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Cutting Corners

Posted by slidersx200 , 19 May 2015 · 1,626 views

We're not bodging, but rather softening the edges of the block work outside before the plasterers start to apply the render. This will hopefully add to the sense of longstanding and tradition we're aiming for and steal a little more daylight in through the windows.

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Chasing information and pricing from render suppliers is like pulling teeth, but I now know the product we'll be using if I can just find out how it is to get to the site. It is a premixed blend of white cement and white sand, along with a few additives including an algaecide that is manufactured in Southern Ireland. The manufacturer can sell it to us for about £5.70/25kg bag with courier delivery bringing it to about £6.50, whereas the local stockist is charging £9.75, so a considerable difference given that we need about 400 bags! We could potentially save more if they can deliver to us directly with one of their own trucks, but my repeated telephone calls are never returned when the elusive person who could answer this query becomes available.

Our original costings had accounted for a standard sand/cement render, painted white which not only had a higher cost upfront, but required another step in the process to give us our desired finish and would mean further upkeep down the line.

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The joiners came in on Saturday to make up some protective covers for the windows and sills while the reveals were being worked on to prevent damage from flying shards or a stray hammer blow.

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The window protection film I bought has delivered mixed success; it adheres perfectly to the glass, but not so much to the foiled frames. My work around idea for this is to wrap the film right around the sashes with the windows open, then adding a second layer extending over the face of the outer frame as the film sticks well to itself.

Despite high winds and two days of sunny spells interspersed with heavy hail showers the block layers have almost finished the garage gables. They had another day's building since I took the photos and once that work has hardened the joiners will be turning their attention to erecting the rest of the trusses so we can floor the loft and felt the roof.

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Back inside, the stud wall frames are now built so we can walk through all the spaces and get a feel for the size and shape of the en suites etc.

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We made a couple of alterations over the planned layout, mostly around the master en suite where we moved the door from the corner to the middle of a wall and curved the corner. This gives us more usable space in the en suite and I find the curve more appealing than I think having the door at 45° would have been.

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The wall between the main bathroom and plant room space for the ventilation system has also moved slightly to accommodate a slightly different bathroom layout. (Plant room on the left)

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First fix officially started today with the arrival of the electrician and his boxes of bits. A new wave of progress and a sea of new on the spot decisions I suspect!



The traditional white render used here is mixed with ordinary sand, Snowcrete (white concrete) and a little lime. Nice natural off white finish.
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Do you add zest aswell, or is it just the juice? :-D
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shell820810
27 May 2015 07:33 PM
Is that a k-rend type product for the render?
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slidersx200
27 May 2015 10:37 PM
I'm looking at Kilsaran One Coat Render which is a bagged mix of white sand, white cement, lime and additives such as waterproofer and algaecide.

K Rend strongly advertise their "silicone technology", but make no mention of lime that I have seen. That is not to say the products are not similar, but they are marketed differently and the Kilsaran tech guy said their (Ultrawhite) One Coat is just the white sand/white cement mix with extra waterproofer. For this reason it seems the standard white sand/white cement mix has been discontinued.

Discussion I found on plastering forums suggested that the Kilsaran product has a sharper sand in it than some competitors and when we did our homebrew sample panel one thing the plasterer said was that the white sand we got was very fine. I don't know all the intricacies of what the problem with fine sand is, but consensus seems to be that sharper is better.

The plasterers finished the scratch coat on the house today and I'm ordering the render this week. It is being delivered at no charge and buying direct is saving over £1700 compared to the merchant price.

Just hope I'm making the right call, but in any event I cannot wait to see the whole place in white and with the scaffolding gone! We'll then be able to finish slating and get the flat roof covering on so the only thing we'll need to be watertight are the blasted French doors. Something will be ordered to fill those holes by next Friday!
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Hi, if the planners make me have a render finish I also plan to round the corners to make it look oldy worldy. How did the renderers cope with these round corners, I imagine they might of complained at not having a bead to work too?. How did the colour turn out.

Regards. J
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slidersx200
09 Jul 2015 08:20 PM
Hi Joe,

The white top coat was started just today so until it gets a chance to dry I won't be able to comment accurately on the colour. The bagged render is called "Ultra White", but so far is slightly on the cream/grey side of "white-white".

There hasn't been any complaining (that I have heard at least) and it seemed my presence was welcome this morning to make sure their interpretation of the brief was correct. If a day's work can't be finished at an internal corner they are taking the render past an external corner by about 18" so that the join can be covered by a downpipe. To give them the best chance of minimising joins, the main plasterer has amalgamated two squads, so there are six of them working simultaneously.

I will be updating my blog soon and can't wait to post some photos with the render on!
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