Lime mortar – leave it ’till spring

Lime mortar is back in a big way. This past year we’ve used natural coloured Eco mortar, fat lime, Lithomex plastic stone repair and hydraulic lime from NHL 5 down to NHL 1.5. My guy’s have re-built unstable walls, re-pointed and re-rendered with it – it is wonderful stuff. Sales are up year on year and we enyoy working with it.

This has now stopped for the winter.  Orders keep coming in of course, but I have to tell customers to wait until the sun returns.

A client in Harrogate is furious because she’d like to get the work done before February. However, there is little chance of a couple of weeks of temperate weather now, so I’ve had to resist.

Lime mortar cures very slowly, and in cold, damp weather, it will sit for ages before gaining any strength.  If it is attacked by frost in that time then I’m afraid it is curtains for the material. All the effort in applying it will have been wasted. Insulation can help ,but is only really effective in providing temporary protection, against say a short light overnight frost. prolonged cold temperature’s will inevitably get the better of any external lime mortar repairs from now until spring.

You’ve been warned – don’t try it; you’ll get burned.

Dry Rot.

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Copyright © 2010 Preservation Expert. Legal Stuff: All the advice and information in the posts on my blog is made in good faith and is based on my experience and knowledge at the time of writing. However, nobody is infallible and whilst I’m confident that most of what I write about preservation issues is accurate, there’s a good chance there’ll be an error or two somewhere. I do change my mind about stuff, as I gain more experience. In view of this you must make your own decisions on whether to follow any advice I write and think about this; I could be wrong. No responsibility will be accepted by the author for any losses anyone may suffer as a result of any mistake or for the consequence of any action you take as a result of reading this blog. If you do suffer a loss, resulting from anything I’ve written, a verbal heartfelt apology will be your only compensation.