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All you need is a certificate. This should do it

More of the first side done (will need a tower to finish the last few pieces) and have started the opposite side today.

+1 The MBC guys are working away on my roof as I type (Sunday). The atrocious weather of the last few weeks has put them behind but they haven't stopped once. Working in the howling wind and pouring rain, 7am to 7pm every day. I really can't fault their work ethic and the quality so far seems very good, they've had a few problems with the frame design but they don't seem to let it worry them. Brendan and his brother in particular are bordering on super human. Watching them makes me feel old, fat and unfit

A combination of width and height issues. Mostly width. The worst being a large height error of nearly 60mm. They're going to have to cut a glulam lintel to fix that one. Ecohaus only ask for a 10mm tollerance so that one would have more than a slight issue! Ive now been round every window and noted the window number and opening dimensions (as per the schedule) and written onto the smartply with a sharpie marker.

Yes, I'm putting a radial circuit in for electric rads as a fail safe. Im minded to put the UFH pipe in too as you are doing as the first fix cost is minimal. My one concern is that I haven't actually seen a fan coil rad in the flesh and the ones I've seen online look bulky and akin to the aweful night storage heaters of the past. Windows; what a complete PIA they are. Ours are going in a week on Monday. Well they will be when MBC have adjusted almost all of the upstairs openings which are too small due to a manufacturing error in the factory. I'm glad @jack banged on at me to check all the openings to the window schedules! I also found a couple of errors downstairs too where the slab recess was wrong. Thankfully all of the errors are reasonably easy to put right but will certainly add to their workload.

You screw the terminals in each vent to increase / decrease air flow. That said, I've not got round to doing mine and been in the house since September. Will probably need to do this to get BC sign off..

It may do. The silencers I made are a mix of expansion and absorption silencers, larger chambers lined with acoustic foam to absorb the sound. They work by slowing the air flow velocity down, which allows the sound to be better absorbed by the larger exposed area of foam (technically it's converted to heat which is then dissipated, before someone mentions the law of conservation of energy...........).

BPC do an acoustic vent which may help you https://www.bpcventilation.com/125mm-metal-acoustic-supply-valve

just guessed really, I went through a few slates and picked a thick, thin and medium slate, then measured them with an adjustable spanner because I couldn't find my calipers, then cut out the corresponding slots on the band saw

It depends really. standard windows (square, rectangular) - 15 working days production. Add a sliding door 20 days production. Add shaped windows 30 days. Add entrance doors, 8 to 12 weeks. Special requests can vary but these are all standard production timescales. Add 10 days for invoicing and payments being received/ transferred and 7 days delivery. We can be on site within as little as 4 weeks (tight but possible), just depends on the order. Generally we are 6 to 8 weeks, you also need to take into account time to package items for exporting (48/72 hours).

Most of the noise will probably come from the point where the flow is restricted, which is one reason why HB+ put the restrictors inside the plenums, rather than down at the terminals. Our terminals are not adjustable, they are fixed, full flow, and the flow regulation is by fitting restrictor discs inside the plenums, at each duct connection point. It was a PITA to balance, because of all the running around, but it does mean there's no flow noise from the terminals, even on those runs that are throttled right down.

Well, I emailed Gary and he responded very promptly. He advised that although they haven't had any sound transmission issues reported, he is going to send me a silencer . He also suggested that the noise may be due to an air imbalance within the MVHR unit. I'll start a topic to discuss this. My acoustic foam has also arrived so my plan is to knock up my own silencer and when I receive the silencer from BPC, test run both to see which is most effective on the supply, and use the other for the extract.

@craig, the quotes actually didn't change, we just needed to split a couple of windows into two leaves rather than one. I can't fault the (German) manufacturer - their product is very high quality, and they were a pleasure to work with (the MD sat with our architect for two hours going through installation details and provided some very helpful ideas). The installers, unfortunately, did a poor job. Missed that the windows were to be packed up by 15mm to allow fitment of cills, which meant we had to hack off the edge of the cavity closers to make space. Then it turned out that they hadn't realised they needed access from the side to mount the external blind rails to the window frame, so I had to go around taking of all the exterior battens. They left on the the morning of day 5 of a fixed price "5 to 6" day job, then demanded full payment for travel time (they came over from Ireland) and accommodation to come back and finish the job when the issues above were identified. To add insult to injury, I found out some weeks later when I went to remove the cills to work on the butchered cavity closers that they'd obviously not had the right screws to hand to fix the cills, so they used construction adhesive to permanently attach them! I would never, ever consider having installation handled by anyone other than the window supplier. The opportunity for buck-passing and excuses is just too high.

