Author Archives: byrnesurfaces

About byrnesurfaces

conserver and repairer of historic surfaces

repairing cob and re-rendering with lime

This cottage had a cement render which was cracking. It turned out that it had been applied over thick to the cob without any attempt to anchor it to the dusty surface of the cob so that it was just … Continue reading

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felt float

For some reason felt floats are not widely used. They are difficult to find so I thought I would make my own. I find it really useful for smoothing mortars with a high lime content. Being felt it grips the … Continue reading

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a little job with curves and corners

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new replacement lath and plaster ceiling

the difficulty with this ceiling was that the floor joists were so bent in the middle the new ceiling could not be made flat – the two alcoves governing the level of the ceiling edge. But by carefully compromising and … Continue reading

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Lime wash colour matching

Occasionally an interesting job comes along; in this instance just a little limewash order but the colour had to match a rather bright green nylon fabric, the colour is close to a bright green apple. It was certainly not within … Continue reading

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renovation of our lounge

The walls were still lime plaster, some on masonry and some on lath but all were painted with purple emulsion. They were pitted, some of the top coat of plaster was pealing off and the walls had been chased for … Continue reading

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The 1:3 ratio

http://www.buildingconservation.com/articles/mythmix/mythmix.htm This article by Gerard Lynch was published in 2007. It’s been ten years and still the ready mixed lime mortar producers haven’t fully taken it on board. The most enlightening statement for me is this: “under analysis, the majority … Continue reading

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Stamped plaster work

Stamped plaster work. Initial trials of stamping lime plaster with wooden blocks using an innovative plaster recipe. The plaster can be used as an ultra fine lime finishing plaster which can be applied 3-4mm thick and simply trowelled smooth but … Continue reading

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how to plaster a wall (first coat)

start with a bare wall, loose material removed, brushed down and lightly wetted . apply plaster around the edge like a frame ; i got the left hand one flat then some horizontal ribs to project the levels to the … Continue reading

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my Japanese plastering trowels

These are the only plastering trowels I use.  Starting at 9 on the clock: a medium sized Jigane laying on trowel,  next a little really flexible polishing trowel, at the top a larger jigane, recently used for laying on the … Continue reading

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