
Tackling the problem of solid wall insulation,
ThermoShell Internal and External Wall Insulation offers solutions
for upgrading the thermal performance of existing solid
walls.
Many older properties have external walls that are either
unsuitable for cavity wall insulation (often because the cavity is
too small) or have no cavity to insulate (solid walls). The so
called "hard to treat" walls still require insulating to reduce
heat loss, and the ThermoShell system provides the solution.
ThermoShell External wall insulation provides a high level of
thermal performance to the external shell of the property.
Available with rock mineral wool or expanded polystyrene insulants,
ThermoShell EWI allows you to upgrade the thermal performance of
the property with little disruption to the interior.
Benefits over Internal Wall
Insulation
- Externally insulated, so no disruption to occupants
- Meets current as well as anticipated future thermal
regulations
- Breatheable rock systems allow for the removal of water
vapour
- Durable and designed for the lifetime of the building
- Prolongs building life
- Aesthetically pleasing
- Low maintenance
- Extensive range of finishes and colours
Find out more about the ThermoShell External Wall Insulation
(EWI) System...
ThermoShell Internal Wall Insulation insulates your "hard to
treat" or solid external walls from the inside of the property,
meaning you can improve the thermal performance without affecting
its appearance.
Benefits
over External Wall Insulation
- IWI costs less to install than
external insulation
- IWI is easier to maintain than
external insulation
- No scaffolding is required
- The external appearance of the
building is maintained so it can be installed in conservation
areas
- Materials are readily available
- It can be installed on a
room-by-room, single façade or whole house basis, as part of a full
refurbishment plan
- Installation is not delayed by bad
weather
Find out more about the ThermoShell Internal Wall Insulation (IWI)
System...

The best of both worlds...
Knauf Insulation is the only company that can offer a Hybrid
System Solution for your property by incorporating both ThermoShell
External and Internal Wall Insulation systems.
Many existing properties may not be suitable for the use of the
EWI system on the front elevations due to planning constraints or
public right of way encroachment.
However, the rear elevations quite often do not have the same
constraints. Also, kitchens and bathrooms are often at the rear of
a property and these rooms are more suited to EWI (no need to
rip out exting kitchen or bathroom fixtures).
The ThermoShell systems are part of Knauf Insulation’s ‘Whole
House Approach’ to energy efficiency, ensuring that you always get
the best advice for any property.
Press Release on ThermoShell Hybrid
Solutions