Tidying loose ends

I was in Aberdeen for 8 working days near the start of July, to clear the decks before getting our floor slab laid in August/September.

Catching up with progress: Ric had got a lot done after we headed back south.

The monumental task of clearing the courtyard is well under way.

A large chunk of the courtyard cleared and levelled.

Almost all cleared!

The soil screener is remakably effective, separating concrete & stones from spoil.

This is our uncrushed concrete pile.

This is the hardcore that replaced much of our concrete pile.

In the background, the screened spoil is being re-distibuted.

 

Complete the gable-end foundation
Ric had time on his last visit to lay the missing foundation for the north-west gable-end wall. I was to do the blockwork and associated concreting. The foundation is rather complicated. It includes:

1. The foundation for the gable-end proper, to support the wall to one side of the future garage door. This is two leaves of blockwork, 50cm wide and some 2m long.
2. The foundation of the adjoining wall on the single storey section, also two leaves of blockwork. This is set back 22cm relative to the gable-end and is about 1m long
3. Tying this foundation into the Front door foundation, which is single leaf blockwork.
4. The back of the gable-end foundation tying into the internal foundation that is to bear the structural timberwork for the floor joists, roof trusses, stairs and garage wall.

I measured up from as many reference points as possible, marked out the lines to follow and got going. As usual with working below ground level, I used a 1:4 mortar with plasticiser. I got the first two courses in place and filled the section with two leaves with 1:8 weak concrete. Next day I did the two remaining courses, thickening the mortar to get the required height. Because I am not sure of the finished ground level, I left the outer leaf at the same height as the inner one, I will raise it later if needed. I ran the gable-end blockwork along the full run of the foundation, it may need trimming back when we sort out the garage door, depending on what size opening we need. Anyway, it was then straightforward to run the front door and internal foundation blockwork to meet the new blockwork. Two days of effort in total.

Two courses of blocks in place.

Up to full height, four courses of blocks.

On the left is the missing wall onteh north wing, running up to the front door. On the right is the gable-end foundation running up to the garage wall.

The gable-end foundation blockwork filled with weak concrete.

The north wing foundation filled as well.

Bridging the gap between the front door foundation blockwork and the new foundation.

The foundations all joined together frpm front door to garage door.

The internal foundationthat will support our garage wall, the roof and the stairs is also connected. It needs some reconstructive surgery itself, when we get round to floor slabs.

Run an air pipe for our woodburner into the steading
Our woodburner will be used during the colder months to 1) heat hot water and 2) power the underfloor heating, supplemented by the air-sourced heat pump.

The warrant specifies an 18kW Boru Carraig Mor double-sided stove model (i.e. has glass-faced doors both sides). We did say in our conversation with the architect that we would be interested in a double-sided stove, located between the kitchen/family room and the lounge/dining room, so that we could heat both directly. However, double-sided boiler stoves are a rarity, probably for good technical reasons. We have struggled to find good reviews of this model, it is not particularly efficient (73%) and Boru stoves in general do not seem to be well rated. We will pass on it and find a higher-efficiency, better rated model. A plus for it is that it puts 13kW into water and 4kW into the rooms. With our levels of insulation that is probably about the right ratio. The majority of boiler stoves put less into water and more into the room, so we will still be quite restricted in our choices.

Whatever we decide on, we need to provide it with a source of air from outside. We decided to run 110mm pipe down then under the north wall, up into the hardcore under the slab and run an upright through the slab. The outside upright will need a cover of some sort to keep water and animals out.

I could not do the whole job because of a big pile of spoil on the inside of the wall. I dug down on the outside, then under the wall to as much over 50cm length as possible, so that the pipe would stick out the other side when we got the inside excavated. I cast a 200mm slab of strong concrete under the wall, put 100mm concrete block each side and five sections of 100mm x 50mm lintel across the blocks. For the last three lintels, I rammed dry-ish mortar up to the base of the wall, I will sort out the first two from the other side of the wall later. We were concerned about water getting into the pipework, so I dug a channel downhill to the main drain running conveniently close by and filled it with pea gravel.

