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Hello. 3 years ago we had 2 new upvc bay windows fitted by an established company in the London area. The ground floor window has sealant between the sill and the brickwork, the first floor window does not. We have damp on the first floor interior wall below the window but not on the ground floor wall below its bay window. There are large gaps between the first floor bay window sill and brickwork and 2 packing strips can be seen from street level on both sides of the bay window. (cant get photos to upload to site). I have several questions and will appreciate any thoughts. 1. Am I correct in thinking that this is how water is getting in? 2. Is it normal to seal gaps under a ground floor window sill but not a first floor sill? 3. Should I ask the installers to come back and seal the gaps? Regards DaveAF

All, today's torrential downpours have resulted in a leak in my living room roof. When the OSB boards were originally put down, it started to rain before we could get them covered. The roofer did his best to dry the boards out and put down the GRP roof. He did warn us it was not ideal, but we were desperate to move in, so I told him to just go for it. 3 years on and the top coat is flaking badly and the roof has started to leak. I intend to go up tomorrow morning, clean up the roof and put down some repair product that my brother swears by. Has anyone got any advice on how to clean up the flaking topcoat as it is really tough stuff and cannot simply be pulled away? Thanks in advance, Narinder

This week the OH and I removed a bath and refitted a shower room for my (aging) parents. They didnt want to spend a huge amount and we ended up getting it all from B&Q - the Cooke and Lewis Exuberance Rectangular shower encosure with single sliding door and the Cooke and Lewis Lagan shower tray. The quality was quite good for the price, IMO, and we followed the instructions (pictures only) to the letter. We also followed @Nickfromwales's advice and used Sikaflex EBT to create an upstand when we positioned the tray against the wall. However, when we used the shower to test it out, there was a load of water coming from the base of the enclosure on the side wall nearest the shower, where it joins the wall. When constructed, the glass panels were slid into a metal (aluminium maybe) trim which in turn, slid into the section which we had glued and screwed to the wall. the base of the glass panels fixed into another trim but these also had a plastic thingy (technical term for the non-plumbers) which we think seals the glass into the trim so no water can get in. But not at the side panel. As the shower tray has a completely flat bit for the enclosure to sit on, we were a bit concerned about water seeping under the enclosure as we hadnt been told to stick it down with sealant. So I used some Sikaflex and applied a thin bead all around the base, sealing the bottom of the enclosure to the tray, on the inside. The water seems to be getting through the part where the glass panel fits into the first metal trim. It does seems strange that it did not need sealant or a plastic/rubber seal. But I wonder if I actually created the problem here. Maybe the design is for the water to get into that area but then drain out the bottom - although what would stop it draining out the outside, I dont know. In the end some clear CT1 in a bead all the way up that join seems to have slowed the water escaping but not completely. At least it was just seeping slowly out rather than pouring out. And that was with the shower head pointing straight at it, which isnt going to happen under normal use. Was it me or the design? The bit where we think the water is getting through is that black line where the glass was slid into the metal trim, which then slid into the wall trim, already fixed to the wall.You can see the thin bead of sikaflex that I applied all round the base.