Zenova IR is an advanced thermal insulating render for internal and external walls, designed to reduce energy costs and improve comfort. Using innovative ceramic microsphere technology, it lowers heat transfer, reflects solar and infrared radiation, and prevents condensation and mould formation.
With straightforward application and proven performance, Zenova IR is a cost-effective alternative to traditional bulky insulation materials.
Key Benefits
Provides thermal insulation for warm and cold climates
Reduces heating and cooling bills by up to 30%
Anti-condensation properties prevent damp and mould
Durable protection against corrosion, salt, wind, rain, and chemical vapours
Eco-friendly, water-based, non-toxic, odourless and non-flammable
Easy application by trowel or spray, suitable for new build or retrofit projects
Backed by a 10 Year Warranty when applied with Zenova Primer
Ideal ApplicationsDomestic properties, commercial buildings, schools, and retrofit projects seeking fast, affordable, and long-lasting insulation improvements.
Zenova IR Thermal Insulating Plaster
Product Type: Thermal insulating plaster (single-component, ceramic microsphere-based)
Standards: Independently tested to BS EN 13823 (SBI):2020, BS EN 11925-2, ASTM C518-17
Intended Use: Internal and external wall insulation (timber, concrete, brick, plasterboard, render)
Physical Properties
Form: Paste consistency (ready-to-use, water-dilutable)
Colour: White (matt finish, can be painted over)
Packaging: 20L PE container
Coverage / Consumption: ~5L/m² at recommended 5mm thickness
Density: ~0.35 – 0.45 g/cm³ (approximate)
Thermal Conductivity (λ): ~0.021–0.030 W/mK (depending on thickness & substrate)
Drying Time:
Touch dry: 2–4 hours
Full cure: 24–48 hours (conditions dependent)
Operating Temperature Range: -20°C to +120°C
Storage Conditions: 5–35°C, protect from freezing and direct sunlight
Shelf Life: 36 months (sealed container, correct storage)
Application Guidance
Preparation: Surfaces must be dry, clean, and dust-free
Priming: Apply Zenova Primer (50–100 g/m², dries in ~1 hour)
Application Methods: Trowel or plaster spraying machine
Layering: Apply in thin coats; multiple coats only after previous layer is fully dry
Cement Additive Option: Mix 1kg Portland cement per 20L Zenova IR to create plaster-like consistency
Recommended Total Thickness: 5mm (can be applied as thin as 1mm depending on use case)
Application Temperature: Minimum +10°C; max. relative humidity 80%
Performance Characteristics
Reduces heating & cooling energy costs by up to 30%
Provides thermal reflection (infrared and solar radiation)
Anti-condensation (prevents mould, corrosion, and damp formation)
Strong adhesion to brick, concrete, and plasterboard
Non-toxic, eco-friendly, odourless, non-flammable
Suitable for both new build and retrofit insulation projects























