Re: EcoStay building project61
Jan 31, 2019 2:45 pm
We're building a wall in the downstairs bedroom. This particular wall will be mudbrick and about 3m long. It has no windows or other features.
So, we've decided to put some timber slabs in it. In the build and on the property we have three main eucalyptus species of timber so we've cleaned up three slabs (offcuts from milling) of these and will install them into this wall.
The three bits of offcuts. (Before)
After cleaning them up.
Re: EcoStay building project62
Feb 15, 2019 11:22 am
One of the walls will be curved. This was originally planned to be a straight square corner however the idea of curving it instead stuck with us. Now it's becoming a reality.
Tricky work keeping everything straight and level as I can't work to string lines on the curve Each mudbrick has to be checked with a spirit level back to a reference point.
Re: EcoStay building project64
Mar 10, 2019 7:25 am
All the downstairs walls are now up to the floor of the upper level. Time to catch up on some wiring and plumbing jobs. This work takes time but shows no visible progress so the site looks like nothing has happened for the past week.
Meanwhile we got some more white clay for rendering the stairwell walls.
A friends place where they have a dam with white clay.
Sifting out the lumps.
36 buckets of fine white clay ready to be made into plaster.
Re: EcoStay building project65
Mar 27, 2019 12:48 pm
So is there anything you won’t turn your hand to?
Can you tell us how much work and specialised knowledge is involved in the polished concrete? Is it just the top surface of the slab, ground and polished, or is there an added layer of concrete with special properties?
Re: EcoStay building project66
Mar 27, 2019 6:31 pm
I'm no expert in polished concrete. This will be our first floor in polished concrete. We've already done a test sample and we like the look.
We polished this with an angle grinder down to 3000 grit. Even without any sealer it has a sheen.
We poured the floor with 32Mpa concrete containing 20mm aggregate then sprinkled crushed glass over the surface before the initial floating. Within the first week we hired a commercial concrete grinding machine and ground the surface back with 40, 80 and then 120 grit diamond discs.
Since then we ran a slurry of cement and acrylic sealer over the surface to fill any voids created by the initial grinding. We'll leave this grout layer in place until the build is complete then we'll come back with the grinder again and successively grind the surface back until we get the finish we're after...probably 3000 grit. Not sure yet how we'll seal the surface so the concrete doesn't absorb any spills but we're looking at using an oil product rather than epoxy or acrylic as that will not scratch or yellow.
There's plenty of information out there on this topic or you can approach your local friendly concrete polisher hire place for some local knowledge.
Re: EcoStay building project67
Mar 27, 2019 6:36 pm
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Re: EcoStay building project68
Mar 27, 2019 7:28 pm
This is awesome! Why are you not on Grand Designs Australia?!
Re: EcoStay building project69
Mar 27, 2019 9:46 pm
Thanks for the reply.
More questions if I may.
How long would it take to do a room, say an average size bedroom?
Would you say it’s the type of job that a reasonably experienced DIYer would be able to get right first time, or does it take a fair bit of experience to get a nice flat level surface?
Re: EcoStay building project70
Mar 28, 2019 10:19 am
I reckon you'd have no trouble getting a room done with one days hire of the equipment. A whole house might take two days. Cost is around $500 including the vacuum dust control. We had no problem keeping the surface flat and even.
Maybe ring around the hire places (avoid the big chains and look for someone whose only business is hiring concrete finishing gear) and have a conversation with them about your needs. They're the ones with the real knowledge gained from experience.
Polished concrete is an attractive, low maintenance and durable finish, good luck.
Re: EcoStay building project71
Apr 19, 2019 6:55 am
We got all the flashing installed last week and that's really tidied the roofing up nicely.
Now for the guttering. We've chosen a 150mm half round gutter. The gutter clips offered to us by the gutter manufacturer are designed to attach to the rafters or the underside of the roof sheeting while the weight of the gutter rests on the rafters bird-mouthed to suit.
These clips go over the top of the gutter and I hate anything that could cause a blockage (with debris) or restrict cleaning. So, these were deemed unsuitable and returned.
We have no rafters or facia board to attach to as we have used structural insulated panels (coolroom panels) for the roofing. So we have designed our own custom gutter supports.
We spent the morning cutting, grinding, drilling. welding and painting to make 37 brackets.
Then installing them all. One support every meter. 1:300 fall (3mm per meter).
I can't show photos of the completed installation as it got dark as we were finishing up but it has rained since and my 3am torchlight inspection looked good.
Front and rear gutters drain into small (2,800 litre) tanks. These tanks are interconnected and the lower tank has a float switch installed that operates a pump to transfer the water up the hill to the large storage tanks.We had 8mm of rainfall and when I checked, the pump was running. I'll have to wait for daylight to check if there is any pooling in the gutters.
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