Supacloser Cavity Closer


Our Supacloser EPS (Expanded Polystyrene) multi-width cavity closer is a high-performance insulation solution for all types of construction projects. It is designed to fit into cavities of various widths, making it ideal for both new builds and retrofits. Made from high-quality, durable Expanded Polystyrene, this cavity closer ensures a tight seal to prevent heat loss and drafts, providing energy savings and comfort all year round.

The Supacloser EPS multi-width cavity closer is easy to install and can be cut to fit the exact size of the cavity, ensuring a perfect fit every time. Its unique design allows it to be easily manoeuvred into tight spaces, making it ideal for use in both residential and commercial buildings. The EPS material is also lightweight, which makes it easy to handle and install.

Features & Benefits:
  • Supacloser EPS Cavity Closers are an easy way to achieve building regulations compliance when closing cavities where cavity widths are unknown.
  • Available in 2 profiles to fit cavity widths: 50mm – 100mm and 100mm – 150mm
  • Innovative multi-width design
  • Easy to install with simple cut to size indicators
  • Fully ridged PVC cavity closure
  • Prevents cold bridging
  • Suitable for use in both new build and refurbishment
  • Reduces risk of condensation, mould & moisture migration across the cavity
  • Can be used on timber frame constructions
  • Overcomes cavity width variations
  • Complies with relevant building regulations and British Standards
  • Thickness: 25mm
  • Thermal conductivity: 0.030 W/mK
  • Thermal resistance: 0.83 m2K/W
  • Compressive stress at 10%: CS(10)70 – 70kPa)
  • Compressive creep: CC(2/1.5/50) 0.3 σ10
  • Dimensional stability @ 23°C / 50% RH: DS(N)5
  • Dimensional stability @ 70°C / 90% RH: DS(70, 90)1
  • Water vapour diffusion resistance factor μ: 20 – 40μ
  • Water vapour permeability δ: 0.009 – 0.020 mg/(Pa.h.m)
  • Weight: Per 10 Pack – 100mm (9kg) – 150mm (12kg)
  • Colour: Extruded uPVC (Grey) Polystyrene Insulation (Grey)

BS EN 13163:2012 + A1:2015 – Thermal insulation products for buildings – Factory-made expanded polystyrene (EPS) products.

Supacloser Cavity Closer
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