I used slotted drainage pipe for the horizontal under the wall, to stop water accumulating in the pipework, the rest is to be brown pipe. I filled up the area around the pipe to lintel level with pea gravel, then covered with spoil. Less than a day of effort in total.

Hole dug down and under the steading wall from the outside.

I broke through into the surface water drain, you can see the gravel.

The concrete pad is in place below the wall.

Gravel in place to allow water to soak back into teh surface water drain.

The blockwork and lintels went in on the pad, the slotted horizontal and brown upright pipes are in place, with gravel around teh upright and spoil elsewhere.

The hole backfilled with gravel and spoil to above lintel height.

And all levelled up to finished surface.

Cap the wall heads with mortar
Back around Easter time, I got one wall covered in a layer of 1:4 mortar. This is to protect the wall head from rain soaking down into the core of the wall and freeze/thaw damaging the structure. It also provides a flat surface to lay the blockwork that will raise our roof by the 40cm specified by the warrant – to give us enough headroom in both upper and lower floors. I even got some of the blockwork in place, but had to abandon work on it because of other priorities – demolishing the gable-end wall and filling the soakaway, as I recall.

On this visit, I needed to get the remaining wall heads protected with mortar, though I knew I would not have time for the blockwork, which we cannot complete anyway without all our lintels in place.

I started on the south wall of the north section (single-storey), then did the higher walls in the west, then east sections. It took seven builds of one- or two-bays of scaffolding to get the job done – much of the time taken was constructing and dismantling, relatively little was mixing and applying the mortar. The south wall was in poor-ish condition and needed some reconstruction before laying the mortar. The others were in much better condition and quicker to sort out.

I mixed a barrow of mortar at a time and used a large flexible builders bucket to get the mortar up the scaffolding. I then poured the mortar onto the wall heads and spread it using a bricklayers trowel. I got the mortar horizontal across and along the wall to within 5mm or so using a spirit level for close-up and a scaffolding plank for the overall levels, then moved on. The whole thing was quicker and easier than I expected. Two days effort in total.

At the start…

The north wing walls need quite a bit of patching up.

This is where the roof has shed water onto the wallhead and damaged the lime mortar.

Cement mortar laid with no more than 10mm variation in height.

Now moving to the west wing.

The west wing wallheads are in disctinctly better condition than the north wing walls.

This teh north win with blockwork on one side and the new capping on the other.

Weeding
This was not planned. From a full clean out in April, our fencing, hedging, orchard and shrubby area was inundated with perennial weeds – mostly sow & common thistles, cotton (Scots) thistles, nettles, grasses, goosegrass and docks. Most were getting ready to flower, but had not done so, so I figured they could be safely composted.

I hand weeded the areas with plants we wanted to keep – all the areas with weed membrane and woodchip mulch. I made several useful observations: 1) the woodchip mulch is starting to break down and compost, meaning weeds are starting to take root above the membrane, 2) grasses creep over the edges of the weed membrane and grow roots through into the soil below, 3) many of the thistles are finding the slits in the weed membrane, pulling them up is easy and brings large amounts of horizontal tap root with them and 4) the stones we use to hold the membrane in place accumulate enough soil to allow weed seeds to germinate.

The rest of the plot I could & did strim. Our strimmer, a Stihl FS-40, is a brilliant, very capable, piece of kit which takes 2mm line. It excites our dog wonderfully. It is too light for the mature docks and cotton thistles, I used a spade to slash these off at ground level. I do need to look around for a better-designed slashing tool.

The north run of hedging + weeds.

The east run of hedging + weeds.

The south-east corner was particularly overgrown.

The fields outside the fence were overgrown.

Field boundaries sorted!

Weeded on teh left side, unweeded on the right!

I broughtthis Acer up with me and planted it in place of a deceased schrub.

Our shrubby patch needed tidying up.

Our rochard-to-be was also getting drowned by weeds.

This Bramley has fruit on it!

One of my more impressive barrow-loads of weeds.

Adn teh compost heaps were full!

All looking much better.

This is one of our copper beech trees.

Spare time
Unusually, I finished ahead of schedule. I had a full day to do the odd jobs that had been lurking in the background. Amongst other things, I tidied the bothy and hung loads of hooks, to store shovels etc..

