Insulated Construction Systems

Raft Therm
  • Raft Therm is a fully insulated foundation system that can achieve U values to meet passive house standards.
  • Raft Therm an efficient solution that delivers build programmers on time, concrete foundations and floors are poured simultaneous while rising walls are eliminated.
  • Raft Therm suitable for use in conjunction with various wall types including masonry, timber frame, light gauge steel and ICF.
  • Raft Therm components are pre-formed in our factory requiring minimal preparation on site.
  • Raft Therm is comparable in price to traditional foundations offering exceptional value with superior thermal performance.
  • Raft Therm utilizes the thermal mass of concrete by absorbing and retaining heat when the building is warm then releasing this heat back into the building as it cools thereby maintaining a more  constant temperature.
  • High scoring Psi value reduces risk of condensation occurring at floor/wall junction.
  • Suitable for use with underfloor heating systems.
  • A permanent and sustainable insulation solution that requires no maintenance, unlike walls and roofs it is virtually impossible to retrofit insulation underneath or around foundations and floors.
  • Effective at conserving energy by drastically reducing heat loss through the floor and cold bridging through the rising walls
  • Suitable for residential and commercial applications.
  • CE marked- manufactured to harmonized technical specification EN 13163:2012+A1:2015.
  • Makes commercial sense because it delivers lower U and Y values in the ground floor structure thereby reducing the requirement to score costly SAP points elsewhere in the structure.
  • Lightweight and easy to handle with no specialized equipment required for assembly.

Castle Forms

Insulated Construction Products

Castleforms Ltd manufacture and supply a wide range of insulated construction products and systems:

  • Raft Therm - Insulated Foundation System
  • EWI - Soltherm - External Wall Insulation
  • Integraspec ICF (Insulated Concrete Formwork) Wall System
  • Polystyrene Blocks - Supplied & Cutting Service Available
  • Insulation Sheets - Cut to Order - Flat & Curved
  • Bespoke Cutting Services Available
  • Floor Insulation System