- Location of the property
- The type of insulation within the loft
- The number of TV points the TV Aerial is feeding
So, there a few factors to take in to consideration before installing a TV aerial in a loft. Looking at where the house is, in respect to where the TV transmitter is, if it is visible, even if its 20 or more miles away, and yes sometimes they can be seen from that far of, then the chances are that the signal will be strong enough to be picked up from within the loft. Fitting TV Aerials in a loft in Preston should in most cases will be OK, since it isn't that far for the signal from Winter Hill to travel to get to the antenna. If though, the house sits in a valley and by looking around, you see other houses that have externally mounted aerials, but on very tall masts, the chances of getting a good enough signal in the loft are very slim indeed.
In either case, unless it is obvious that there is going to be no chance , it is always best practice to connect up the aerial to a meter and test before installing, whether there is going to be a good enough signal first.
Most homes will not be insulated with the kind that will block signal. However, to clarify, I am not talking about the loft insulation that one would lay down on the floor of the loft. The kind I'm talking about is the foam boards that have an aluminium foil outer cover that are used to line the roof itself. With this kind of insulation covering the inside of the roof, there is no way on earth that a TV signal will be penetrating that.
Number of TV Points
So, the thing with loft aerials is that by fitting them in lofts rather than externally, you can lose up to 50% of the available signal, and in any case there is always going to be a reduction of signal went fitting an aerial in the loft. So, depending on the quality of signal and strength of it will in some cases restrict the number of aerial points it can feed.
A way around this would be to install some kind of amplified signal booster to evenly spit the signal and even boost it, so that it can be distributed around the home to the TV points, delivering a signal both strong enough and clean enough to be able to watch uninterrupted television.
As previously mentioned, carrying out an aerial installation in a loft for most properties in & around the Preston area, should be fine. Unless it has the wrong kind of insulation or the house is positioned behind some geographical obstacle such as trees or a hill, then the will be enough of a digital signal to be received by a loft aerial. For more info on this subject feel free to give me a call.