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Category Archives: technical stuff
roughcast revisited
In 2006 I rendered a house extension which had been built with artificial Cotswold stone, hard,slightly glazed, unattractive and unconvincing. So the owners thought it might be lime rendered. I remember thinking that there could be a problem with adhesion … Continue reading
Posted in limewash, Roughcast render, technical stuff
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Nothing need be wasted when using lime
Having finished the harling there was a bit of course stuff left over and the tools needed washing. so both the remaining render and the tool washing water was put in a barrel and, with the addition of more lime, … Continue reading
Posted in limewash, Roughcast render, technical stuff
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Short measures
I am fed up with opening tubs of lime putty and finding that there is not the 15 litres I was expecting, I assume I am being charged for 15 litres so why am I not getting them all? its … Continue reading
Posted in Lime Plaster, technical stuff
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Hydraulic lime variability
Whats going on? I had two bags of Breckweg NHL2 and one bag was distinctly whiter than the other – and I thought they where all the same – well actually I didn’t! – they vary a lot. In fact … Continue reading
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Keying Plaster
The keying of lime plasters and renders is I suppose, best done in a criss cross diamond pattern, you see it everywhere on old buildings, and this can be done with a scratcher made from sharpened laths or maybe a flat … Continue reading
Posted in Lime Plaster, technical stuff
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Cotswold Conservation Board Rural Skills Course – Lime Mortar for beginners.
21st and 22nd September. Another Cotswold Conservation Board lime mortars for beginners course, again held at the Ebworth Centre in the Cotswolds. By the efforts of another 6 wonderful students a little old one up one down stone cottage moved … Continue reading
Posted in Training courses
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Rendered DNA
During the spring I began the creation of a Modern modelled render – not pargetting, but neither strictly sgraffito. In actual fact not modelled at all but carved into the surface of the KRend render (a pity it wasn’t lime … Continue reading
Cotswolds Conservation Board Lime Mortar Course
Held on the 1st and 2nd of September at The National Trusts Ebworth Centre and conducted by myself. …….. and this is the site: A derelict stone cottage circa 18th century. The course was organised by the Cotswold Conservation Board … Continue reading
A summary of limewashing a house
As with many render repair projects the main difficulty was the removal of the lichen and grime, unless this is done thoroughly then the limewash will not adhere satisfactorily, therefore the first task was to power wash the render and … Continue reading
Posted in limewash, technical stuff
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looking at mortar mixes
Determining mortar mix ratios visibly. Imagine four snooker balls arranged in a pyramid, 3 on the bottom one on top. There is a small pyramid like gap in the middle of this arrangement. The volume of this gap can be … Continue reading
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