Wall Insulation.ie logo supplying external insulation systems in the Dublin area
External Wall Insulation on a terrace of houses

Heat your home, not the atmosphere

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Call us on: 01 442 8345
Contractor ID:11976

Frequently asked questions about External Wall Insulation

This is a selection of queries which we are commonly asked by householders about the application of External Wall Insulation systems to homes. If you have a query which is not listed here please contact us. We would be delighted to hear from you.

What type of finishes can I have?
We have the widest range of finishes available on the market today. We offer sand and cement, wet dash and dry dash. We can even offer a brick finish, where you can have a real brick facade over external insulation. 

What type of insulation do you offer?
We supply and fit approved systems using Expanded Polystyrene (EPS), Polyisocyanurate (PIR) and Mineral Wool as the insulant layer in an external insulation system.  Again this is the widest range of certified insulants available in Ireland.

How do I get a grant?
It is possible to receive a grant for External Insulation under the Sustainable Energy Authority of Ireland, Home Energy Saving Scheme.  Naturally there are detailed rules which cover what SEAI will and will not grant aid. All of this is explained on their website, in depth.  Basically if you do a good job of improving your home insulation you will get a grant.  But before you spend any money you should seek preliminary approval from SEAI via this webpage

Are Wall Insulation registered with SEAI? 
Yes we are registered with SEAI as Contractor number 11976.  You can look us up here. To understand how SEAI and NSAI certify External Wall Insulation Contractors click here.

I live in an estate, would my house look different from the others? 
Many of the houses we have done are in developments with matching houses. The finish of External Wall Insulation can be chosen to match the neighbours. See here for examples.

What kind of wall insulations are there?

There are three types of wall insulation, internal, cavity and external.  See this link for more details.

How does external insulation work?

If you externally insulate a masonry wall the theory is that you only heat the block leaf from cold once i.e. when you move in. From then on there will always be a reasonable level of residual heat. This is because the thermal mass of the walls absorbs heat and releases it slowly leading to a more even temperature over a complete heating cycle. Plus you automatically capture and store the solar gain, smoothing out the day and night (diurnal) heating cycle.

In Ireland we often turn the heat off at night leading to very cold rooms during the night. Then we give a blast of heat in the morning which has to reheat the fabric of the house as well as the occupants. This is a very inefficient process which damages the fabric of the house as well as waste energy.

 

With external insulation you economically keep your home at a steady temperature all year long. 

 

How much CO2 will I save?

This is a tricky question to answer as it depends on how you are currently heating your house and what level of insulation you currently have.  But figures from the British Energy Saving Trust (Which is a non profit charity) suggest a saving of 2.1 tonnes of CO2 for a typical 3 bed semi-detached house.  Each year!  With the proposed tax of 20 euro per tonne of CO2 in the commission for taxation report there is a new reason to go for External Insulation: Avoiding this tax alone would pay for most domestic systems.

 

What are the other advantages of using External Wall Insulation?