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General

Oct 2023

More trenches, holes and crushing concrete

So in the last couple of months we've moved on quite a bit for us.   We started on our next section of the build, to be the snug and entrance hall. This is the sticking out part of the 'L' of the build.     We removed the roof covering some time ago, so at the start of July it looked like this.           Then the 4 layers of floor and internal walls were broken down          
Wall insulation

Wall Build up (Choices)

Still in the Sales cycle for my old house (3rd try!) but while I'm waiting I'll be doing site clearing work next month and I want to take a moment here to make final decisions on my wall build up as this moves the locations of my floor penetrations by 100mm.  Target U Values are as follows: 1. External walls U value = 0.1 W/m2K 2. Sloped Roof U value = 0.1 W/m2k 3. Floor U value = 0.07 W/m2k This is based on PHPP calculations, they are more strict as my house is quite sm
Roof

Topping out

Sunday in the Highlands, and the weather has a feel of changing, we've been so fortunate on the build so far, day 105 today, but the last week or so has been wet, windy, sunny, overcast usually everyday. So autumn is on the way. July and August have been busy with the 2 cabins with around 100 nights occupied, that's over 250 people staying, and 30 +dogs 😂. The upshot being we can afford to eat, but the labour for the build has been affected with Mandy continually cleaning and washing.
July 2023

Breaking up and Building up

I just noticed that my last entry was 1st June and now it's mid August.   Where does the time go.   Once again we've lost time on the build, HID did too much breaking and hurt his back and we got a new puppy who is a huge time waster.  Although I WFH I also have to visit clients so quite a bit of puppy sitting going on.     Then there has been the weather, total opposite of last year.   So, down to what has been done. The first main wall is now u
General

Building Regs, Part O and SAP

My previous blog entry ended at submitting the building regs in March, although they were not validated until 5th April and then refused on the 31st May.  I believe my architect had complained on them taking too long so I am guessing when they found he had not included a turning circle for a fire engine they refused them as giving the architect extra time would have hit their own time targets.   We resubmitted 1st June and finally had approval on the 5th July.  A few conditions but nothing unexp
External Wall Insulation

Another few jobs off the list

I'm kind of glad July hasn't been too warm, as its enabled me to get more done than i would have otherwise, but the rain has been the main issue, and surprisingly, hedgehogs which have been running all over the front garden, until they mysteriously all died, why i've no idea, felt very privileged having them here.         First bit done whilst the hedgehogs were still around, the bit i've been wanting to do the most, around the boiler and gas box, where the worst d
Picture from the mound

A time-lapse (of sorts)

Since starting this build we've had a handy mound of "spoil" from which I have been taking regular photos from the same(ish) spot to remind me of progress during the "down" days which we self builders all suffer from time to time. I thought I'd share this with you. It starts in May 2021, when the major groundworks had been underway for a few weeks and goes up until April this year - about 2 years.   First a picture of the mound of spoil for reference:   and now the "tim
Understanding PV energy production variations

Understanding PV energy production variations

Energy production is as variable as the weather. 🙄 But how much does it change the results in a month or year?   Based on calculations using the PGIS data over 10 years I thought I would share the results.  In one calendar year the energy produced can vary from the average by +/- 5%.  In one calendar month the energy produced can vary quite widely!  From +24% to -28% from the average!     Here's my summarised results:                          
Demo and 2 new house builds

The story so far leading to this weeks demolition

It has been a long and windy road up to this point. I bought the plot in February 22 and have had over a year of ecology surveys, useless solicitors including the county solicitor and a few changes of plans along the way before planning was granted earlier this year. The old house which was formerly housing for workers on the fruit farm had been used as site offices for a national house builder. When the builders left it looked like they just finished on a Friday and locked up and went home
ICF WALLS

ICF walls and dodging bullets.

Day 48 of the build was a big one, we poured the ICF ( PolySteel) walls.   Following the slab pour 2 weeks earlier, we start on building the PolySteel ICF walls. I've no experience with ICF, and thus can only comment on the usability and quality of PolySteel. The process is straightforward, all the blocks are t&g on all edges, so you simply use a bead of fire rated foam and push the blocks together. Each block clips to the last with two **clips joining the metal mesh inside th
The Windy Roost Slab.

Insulation, UFH, conduit and Slab

Day 31 of the build. (this is taken from the day we started shuttering the foundations) The weather up North has been spectacular for about 3 weeks, so we (Mandy and I) pushed to prepare and pour the slab before the weather changed, as I'm sure we will get a few weeks of low pressure, wet changeable weather after this spell. Following on from the foundation ICF walls, I'd already loaded around 20ton of 40mm to dust in a pile the slab area. Sat on the sand blinded radon barrier. Jo
ground screws

Pull Test - Ground Screws

So - Attempt #1 of trying to build my house failed - Made Ground (Poor soil bearing), a buyer who wouldn't grant me legal permission to access the mains water after I sold and changed their mind after I'd let go all the builders, and my planning permission extension was refused.    Attempt #2: Re-Applied for Planning permission from scratch - preliminary decision due July, final decision August 2023. Place my house back on the market in the meantime somewhere between tho
The windy roost foundations

Foundation and first course of poly steel.