Hooks to hang most of our building tools, plus the strimmer.

It may not look so, but this has been majorly cleaned up!

Easter Visit

We arrived on site a week after Ric had been obliged to head south for a fortnight. We agreed a shortlist of priorities for the following weeks: Start capping what is left of the walls with mortar and blockwork, to protect them from another winter of rain and ice; pull down the north-east gable-end wall (the one with half the foundations missing); finish the surface water drain including filling the soakaway with rubble; clean out the concrete tank; screen spoil, distribute it and level up the courtyard; prepare for the floor slab. Too much to do in the time we have, but we will see how we get on.

Caravan: We planned to stay in the caravan most of the time, with twice-a-week visits to Bucksburn. We brought a 3KW electric heater up with us, swapped our empty gas bottle and got hold of a third one. The first night we were freezing, we went to a supermarket the next day and bought second duvets as well as missing utensils. Once we mastered the art of putting the heating on at the right time, we were very comfortable and quickly benefited from the extra time not spent driving to and from Aberdeen. The water heater was wonderful, good hot showers, reasonable flow rates.

Mobile Coverage: I have changed my mobile service provider from EE to Tesco Mobile. I can usually get two bars of 4G in the caravan and because I can use all my data for tethering, I have better connectivity than in Bucksburn.

Jill is on Vodafone, which also has decent reception. This got tested out for real whilst we were there. Jill’s sister, Vicki, and family were on holiday in Iceland. One of them ended up in hospital and needed a scanned image of their EHIC card. We persuaded Jill’s mum, Lesley, to find the card then to get one of her friends to take the photograph and email it to us. Jill forwarded it using MMS to our niece, Lucy, at the hospital in Reykjavic. Job done. We can use our caravan in north-east Aberdeenshire as a global communications hub!

Misty: Our blue merle collie cross was suspicious for a day or so, but got to appreciate being able to get out of the cold and wet. She spent all day being excited by anything and everything going on. As last year, it took its toll – she got so exhausted she was reduced to lying in her basket to eat her food. We supplemented her diet with extra dog meat.

Caravan: We sorted the longstanding niggle about the caravan sloping to one side. We bought a 4-tonne bottle jack and I cut some plywood shims. I crawled underneath the caravan to where we had put the frame on concrete blocks last year, I jacked up the low side and pushed the shims in. It pushed the side up about 3cm and that was enough to sort out the tilt. I also greased the jacking points, which were getting quite rusty and difficult to turn.

Garden: It is a great time to be in the area, with spring springing. Jill had planted daffodils and snowdrops last year in what we had hoped was a safe area, they were in bloom.

Hedging: She gave all our hedging a good spring clean. She removed the tree tubes, cleared debris and weeds away and pruned them. A remarkably small number had died. Most were bursting into life and had not yet been cut back to tree-tube height by rabbits/hares. The latter may have plenty of other food at the moment, hopefully the hedging will get big enough to simply out-grow pests. We used a tray of hedging plants that Jill’s mum had been bringing on, to replace those that had not survived.

Orchard: We extended our future orchard in the south east corner. Jill had found another end-of-season bargain online and ordered four new bare-rooted fruit trees – apple ‘Falstaff’, apple ‘James Grieve’, apple ‘Ashmeads Kernel’ and plum ‘Victoria’. Driving up, we had stopped at Morrisons in Berwick-upon-Tweed and bought one each of cherry ‘Morello’ and cherry ‘Stella’. They are now safely planted.

Broken Glass: We did another sweep of the grounds removing broken glass that had surfaced since the last clean-up – we are still filling a bucket or two over the course of a year.

Japanese Knotweed: Had not broken the surface yet!

Rhubarb: We cropped it for the first time and stewed it!

We added a second lot of fruit trees to our orchard.

