External Wall Insulation
Insulation fixed outside the structure and finished with render — the whole wall works as one warm, sealed envelope.
One System, Built to Work Together.
Insulating outside the wall keeps the structure itself warm, kills thermal bridges, and adds efficiency without stealing floor area — the approach behind EIFS and external insulation systems worldwide.
EPS boards bonded and dowelled to the facade take a reinforced base coat and decorative render, turning the insulation itself into the finished face of the building.
- New residential and commercial facades
- Energy retrofits of existing buildings
- High-rise envelope upgrades
- Compounds and villa developments
- Public and institutional buildings
Layer by Layer.
- 01
Wall Substrate
Masonry or concrete checked, cleaned and levelled where needed.
- 02
Adhesive Layer
Cementitious adhesive bonds the boards to the prepared wall.
- 03
EPS Insulation Boards
Boards fitted tightly, joints staggered, mechanically dowelled to the wall.
- 04
Base Coat & Mesh
A reinforced cementitious coat armours the insulation against impact.
- 05
Decorative Render
The textured, colored finish that faces the weather and the street.
01Kills Thermal Bridges
Wrapping the outside insulates columns, slabs and beams that internal insulation misses.
02Cuts Cooling Bills
A continuous envelope reduces HVAC loads season after season.
03No Lost Floor Area
All the insulation lives outside — apartments keep every square metre.
04Facade and Insulation in One
The rendered system is the finished architecture, not a hidden extra.
Common questions about this system.
Where is the External Wall Insulation system used?
It is typically used for new residential and commercial facades, energy retrofits of existing buildings, high-rise envelope upgrades, compounds and villa developments and public and institutional buildings.
Which Insutech products are used for external wall insulation?
The recommended system is built with EPS 25kg/m³, EPS 30kg/m³, EPS 35kg/m³ and Insu Foam — full details for each are on the recommended products cards on this page.
How is the system installed?
The system is installed in 5 stages: wall Substrate, adhesive Layer, EPS Insulation Boards, base Coat & Mesh and decorative Render. The system build-up section on this page illustrates the full sequence.
What are the main advantages of the external wall insulation system?
The key advantages are kills Thermal Bridges, cuts Cooling Bills and no Lost Floor Area — each is explained in the Key Benefits section on this page.