Warmcote Insulated Lime Plaster 25kg

Warmcote™ has been developed to offer insulation for traditional, historic buildings where the use of modern systems would be inappropriate and potentially damaging.

Used in conjunction with sustainable, breathable boards such as cork, wood fibre or sprayed hemp, Warmcote's traditional lime plaster mix can make a significant improvement to the living environment of a home, as well as reducing the energy bill and the carbon footprint. The original drive behind its development was to offer some thermal benefit to traditional 'hard to insulate' buildings, particularly timber framed buildings where it may be aesthetically undesirable to apply boards to the exterior. It is breathable, flexible, very lightweight and can be applied at practically any thickness. The best achieved so far is 8" in two passes. Warmcote is incredibly useful if you are making good damaged clay lump, cob, masonry or daub.

Warmcote is made with lightweight minerals as the aggregate in place of sand. The results of testing so far put the Lambda value of Warmcote at around 0.125 W/mK. That is about five times more thermally efficient than a standard lime plaster, and eight times better than sand and cement.

Warmcote is a dry ready mixed non hydraulic lime plaster for internal or external use. It is packaged in 25kg recyclable LDPE bags.

MIXING: Pour no more than 7 litres of clean water into a mixing tub. Gently add Warmcote, mixing with a plasterer's paddle. Do not add all of the dry plaster at once, bring gradually up to the required consistency.

If necessary, add more water. There is no 'right or wrong' amount of water to add, it can be used at whatever consistency best suits the job, be it thinned down for spraying, or thick enough to hand trowel. Once the Warmcote is uniformly mixed, gently add all the fibres from the small bag and mix thoroughly. Ensure that the background is clean and free from loose and friable material. Lightly damp down, avoiding a film of water on the surface. Warmcote can be used for the full thickness of plaster from dubbing out to a polished finish in one, two or multiple coats on most backgrounds. It also works very well as a scratch coat beneath a Limecote finish. We would not recommend its use as a finish on timber frames or backgrounds where background movement is a factor.