We bought our first house this past summer. It’s a BISF. We want to mount out tv above the fireplace. It has the old fashioned gas fire, we don’t use it but it does work. We will eventually have it removed & have a modern electric fire installed. I know the walls are different & obviously it’s not a brick fireplace so we aren’t sure how to do it safely. We obviously don’t want to do it wrong & risk a massive tv falling on our son or the dog! Can someone please advise if it can be done & how? Have you mounted yours above the fireplace? Any help much appreciated.
Hi Gemlou, thank you for providing the postcode, it really does help.
Having Just checked the location on Google Streetview, I can report that your house isn't a BISF house.
I know that may come as a bit of a shock, and you may even think I must have lost my marbles for suggesting such a thing, especially as everyone in the area probably refer to their houses as BISF houses, which is actually a true statement. But hiding amongst those BISF houses, are a number of other houses that appear very, very similar, but not quite the same.
What you have there is a Riley construction built and manufactured in the 1940's by Riley Constructional Systems, Cawood Wharton & Co. Ltd.
I must admit I'm quite excited to see these properties, because only around 200 were ever built in the U.K, compared to over 36,000 BISF Houses.
The Riley house is also a steel framed construction, and it too was constructed with render on lathe to the lower elevation. Whilst the BISF house has corrugated steel upper panels, the Riley house has pressed aluminium panels fitted to the upper storey, but in a slightly different way.
The steel frame structure is also quite different from that of a BISF house, despite doing the same job.
I've posted an image of one of the nearby BISF houses below.
Note the large, deep window and the side flank wall coming off the gable wall. Also notice the near 50/50 split between the surface area of the upper steel cladding and the render below, all around the house.
Now look at the Riley house, the steel cladding / render coverage, is more like 60/40. The ground floor front elevation windows is much shallower, and the window itself is usually split in the middle by a vertical column. There's also no flank wall, and the Riley house appears to have a slightly steeper roof pitch than the BISF House.
I will try to write a Riley House blog post in the coming days, which I will link to the forum. It should provide you with additional information about these houses, but for the moment, the main points to know are:-
They are not defective.
You will probably need to inform your insurance company.
For insurance purposes, the walls are still non-combustible Prefabricated.
If the house is privately owned, and you paid for a full structural survey, as opposed to a simple valuation survey, you may have cause for redress.
I'll need to research the internal wall construction in order to address your TV query.
Before I sign off for this evening, here's a couple of original Riley House images you might like to see.