to help visualise some of the following photos, this diagram shows the aproximate position, and the direction in which I was facing when taking the lettered pictures, click for a larger version.

picture B the front of the house, showing where the half roof meets full roof.

picture C moving round the house, looking now straight on, you can just see the bat roost at the half roof on the left, the full roof in the middle, and the end of the house and the garage on the right.

picture D Moving further round the house, looking back at the double garage and end of the house, showing the old bat roost, which is still occasionaly used.

At the back of the house, at the half roof end, you can just about see the flat roof of the garage on the left, although it does look odd as next door's roof is directly behind it.

I've swung round a bit with the camera, same stance, but now looking at the very corner of the house, at the rear of the bat roost at the half roofed end.

This diagram is looking FROM the roost end (half-roofed end) of the house, in section, towards the garage end.

This plan of the house shows aproximate measurements, the construction of the internal loft space, and the bat areas (shaded blue).

This diagram is looking FROM the garage end of the house TOWARDS the bat roost, and shows the construction of the roost behind the pan tiles, I left out the rest of the loft so as not to clutter the diagram, the next one shows the WHOLE loft in section.

Drawn from the same direction as the diagram above (FROM the garage TOWARDS the roost) it shows the wishbone structure of the roofing joists, the location of the loft room, the apex crawl space for the bats and also the inhabited section of the loft room ceiling used by the bats.

this image, also taken from the garage end towards the roost end, shows the internal of the loft room.

This is a close-up of the far end of the loft room, showing the sealed-off apex crawl space for the bats, who also roost in the insulation lagging behind the blue ceiling panels.

picture A This image, from the same direction again, is taken on the chimney side of the loft room, looking towards the end wall.

picture H again from the same direction, on the other side of the loft room, looking towards the bat roost.

picture E Taken looking TOWARDS the garage this time, showing the "old" bat roost, not much used any more, but we still sealed it in to create a secure bat roost with a channel which leads up to the apex crawl space to allow bats to crawl from one roost to the other if they wish to do so.

picture G I have now walked along the joists to the space behind the bat roost (behind the boards on the right of the pic), and am looking BACK towards the garage end, you can see the outside of the loft room and one of the (sealed up) doors that used to go into it.

picture I I've now turned around again, looking towards the end of the house, and also at the back of the roost, as you can see, we sealed in the roost to make it secure for the bats permanently, non-chemically treated boards, odourless rubber sealant between them, and odourless expanding foam in bigger spaces at the top.

a close-up of the top of the bat roost, showing as mentioned above, the expanding foam that seals in the house side of the bat roost.

a close-up of the panels showing the odourless rubber sealant between them and the wood strip at the top to secure the top of the boards, wood was used wherever possible and cut as tight as possible to minimise the use of such sealant to minimise any possible risk to the bats.

picture F This is back in the loft room, looking at the other side of that sealed door you saw above, as the door, when it used to open, is half in the loft space and half in the bat space, we had to decomission it to keep the bats area completely secure from the human area. It is THIS door that would make an ideal and easily accesible spot for drilling through to insert a webcam into the roost, as you can see we haven't - but we would be happy for researchers to do so if they are looking for an oppurtunity.