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In my experience!

Thanks for this. So just to be clear: the valley has a central ridge which is the highest point. There are then two lower ridges either side of the central ridge. Are you saying that the tops of the tile battens should be flush with these lower side ridges? Such that the tiles would sit evenly...

Yes, however, I need input from building experts. Are roofers idiots? Of course not. However, I think the advice I get here might be more detailed.

What do you mean "flush"? The valley tray has different ribbed parts. Do you mean that the ribs at the sides of the valley tray should be flush with the rafter tops? Can I have the height different on either side?

Since roofers seem to clock off at 2pm and are probably all in bed, and I need answers quite urgently, I'm posting this here. It is a building related issue anyway as touches on different factors. Hello, Where the roofs of my existing house and extension meet at the GRP ribbed valley tray, the...

Maybe, although a lead valley in this case would be higher on one side than the other and I don't want to be getting pointing done in future. And funnily enough, I can't do a great deal with your advice now short of ripping the lot off and starting again, so if anybody has any thoughts on how to...

Hello, Where the roofs of my existing house and extension meet at the GRP valley tray, the tiles on the existing roof seem to kick up a bit at the end so you can see a slight wavey effect when you view it from further back. Not nice and straight. This seems to boil down to the rafters on the...

100% I go with the micromanagement option to the max, but will start doing more myself in future. I absolutely dread to think how it will be in 10 or 20 years when all the old timers are gone.

Thanks for this. Yes, there is a temptation just to go back to that original plan. I think there is sufficient depth in the room, just, to basically lose the question mark, come further forward off the wall, and get a proper right angle. Then go through the wall in more of a straight line using...

Thanks for this, all makes sense. I did question the fall from the very start but he kept saying that he has done it to the standard height through the wall and has been adamant that this isn't the problem. There is a fall between the back of the toilet and where the waste pipe enters the wall...

Hi mate, Thanks for this. I actually posted before and after your post - does this additional information change anything for you? By the sounds of it, I'll need to get my builder on the case. Remove the whole soil pipe and connectors outside, remove the loo, remove the flexi pipe. Adjust...

Thanks for the replies, it has really helped... this has been doing my head in for a long while and it looks as though the loo can be ruled out.

I've just noticed this, which probably explains his use of flexi pipe through the wall. The end of the connector is at a slight angle as it approaches the wall... This might be addressed by turning the toilet slightly so that the right hand side will be a little bit more off the back wall. This...

I was thinking to replace the flexi pipe with solid. The second plumber who has looked at it told me that flexi pipe isn't supposed to be used through a wall. I assume the original plumber used it because he was struggling to make the toilet waste pipe connector line up with where the outside...

Hello, I had a new ensuite installed in a bedroom approaching two years ago. Just a toilet and sink. I paid a plumber to do the whole job. Toilet and sink wastes go through the outside cavity wall and into the soil pipe serving the adjoining bathroom (old cast iron soil pipe was replaced at the...

Righto, thanks!

BC will probably want to see an engineer's report. If I do need such an opinion what kind of person am I looking for, preferably not too expensive and willing to just have a look and do quick letter or email?

The roof designer did know there is a door. The same one on site is shown on the plan of my extension which they used to design the roof. What sort of engineer do i need to engage to have a look at this and advise if it is safe or not? Likely cost?

So will the air flow in your case be over the ply boards you've put in? Presumably can't get under them if the roof insulation is touching the ply.

No I was not expecting them to design my extension. That was done by the technician who prepared the plans and who called for a trussed roof structure. He didn't design the roof; he, along with several builders I spoke to, said the roofing company would design it and they would follow...