in the morning until 8:00 in the evening without cutting off once. My AC wouldn’t hold the temperature in the house (set at 74 in the summer 68/winter). I had an open cell spray foam put in my attic in 2019 and my level payment amount is now at $152/month and my AC not only holds the temp I set it at, even in the hottest or coldest days the unit will cut on/off in contrast to running all day. Open cell is well worth the investment. My attic used to read as high as 130 in the summer, now it doesn’t get more than 85 degrees in the summer and 65 in the winter.
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