Stratman

Just to update you... After having appointed Scotframe to start their structural scheme and SAP assessment a few weeks ago, I've now been informed that they are restructuring and closing thier factory. Which means that they are no longer offering their closed panel Vaultherm+ system or additional elements like windows, stairs, etc. which was the whole point of chosing them. I do hope that one of the other suppliers I got quotes from (and were very patient with me) will still be willing to deal with me.

I can tell you that our timber frame package company will be doing fascias and soffits before I get the roofer in. I guess this is normal.

Thanks - 2 to 1 it is!

Thanks for the replies. So far we have one vote for option A (with extra chamber) and one vote for option B. Silly question perhaps, but one I can't find the answer to elsewhere: which stack is 'at the end of the run'? The one furthest from the connection into the sewer or the one that's closest to it? I have all the approved documents downloaded but I find Part H difficult to interpret in some places.

@Nickfromwales As a follow on question: do I have to have one of the stacks vented to outside or can they all have AAVs? If possible I would prefer to avoid another penetration of the thermal envelope. I find the wording of the building regs a bit confusing.

This chap's Danwood experience is an interesting view. We visited their show home near Bicester; it looks like good option for an easy turnkey project but it felt a bit too factory-made to us. https://m.youtube.com/@myselfbuildjourney1219

I've used Reolink in our porch. Has solar panel and can be used with WiFi or SD card. https://www.argos.co.uk/product/7623466?istCompanyId=a74d8886-5df9-4baa-b776-166b3bf9111c&istFeedId=ec80e37c-7084-4de4-acaa-75978d50b2af&istItemId=qlxwiiqai&istBid=t&&cmpid=BPLA01&utm_custom1=1199567739882649&utm_custom2=F1126HQA&msclkid=b2e4c230beb710811cb9aa9500551ad1&gclsrc=3p.ds&gad_source=7

I would appreciate a bit of advice on drainage. I will have 3 stacks: 1 from first floor ensuite and down to pick up kitchen, 1 from downstair ensuite, and 1 from first floor bathroom and down to pick up utlity. Is it better to have as short a route as possible to outside the slab, then route them around the house to connect into the sewer, or shorter route 'as the crow flies' direct to a sewer? Both options via an inspection chamber to final connection to sewer. Option A or Option B? ...or something else completely?

Would you mind elaborating? I wouldn't want to make the same mistake.

Incidentally, I believe this wont be enough to determine ground permiability value adequately for a SUDS compliant soakaway, but I'll do a proper larger deeper pit once we get the groundworks going.

Like this: https://www.southwalesgroundtesting.co.uk/tracked-dynamic-sampling-and-strength-profiling

A two man diesel powered rig hammered 1m sections of 100mm pipe into the ground then withdrew the cores for analysis. Filled one hole with water then measured the level as it went down over a few hours.

I had six bore holes and a percolation test for £850 earlier this year. They were really useful in determining soil strata and a thin layer of clay so how far down to excavate to compacted shale. The holes went down nearly 2 metres.

https://vekauk.com/product/windows/softline82-passivhaus/ www.precisionpvc.co.uk/product/m70-windows-residential

@Nickfromwales thanks, that's good to hear. @Adrock So these are marketed as Passivhaus standard. I have a quote from Precision (who are based near Glasgow but supplying to Wales) for Veka's Matrix FS70 triple glazed system, but I'll probably go for the more modern bevelled profile of the Halo System 10 or the Softline Passivhaus.