Technopol SA — Wall Insulation
PolykeyCavity Insulation
Two proven EPS wall insulation systems — Cavity Wall Insulation for double-skin brick walls, and Polykey Wall Insulation for robust cavity filling in demanding construction applications.
System 01
Cavity Wall Insulation
Precision-sized EPS boards designed to fill the cavity in double-skin brick or blockwork walls. They dramatically improve the thermal resistance (R-value) of external walls, reducing heating and cooling loads while meeting SANS 10400 Part XA requirements.

- Precision-cut EPS panels
- Fills wall cavities perfectly
- High thermal R-value
- SANS 10400-XA compliant
- Moisture resistant
- Double-skin brick walls
- Cavity blockwork construction
- Energy-efficient homes
- Commercial buildings
- Green building retrofits
System 02
Polykey Wall Insulation
The Polykey Wall Insulation system provides robust, high-performance insulation for cavity walls. Engineered for demanding construction applications with superior fit and thermal performance across the wall section.

- Robust EPS insulation profile
- Superior wall cavity fill
- Excellent thermal R-value
- SANS 10400-XA compliant
- Durable and moisture resistant
- Heavy-duty cavity walls
- Commercial construction
- Industrial buildings
- Energy-efficient projects
- Retrofit insulation
Technical Documentation
View or download full product specifications, brochures and data sheets
Technical Details
Cavity Wall Thermal Performance
Both Cavity Wall and Polykey insulation systems are precision-engineered from high-quality EPS to fill wall cavities exactly. The result is a dramatically improved thermal envelope that reduces heating and cooling energy consumption — compliant with SANS 10400 Part XA requirements.
Get a Quote
Ready to
Get Started?
Contact our sales team for pricing, availability and project‑specific requirements.