We're not supposed to either! We're breaking the rules. Thankfully the house is relatively sheltered from near neighbours and out of public sight (unless you know where to go to look). The MBC guys know that one complaint to the national park and we'll be back to agreed hours. There's 10 of them on site with nail guns today. Oooops. Yesterday I was running around in full on "peace keeping" mode with bunches of flowers to near neighbours. £200 in flowers (so far) wasn't in the budget Right I need to go and wash the grill pan after making 20 rounds of bacon sandwiches. Tea is in shifts as I only have 6 mugs

Well if you've still got the designs I'm sure @recoveringacademic needs something for the downstairs WC of Great Newt Towers .... What is the current turnaround on windows these days ..? We hear the horror stories of 3-4 months delay so would be worth understanding what the "real" market is like.

Got to say I'm amazed how many of you are seemingly allowed to have work ongoing on Sundays. We're only allowed to work on site from 0800 to 1800 Monday - Friday and 0800 to 1300 on Saturdays. No Saturday afternoons, no Sundays and no Bank Holidays. We can't even push a paintbrush inside the house out of the permitted hours.

Welcome Craig. I've recommended Ecowin/Gaulhofer to a couple of people in the past (one definitely used you) based on running into Thomas on my way out of Ecobuild a few years ago. I went with another supplier in the end, although it turned out that the reason we went with them over Ecowin was actually due to Thomas being more technically knowledgeable about his products than the people we went with! (Basically, he looked at our window schedule and pointed out that some of them weren't possible as openers due to their size. The other lot didn't realise this until we'd committed to using them and their technical department got more involved). Will use you next time, I promise!

We used them and I unreservedly agree with this sentiment. Out of all the trades we had onsite, we only had one person onsite (the electrician) who worked as hard or I trusted as much.

Anymore

I had a similar conundrum for out downstairs WC, which was just to the right of the stack. Further right is the utility sink, then a run, with a U bend trap at the end, connected to a vertical drain that goes upstairs to the services room for the water softener, MVHR condensate drain etc. What I did was fit a branch to the base of the stack, then a very short run to a Y connector right behind the WC, then another short run of 110mm ending in an upstanding elbow, with a cap on it and a 40mm reducer, right behind the wash basin that's to the right of the WC. The waste pipe that runs across the back of the utility room, with the sink and washing machine connections, plus the run from the services area, just goes through the wall to the WC and connects to the short vertical drop where the wash basin waste is. This keeps the "black water" well clear of the "grey water", because of the upturned elbow on the end of the short length of 110mm. From your drawing, I think the same arrangement would work for you.

All depends upon if it's boxed in and you can lift the waste pipes accordingly. You can't go into the end of the soil as you'd have to have the WC outlet going into a Y-branch first to direct the black water flow and only then can you fit to the end via a 110mm x 50mm reducer. You will only be able to fit a tee behind a 'flush pipe' ( high level separated cistern ) WC which are a bit old and ugly as a closed coupled WC won't have room for a tee and a pan connector behind it, so basically you'll have to boss into the top of the soil pipe and then turn 90o right to send the waste over. You'll could struggle TBH because of the height ( fall ) needed for the washing machine upstand, unless you buy a combination trap for the sink and connect the washing machine waste to that.

MBC Timberframe in Gloucester? We used them, and they were very good.

Hi Craig. Thanks for the introduction, and an early welcome to the 4-kid club , ( which really buggers up your choice of family car btw ). Your input could be quite helpful so hopefully you'll stick around

Welcome. I will have an up to date window schedule making its way to your desk very shortly (hopefully it's correct this time ?).

Hi and Welcome.

Slow progress due to a combination of learning curve around window profiles and limited time on site, but it's moving in the right direction.

Some pointers maybe: https://www.pvccladding.com/guides-and-tips/fascia-installations/installation-and-maintenance/upvc-roofline-installation-pdf/