Andeh

Once a year peak summer could just blast it all out with a pressure washer to hard mud? Love it! Looks brilliant. Can you post up the links?

Cherry picker?

There must be a few structure in the freehold contract? Is that being abided by? Is there not a freehold or leasehold adjudication or ombudsman?

We didn't fully spec the electrics, and the electrician utterly buggered us as a captive audience. Plan plan plan.

Forget it, you'll soon drop the shower head and had a few more to it!

Insulate any hot run pipes, especially if hot water circulating!

Looks too shallow IMO. I'm not an expert though.

Poverty end of the spectrum here... 150mm full full, still a wonderfully warm home and at £150 a month incl daily washing machine and dish washer... What's not to like!!

Rent it whilst you carry out the work... Vacate it once finish! Tidy up as you go along..... 😁

Logic being most tile adhesive has a degree of flex, as does grout... As long as the substrate is solid with no movement, any minor minor crackage is likely to be absorbed, or will show in grout (so regrout) or worse worse case... Would pop a tile(!?).. Would it? The physics of a cemfloor type floor moving enough to damage tiles doesn't line up in my mind?

No, builder was utterly confident without it. Same with our en suites, albeit it a different tiler did our family bathroom and put it in. We had the cemfloor down for a good few months before tiling though.

I'd be angling it to join the plastic below rodding point. For the sake of an extra corner bend, easier and less risky imo. IANAL Though...

We have 45sqm of tiles on of Chem floor, used for 12 months.... Touch wood no issues.

Just to help OP, context is import. You're asking a forum biased at the highest of high end Insulated homes. Expections are therefore also biased. 150mm PIR is very good, 100mm was the norm several years ago, and even less a few years before that.... Once upon a time 0.30 was deemed fine! You would benefit strongly if you can get an extra inch or two of insulation, 50mm odd of PIR probably gets you into 'it'll work fine' territory, but you will need to accept you're loosing a couple quid a day worth of efficiency on a cold days...so maybe £100 - 200 a year worth of losses vs force fitting extra insulation? Buikding houses still all comes down to compromise! Have you considered cemfloor, or other thinner screed setups? To give you an extra inch or so? Can you loose an inch with a door threshold or shallow ramp?

We didn't, as I was away, and we have a noticable cold bridge there!

Definitely check it all the same! At least they won't be total cowboys,octopus are a good brand.

Has it always done this? RF signal can be funny at times. I had an IR extender (mammox pyramid IR extender or something) to enable me to change TV channel from a different room... Sky box split between two rooms via HDMI SPLITTER. turned out, when it was in it blocked my house mates vauxhall astra remote locking. Assumed the pyramid's IR was so much stronger it drowned out the remotes. I wonder if you have any stronger IR in the house blocking things?

We're probably around 3 as an annual COP (I'll check shortly). 51 degree DHW and two tanks a day on a bad day is always going to come with a hit!

Imagine if any other product took this approach, you can only have your car repaired at the garage you bought it off or else no warranty... Or boiler install.... Price gouging would be rampant. An approved supplier fitting a material they are approved to fit should maintain a warranty from the approving supplier. Buying a product that can only be worked on by a single, price gouging entity, would mean I look at other products. That's a material fact that should be up shared up front. Time to read through the small price, and then look to recover costs via money claim depending on what's said.

Have you looked into the warranty terms and conditions, to see what it actually stipulates? Or ask them to show you where? That does seem heavy handed.

Had an "issue" with our Samsung ASHP where I had set an 'on time' for hot water at 6am to hit a temperature with an hour duration assuming it would then turn off, but instead I then had to also set a manual 'off' time. Maybe there is something equiv with yours?

Can you post up pics please?

Interesting! What caused the dud UFH?

I doubt it, get the work done and meet in the middle.... And both walk away. Building house is hard enough, without added emotions seeking compensation for this complicated shitty occurrences. If he does try to charge for it, use the cost of scaffolding etc to cancel it out.

So sorry OP,you have my sympathies! Every building has these moments, and If you've made it this far..... You've done well! I wonder if they could simply trim the entire top 5 inches off all the way round the roof light, then wrap a single layer of zone round each one over the top of the rest below. Almost like a sweat band going all the way round? Hinge then a req through it per single zinc layer?