Register to reply

Insulation blocks mobile phone signals

by CWatters
Tags: blocks, insulation, mobile, phone, signals
Share this thread:
May24-14, 05:59 AM
P: 3,268
Modern foil covered foam insulation and coated window glass unfortunately blocks mobile phone signals rather well. I'm aware of solutions that use broadband and wifi to tunnel through it but this seems like a problem waiting for a better solution.

Are there any good/cheap alternatives to metal foil coating that reflect heat as well but don't block radio waves? Perhaps someone has a neat design for a slot antenna that could be cut into the foil before being applied to the foam?
Phys.Org News Partner Physics news on
New complex oxides could advance memory devices
Nature's designs inspire research into new light-based technologies
UCI team is first to capture motion of single molecule in real time
Simon Bridge
May24-14, 07:46 AM
Sci Advisor
HW Helper
Simon Bridge's Avatar
P: 13,110
You can always just leave the radiant barrier insulation off - using thicker regular insulation.

I heard of people using a small scale repeater for the local tower, so you have an antenna on your roof and one in the house... but I can't seem to find a reference.

Everyone I know just redirects their cell to their landline.

Thinks: have you tried mylar?
May24-14, 01:09 PM
Sci Advisor
PF Gold
UltrafastPED's Avatar
P: 1,911
Here is a discussion of this very topic - with a link to an informative article, along with potential solutions:

Cell phone repeaters? This company provides some discussion, and you can see typical costs:

May26-14, 09:20 AM
P: 3,268
Insulation blocks mobile phone signals

Thanks. I understand the problem (Faraday cage) and most of the potential solutions. Mobile phone repeaters are illegal in the UK. They will reluctantly provide Femtocells for contract customers, not sure about pay-as-you-go customers. I don't think any of the phone operators provide call diversion for free.

I was really looking to see of there was anything the manufacturers of rigid insulation could do to fix the problem at source. The possibility of using alternative coatings to aluminium such as Mylar is what I had in mind. Thanks.
May26-14, 10:05 AM
P: 3,268

Recently, some reflective thermal insulation manufacturers have switched to a metalized polyethylene facing. The long-term efficiency and durability of such facings are still undetermined.
What's needed is a non-metal with low emissivity.

Register to reply

Related Discussions
Innovate old mobile phone Electrical Engineering 13
Dial up with a mobile phone Computing & Technology 1
Strange mobile phone Electrical Engineering 2
Mobile phone Computing & Technology 11
Factors affecting mobile phone signals General Physics 1