Use of insulating lime render on existing NHL render?

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Hi all: advice please. My Listed 17c timber frame house in Chester is mix brick, stone and rubble under NHL render put on 2003. We have a Victorian bay window which is always cold despite facing south. I am proposing to patch the facade render this year before repainting. Would this insulating render be good on the bay to improve heat retention? Will it be happy bonding to existing NHL render?

Cornish Lime Changed status to publish March 16, 2022
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Thanks for getting in touch.  Insulating render should be absolutely fine.  If you are using it externally you will need a finish coat but internally this isn’t necessary.  Perhaps get in touch when you’re ready and email some images through, we can take a look for you.

Cornish Lime Changed status to publish March 16, 2022
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