ProofTherm Insulating Render/Plaster

A high-performance, breathable, insulating, mineral render/plaster by ProofShield. Proofshield System is a range of high-performance insulating building materials which includes insulating render, insulating plaster, and insulating screed. ProofTherm can be used as part of an insulation/facade system on new builds or as a useful thermal upgrade measure for older properties, particularly where natural, breathable materials are beneficial. It is supplied in 15kg bags to be mixed with water on-site and applied as a simple render or plaster base coat that will then be finished off with a decorative skim coat.

ProofTherm insulating render/plaster provides multiple benefits in a single product. It can be used as a stand-alone insulation upgrade on external and internal walls, or as part of an insulation system on new build projects. It is particularly useful as an effective insulation measure on older properties due to its high vapour permeability which allows the building to breathe, maintaining a healthy environment free from dampness and mould.

ProofTherm Insulating Render | In Ireland get it from SMET

ProofTherm Insulating Render | In Ireland get it from SMET

ProofTherm is a breathable, insulating, mineral render whose primary components are cement, hydraulic lime, insulating aggregates, proprietary binders, and polymers. It is available in different formulas as an external wall render, internal wall plaster, and self-levelling floor screed.

A single 20mm coat of ProofTherm external wall render applied to a bare masonry wall will increase its thermal resistance by 250%.  All of the ProofShield products are manufactured to the highest European Standards and are formulated for long-term performance in Northern European climates.

Benefits of ProofTherm Insulating Render/Plaster

  • Highly effective insulation
  • Breathable: For a healthier living space
  • Recognised energy-saving measure
  •  100% natural mineral render. No VOC’s
  •  Fireproof
  •  Acoustic insulating
  •  Hand or machine application
  •  Thermal comfort: the Increased thermal mass of walls means the home holds its heat in winter and remains cooler in summer.

Related Downloads


TDS ProofTherm Insulating Render Plaster


ProofTherm Application Guide


Proofshield Thermal Render System Brochure


SMET Render and Plaster Product Selector


Technical Details for ProofTherm Insulating Render/Plaster

ProofTherm Insulating Render_Plaster_Technical data

ProofTherm Insulating Render_Plaster_Technical data

Available in 15 and 20 kg bags.

Check out the other products in this ProofSheild Thermal Range, ProofDeco – a Silicon Enhanced Mineral Render, and for screed Lightweight Insulating Screed, ProofBase Universal Acrylic Primer

ProofDeco is a Silicon enhanced, mineral render coating designed to provide a tough, decorative, waterproof finish on a wide range of surfaces internally and externally and is the perfect façade finish for ProofTherm insulating render.

ProofBase Primer is the perfect preparation coat for all surfaces prior to the application of ProofTherm Insulating render or plaster both externally and internally. It provides suction control and adhesion.

ThermScreed Insulating Screed is an ultra-lightweight screed that can be used at thicknesses between 15mm and 150mm to provide thermal and acoustic insulation.

Professional Render Solutions from SMET features in Northern Builder

Have a look at the Lidl bauprotec render systems SMET delivered to Lidl Macroom Cork, Lidl Lincolnshire, Westwickham Lidl, Lidl Hull, Glenageary Lidl, Lidl Barnsley.