0
0

Hi,
Has anyone had solar roof panels put on their BISF roof?

  • You must to post comments
0
0

Solar panels on the back of a BISF house (vent pipe removed or lowered).

Image Upload
  • You must to post comments
0
0

Here’s a few more images Cranners to back Ed’s response :0)

Image Upload
  • You must to post comments
0
0

Thank you for the swift response and handy information. I live in Essex and will be making further enquiries ,so I will keep you posted.

  • Ed (Senior Member)

    Let us know how it goes, lots of BISF houses now have solar but we haven't heard here about how it's done as far as I know. You may have more success with an installer that does commercial as well as residential installs as a BISF roof is more like a commercial building roof such as a warehouse or barn than a typical house roof. I take it your house does not have its original asbestos roof covering any more?

    Ed

    • Guest
    • 3 years ago

    That's right the house that I bought over 23 years ago did not have asbestos covering, it has a large sized tile covering which appears to be the norm where I live. Yesterday we had canvassers advertising solar panels linked to a government backed scheme, hence my enquiry on this very helpful site.

  • Ed (Senior Member)

    I would be very wary of any cold caller trying to sell solar! The industry has become rather like the double glazing industry was with some companies trying their luck with massively inflated prices (usually the cold caller type) because not everyone knows what the going rate is. People are getting 4 kW systems made up of sixteen 250 W panels for £5000 - £6000 these days, or 4 kW of twelve 330 W panels for £6500 - £7000, but on the forums you still hear of people being quoted over £10 000! There also seems to be a correlation between being overcharged and getting a bad job (as you'd expect from an unscrupulous company) so I'd definitely seek out a reputable local installer rather than waiting for someone to come to you!

    I should have said that typically twelve panels will fit on the front which is fine if the front of your house faces roughly south. If the back faces south and you still have the bathroom vent pipe then eleven should fit, but you can have the pipe lowered or removed to fit the extra panel (I've removed it in the bathroom so the bit on the roof is now redundant). If your house faces roughly east/west many people recommend having half on one side and half on the other to catch both the morning and afternoon sun and thereby spread your generation over more of the day. It would also mean you could have eight of the cheaper panels on each side to get the full 4 kW without using the more expensive panels.

    The Money Saving Expert forum is very good for solar I think (current prices etc): http://forums.moneysavingexpert.com/forumdisplay.php?f=100

    Ed

  • You must to post comments
0
0

Hi, good question as I’ve looked into this. A few years ago I was told that the structure of the roof meant it was not suitable for solar PV. Since then solar has been installed on many BISF houses, so this was obviously not true. Check out Google Street View for examples, here are three next to each other in Shirehampton, Bristol (there are lots more close by): https://www.google.co.uk/maps/@51.4930978,-2.6850057,3a,75y,324.25h,91.76t/data=!3m4!1e1!3m2!1sCaMjmiXmx3hg8U18Mnoozw!2e0

Please note that a BISF roof only has room for 12 normal sized solar panels, giving 3 kW using the most commonly used 250 W panels. However higher efficiency panels of up to 330 W are available from the likes of BenQ which would enable you to get the full 4 kW that is the max. typically allowed on a domestic roof, from only 12 panels. The higher efficiency panels are more expensive of course, but your electricity generation will be higher.

Ed

  • You must to post comments
Showing 4 results
Your Answer
Guest Author
Post as a guest by filling out the fields below or if you already have an account.
Name*
E-mail*
Website
Body*
Image Upload
Upload your image here
File Name Size
There are currently no files uploaded.
Maximum file size 1MB.
Supported file formats: gif jpeg jpg png