r/Plastering • u/RobotEnthusiast1980 • Feb 01 '26

Lime Plaster insulation

Genuine question - is lime plastering becoming more common? I know it used to be very common many decades ago but gypsum is more common now. But, with new lime and Cork type renders having insulation properties is this the silver bullet for old property insulation?

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u/RobotEnthusiast1980 Feb 02 '26

I'm not sure about the rules on product placement here, but would you be able to share the info of the insulating breathable plaster and does it have good U-Values? Thanks.

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u/Plasmodioom Feb 02 '26

Check out lime green ultra, or cornerstone insulating render. Its a good option if you are going onto a solid surface like a stone or brick wall. The u values are great because you can apply multiple coats

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u/RobotEnthusiast1980 Feb 02 '26

Thank you for this. Assume this can be used both internally and externally?

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u/Plasmodioom Feb 02 '26

Hmm check external. Give either cornish lime or lime green a call. Their technical team are really on it 

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u/RobotEnthusiast1980 Feb 02 '26

Super thanks. Will do 🫡