Limelite Renovation Plaster

To use or Not to use...

We get a lot of queries about Limelite Renovation Plaster.  People ask us whether it is suitable to use on breathable old walls.

In our view, avoid it like the plague.  Looking at the technical specs for the stuff, it specifically says:

"It is designed to have similar properties to a 1:1:6 cement:lime:sand plastering mortar, but with Perlite lightweight aggregate replacing the sand. Man-made fibres are incorporated into the mix to control shrinkage and improve flexural strength"

Further down in the spec sheet it says:

"Provides a barrier against salt transfer"

"Appearance as supplied: Fine grey powder"

We have seen this stuff used on many occasions.  It is horrible stuff - it traps moisture into walls, and has a portland cement content - heaven knows why anyone would call something a 'renovating' plaster if its got cement in it.  Every time we encounter it, we have to remove the damn stuff, and dry the walls out behind it. These same walls are then re-plastered using proper lime plaster, and the walls stay dry. This is hard proof of the fact that it is NOT breathable as claimed by the manufacturer, and should NOT be used in 'renovation' or proper restoration products. Why a manufacturer tries to make snake oil products like this I have no idea - it would be far easier just to stick some good honest hot lime in a bag and mix it with fine sand with instructions to mix and plaster the wall. 

Limelite Renvoating Plaster appears to contain cement - the technical spec says it does. Why? To make it set quickly of course - and then it won't breathe.

I find it rather amusing that they go on to say:

"Limelite Renovating Plaster is used for plastering most traditional background materials during renovation work and also following the installation of a new damp-proof course or system."

"Durability: Providing the installation of the damp-proof course and application of the plaster has been carried out correctly, Limelite Renovating Plaster should remain effective as long as the damp-proof course or system itself."

Really!!!!

So they are actually producing a 'salt retardant, renovating plaster that works for the damp proofing wallys'.  Why else would you state in your technical specs that it can be used following the installation of a totally unwarranted and never needed 'damp course' or even 'damp course system' - yup, its designed for the PCA  Damp Wallys.  

Got news for you folks - Limelite is rubbish - dont use it - avoid it like the plague - and use good, honest lime plaster - which doesn't need a sales and marketing angle of 'renovating plaster' - lime plaster is used in restoration, not renovation.  Renovating is for the pca damp wally.  Restoration is for real people restoring old breathable houses to breathability and doing it properly, not with a 1:1:6 cement lime mix that is the bane of anyone's life working on old houses.

So..

Limelite Renovating Plaster gets my thumbs down as a product - its rubbish in my view and should never be used. If you do - you'll end up with wet walls. Just like it says on the tin - it will be as effective as the damp course system - in other words, its compleete and utter rubbish and shouldn't be used.

 

 

 

 

 

 

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