Types of Insulation

Please see brief descriptions of types of Insulation systems and the varies products types used in the systems.

  External Insulation:

External Wall Insulation (EWI) is a composite cladding system comprised of suitable insulation and waterproof coating which is applied to all the external walls of a building. The application of EWI reduces heating bills, and consequently carbon emmisions.

Installation should be only peformed by trained and "NSAI Agrément Registered Installers".
 
  Blown Cavity Wall Insulation:
About 33% of the heat loss from an anverage homes is through the walls. Blown Cavity Wall Insulation can reduce this heat loss and assist in meeting the 'U-Value Requirments' of the Irish Building Regulations by blowing an insulation product, Expanded Polystyrene Bead (EPS), Glass Wool Fibre or Rock Wool Fibre into a suitable masonry wall cavity (wall constructed with an inner and outer leaf).

The cavity wall is injected with insulating materials by drilling holes in the external (or internal prior to finishing) wall. Holes are generally of 22-25mm diameter and are "made good" after injection. Each hole is injected in turn, starting at the bottom until the cavity is filled.

Installation should be only peformed by trained and "NSAI Agrément Registered Installers".
 
  Blown Loft Insulation:
About 25% of the heat loss from an average home is through the roof. Blown Loft Insulation can reduce this heat loss and assist in meeting the insulated the 'U-value requirements' of the Irish Building Regulations by blowing an insulated product, Expanded Polystrene Bead (EPS) or Cellulose Fibre into lofts. Applicable NSAI Agrément Certificate should be checked for full details of each system and restrictions to their use.

Installation should be only peformed by trained and "NSAI Agrément Registered Installers".
 
Product Types
  Expanded Polystyrene Bead Systems (EPS):
EPS is manufactured from expanded polystyrene material whish is injected into cavity walls in loose bead form together with a binding agent. It is available in standard grade as a White Bead or as a grphite enhanced Grey Bead which provides an improved thermal conductivity capability. Fire retardants may also be included during the manufacturing process
depending on the end use of the product.
 
  Glass Wool Fibre System:
Glass Wool Fibre consists of granulated glass wool treated with bonding resin and inert water repellent during manufacture. It is available as a White Wool - manufactured from surplus Glass Wool Fibre insulation products.

 
 
  Rockwool System:
Rockwool is a granulated stone-based insulation, manufactured from rockwool fibres (melted volcanic rocks, spum to produce a wool-like fleece) which are treated with an inert water repellent during manufacture.

 
 
 
Cellulose Fibre System:
Cellulose Fibre is manufactured from recycled newsprint which is shredded to be suitable for installation by blowing. Controlled quantities of boric acid and other inorganic fire retardents are added during the manufacturing process.