Raised drainage mound: We took time out from our more physical tasks to pin down where we would build the raised drainage mound that will take effluent from our septic tank and allow it to soak away through our otherwise not-very-permeable and high-water-table grounds. There was not a lot of choice, we found a 10m x 7m area where the concrete ramp had been, a safe distance from our boundaries and soakaway, avoiding our area of new fruit trees and the established ash/sycamore trees. Ric worked out that we could minimise the visual impact by flattening the area uphill of where the mound will be, by dumping screened spoil and levelling it. The mound will either line up with the levelled area, or will stick up a bit, but not much. What we are not sure about is whether it needs to be separated from the levelled area by a trench, or could just be an extension of it. I will check with the architect at some point.

The Festive season

Planning: We had done a little planning over the run up to Christmas. We were to be in Aberdeen for the best part of two weeks, but with little steading time.
I needed to correct the problem Building Standards pointed out with our foul drain – swapping a 90 degree bend with two 45 degree bends in our backdrop to the main bathroom inspection chamber. I bought the extra bits to take up with me.
We renewed our public liability insurance for the site.
I endeavoured to contact Stevenson & Kelly, who are based near Balmedie and manufacture roof trusses. This was not initially successful with my emails getting lost. Once I got a direct contact email address, just before Christmas, I was in.
On site:

We had put webbing straps over each end of the caravan, attached to large granite boulders, to stop the caravan blowing over. One strap had worked itself off. Both showed wear marks on the caravan skin where metal parts had rubbed against the metal skin of the caravan. Clearly we had had strong winds between September and Christmas. I put the missing strap back and wrapped padding around the metal parts to stop them rubbing directly.

I had had a roll of heavy duty windbreak netting delivered, to put along the southern boundary, which is where our strongest & most regular winds seem to come from. It was a perforated plastic mesh rather than netting, I used a pack of removable cable ties to fix it on.

I dug up the main bathroom inspection chamber, disconnected the backdrop and pulled the rodding point out from the chamber riser. Oddly enough, the two 45 degree bends fitted exactly where the 90 degree bend had been and I was able to slot it all back together, switching the junction that included the rodding point round 90- degrees so that it provided access down the backdrop rather than up the drain into the steading. No trimming to size needed. I did not have a spare riser, so I put the one with the rodding hole on top of the other one. We can swap it back out next year if needed. I took photos and emailed them to Building Standards. They did not reply before we left to go south, so I filled the trench up to the level of the second riser.

We had realised that we did not drain our water heater back in September and feared for it. Quite rightly. I put the water back on and noticed drops of water appearing underneath. I pulled the cover off but could not see where the water came from. I did track it down – a pinhole in the pipe that takes heated water out of the combustion chamber that carried a tiny jet of water over the wall of the cupboard where it ran down. I consulted with Ric and decided that there may be other leaks waiting to show themselves – we will buy a new heater.

Out daughter Mairi & boyfriend Ian were up and wanted to do something – I gave them breaking bars and got them to open up the missing window in the south-facing wall of our single-storey section.

I planted out our four bargain fruit trees bought last May – Egremont Russet apple, Worcester Pearmain apple, Bramley’s Seedling apple and Merryweather damson – in our orchard patch in the south-west corner of our plot, we had laid out the weed membrane last September. I used our roll of plastic mesh to make rabbit guards for the trees. We had to sort out the area of conifers we had planted on the north side of our plot last September. Most of the rabbit guards were leaning at angles, two had removed themselves and were on our concrete pile. It looked as though they had been wind-blasted. The conifers had suffered badly, but we patched up the guards and put extra stakes in to hold them down.

Right at the end we went over to see another couple who are converting a steading, the far side of Ellon. They are living in a caravan with their two children, have an L-shaped steading and 4.5 acres of field. They have a sheltered access from their caravan into a large shed/workshop. They will work with a builder to get the steading watertight, rather the way Ric is helping us out, then finish the rest themselves. It is good to know others who are in a very similar position to ourselves. They are even expected to build a raised drainage mound as well!

 

This is what the straps should look like.

This is what it looked like on arrival, it got fixed.

Heavy weight windbreak in place!

The leaky water heater.

Misty keeping a close eye on my efforts.

Backdrop corrected as per Building Standards.

Ian & Mairi at work opening the new window on the south wall.

Done, about 70 cm above expected floor level.

Weed membrane in place for our to-be-orchard.

And r first four fruit trees planted.

Our shrubby area on the north side of the plot.