A busy couple of weeks and favourable weather has seen some progress at The Windy Roost. When in use the word I, or we, I mean Mandy my wife, and me. So far that's the only labour on the build. Mandy has worked office based for 40 years before we moved here, so this is an all new world for her, and although she regularly tells me she's older than me, and she's needs a day off,  I can't be more proud...   It seems that the engineers really worry about the wind here, which is fair e
External Wall Insulation

More jobs getting completed now the weather is warming and drying up

After the worst of the cold weather was out of the way, i decided to start chipping away at my huge jobs list this year, some is finishing off, and others additional bits.   Started getting the block paving back down again, as i was fed up of bringing sand in on my feet all the time, was very time consuming as each block needed individually inspecting for chips, and cleaning of its old sand and sealer around the edges, but kept doing a bit every other day.    
May2023

Wall A & B1 up to damp course

As many on this hub are aware DIY self-build is a slow and sometimes lonely process, particularly when you are a novice.   HID knows how to build, but he's never had to make the plans or decisions previously, he's just been told - dig that trench, lay that foundation etc. etc.   So, we are finding having to explore in depth every step is time consuming and pretty tricky and there is no one place with all the details. We don't know what we are looking for - how do you kno
Breaking Ground

House build started

Finally made a start in earnest. The original plan was to stick build on site, but the cabin builds opened my eyes to the winds up here, and established concern for getting the house airtight. I priced ICF, and although the costs are higher in the begining I think, I can self build for similar money, but get a far superior product. This is a budget build, most of the nice to haves have been dropped. The only redline is we want to ensure this is future proof, so all on the ground floor. 
Apr 2023

At last we have take off

Well, it's really happening. HID left work last Friday, spent the weekend fixing the horses fencing, but it didn't matter as he can now work on the build.   I've created a very detailed project plan for his for 3 days and intend to keep this going as he works much better this way.   This will approximate timings which will no doubt go out the window. We did have an issue last week, he had dug a trench, we had torrential rain and one side fell in, some of our soil is
foundations, soil testing

Stabbed by the soil investigation!

Well, everyone is back from holidays today and my Structural Engineer made a comment about the Ground Investigation Report I've been digesting all day. Turns out my soil is very poor despite hundreds of houses being constructed all over the rest of the estate 25+ years ago, I'm the one with a problem now! I'd have to dig / excavate nearly 2 meters of soil to reach sufficient bearing capacity which means my plans to start groundworks next month are almost dead. If you see results like mine....RUN
General

From the start of planning to site electric

We moved from Manchester to Cornwall 6 years ago and we are very happy with the overall location.  Our existing converted barn, was converted by the previous owner and is very nice but is built on three levels and has 4 double beds, kitchen, dinner, lounge and snug and 3 baths so it is far too big for us when we retire.  When we bought the house I always say we chose it for the working barn apx 300m2, not the barn we live in.  We are building for our future in the hope that we can continue to li
Build blog

How did we get here..

Despite watching lots of Grand Designs, building a house wasn’t something I’d ever considered until about 18 months ago. Fast forward to today and we’ve bought a plot, instructed an architect, and I’ve traded my evening telly time for browsing the Buildhub forum. So how did we get here?   My partner and I want to start a family but agreed that we wanted to move into something larger first. We drew up a list of what we wanted and started our search. After months of searching / viewing w
The build progresses - or maybe not

Wish I'd known everything that's needed before building

I am in the state at the moment of wondering why......   I never realised it was going to be so complicated to get all the paperwork sorted just to lay some blocks with holes in for windows and doors and a roof on top and preferably some heat, cooking and washing facilities, but I would even have considered giving up on those at some point.   Due to the complete lack of time we decided that the builder (HID) would take voluntary redundancy and early retirement and then build
preparation

Selling up and Moving out!

So I'm in the middle of the sales cycle for my Home. The first buyer pulled out but after a month I lined up another. The market is doing well enough despite % increases. So I had the estate agent around today to perform a valuation, the Surveyor comes around on Monday for 90 minutes to inspect the property and I'll be ringing the solicitor to get an update on where the contracts are at! I'll feel a lot better with them signed and a move out date to close the deal (hopefully!).  In the mean
Hourly Temperature Decay and Power usage: Statistics Heavy

Chart Time: Hourly Temperature decay and power inputs.

Prompted by @haddock's query here:   and my few charts to show what has happened in my house, I have finally got all my data together and after looking at dozens of charts, have reduced it to two that show the most useful information about my house cooling, or heating. Initially thinking that the difference between internal and external temperatures was the best base to chart against, I soon realised that it shows hard to understand results i.e. a larger number, the colder it is.

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