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The installation of types of insulant materials

Many different types of materials have insulating properties. Both natural and man made insulation are available for application to the surfaces in your home that require a thermal insulation barrier.
Below you will find a list of the different types available for external wall insulation, cavity wall and attic or roof insulation. Some are more suitable and cost effective for the purpose of creating a thermal insulation barrier.

Loose fill insulation materials which are blown into the loft are usually mineral wool or cellulose fibres, installation is a specialist job which should be left to a contractor. The materials generally have the same insulation value as rolls of loft insulation and should have a minimum finished thickness of 200mm (8in) - most roof joists are only 100 to 150mm (4 to 6 in) so some means of increasing the depth of roof joist may be necessary (i.e. baton of timber or other material attached to surface of joist). DIY loose-fill loft insulation materials, such as vermiculite and mineral fibre, are sold in bags and can be poured between the roofing joists to the recommended depth.

Loose fill fibre

SHEET INSULATION

Suggested Applications

• Sheet Insulation can be used in a wide range of applications for the purposes of insulation, noise and vibration reduction and to protect against damage
• 1st fix insulation. I.e. during construction of a new building or external wall - insulation board such as Kingspan panels are installed into cavity of wall space.
• Tank and Water Heater Insulation ( prevents freezing of header tank in winter )
• Underfloor Insulation (thermal & noise)
• Vibration dampening and isolation
• Pool and Spa insulation lining and covers
• Vehicle bonnet, ceiling, boot and undercarpet lining
• Concrete Insulation Blankets for curing

BLOWN FIBRE INSULATION

Fibre insulation is available as loose fill or batts. Loose fill is generally fiberglass, cellulose, or rock wool that is blown into wall and attic cavities. It can provide better coverage than batts. R-values per inch for loose fill insulation are R-2.2 for fiberglass and R-3.2 for rock wool or cellulose. Rockwool insulation which comes in rolls is the chosen method for providing attic or roof' insulation - a number of different manufacturers on the market including 'Rockwool' TM have glass fibre insulation which rolls out inbetween the ceiling joists in your roofspace.

Even if you have some insulation in your attic space the amount is normally 100mm and can be topped up with 200mm further to provide a total of 300mm which increases the overall energy and heat retention of your home. This also ensures you insulation improvements are inkeeping with the SEAI grant scheme criteria when you insulate both walls and attic -

Our contractors using special equipment usually blows loose fill insulation into place. Some hire companies will rent you the equipment to blow the insulation into your own attic, it is not recommended to attempt blowing insulation into walls yourself. An experienced contractor is needed to avoid damage to the wall structure. There are several ways to incorporate foam insulation - such as polystyrene, polyisocyanurate or polyiso, and polyurethane - into concrete blocks. The hollow cores of concrete blocks can be filled by pouring and/or injecting loose foam beads or liquid foam. ** See our section below on blown foam insulation or spray foam insulation

Blown in insulation .

Batt insulant material

SPRAY FOAM INSULATION

The Spray foam Insulation System is a soft, flexible spray foam insulation that gives up to 50% greater energy savings when compared to some conventional insulations. When sprayed in place Icynene spary foam expands completely filling all cavities and voids creating a sealed building envelope which eliminates air leakage/infiltration. Air leakage/infiltration accounts for up to 50% of heat loss from a building. Unlike other bio based and urethane foams, Icynene is 100% water blown and therefore contains no harmful agents, volatile organic chemicals, HCFCs, HFAs, HFCs or formaldehyde.
It does not shrink, sag or settle. Icynene® adheres to all construction materials and is the perfect insulation for walls, attics, ceilings and floors.
The spray foam system is available for the above applications in 3 grades:

• .1. Spray Foam Insulation - 100% water-blown spray insulation
• 2. Pour Foam Insulation - Icynene's pour fill variation
• 3. Goal Seal 400 - New, portable, soft foam insulation

Spray foam insulation application .

Pour foam insulant material

Concrete Block Insulation Some block makers coat polystyrene beads with a thin film of concrete. The concrete serves to bond the polystyrene while providing limited structural integrity. The most common group of ingredients are expanded polystyrene mixed with Portland cement, sand, and chemical additives. These make surface-bonded wall assemblies with a wall R-value of R-1 per inch thickness. Polystyrene inserts placed in the block cores increase the unit thermal resistance to about R-2 per inch.

EXTERNAL WALL INSULATION

Insulation: With this system the insulation layer consists of non flammable expanded polystyrene panels measuring 100x50cm. The panels are available with or without a tongue and groove lip in thickness ranging from 4 to 6cm. A number of different manufacturers have insulation panels available including Kingspan panels, rockwool panels and xtratherm panels to name but a few. Application: The polystyrene panels are applied direct to the substrate with a specially formulated adhesive plaster. Once the fixing adhesive has dried, the panels are again plastered with the same mortar into which glass fibre reinforcing mesh is imbedded and covered.
The finished product increases the overall dimmesions of your home with window sills and window reveals finished to meet existing new wall 'depth'. Render application (top coat) is available in a range of colours. Our site survey team assess all ancilliry works to move services such as waste water or other features to fit new finished wall depth.

A cross section of External wall insulation system

For further details on all of the above insulation systems for your home or business contact our insulation survey and installaiton team. HES approved and NSAI approved contractors for external wall insulation. Insluation Grants available subject to the criteria set down by the SEAI (formally the SEI) - which our insulation materials and contractors are approved.
Click here for insulaiton systems advice

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