Why should we insulate our homes?


Insulation acts as a barrier for heat loss and heat gain. Homes lose heat through the roof, ceilings, walls and floors. In most cases, insulation is the most effective way to make your home more energy efficient and save on your heating bills.  The four main benefits from insulation within a home are:

●       Save money on energy bills
●       Reduce energy usage and reduce the carbon imprint
●       Reduce the dependence on heating and cooling systems
●       Increase the comfort of your home 

Along with insulation, there are simple steps that can be taken to help with energy loss across your home:

  • Stop energy loss by fitting a draught excluder on all doors interior and exterior, including your letterbox.
  • Ensure that if your window has cracks or crevices around the window frames that they are insulated with filler.
  • Double glazing windows will provide an immediate saving on your heating bills. 
  • Use curtains and blinds when the evenings turn dark to trap the warm air – if your curtains have a blackout or thermal backing this will increase their effectiveness.
  • Check and fill any floor gaps you may have between the skirting board and the floor – look at floor insulation as a option if there is still draughts being felt.
  • Attic insulation is a must as most of your heat is being lost through your attic/roof.
  • Internal & external walls or cold walls may require drywall to avoid the loss of heat.
  • Ensure your hot water tank has a jacket that is at least 80mm in thickness.




  • Insulation is one of the key areas to save energy and reduce your energy bills so what are the priority areas you should start with.  The experts in Murdock Builders Merchants recommend starting from the top down – so the from the roof to the foundations or from the attic downwards.

    Attic Insulation:
    The first area that you should look at insulating, if not already completed is the attic.  Pay particular attention to the spaces within your attic that appear to be unfinished like the far corners.  Insulate the floor and roof of your attic.  The type of insulation that is used in attics are loose-fill or batt insulation.  Before you start the insulation process, check if there is any air leaks and seal them up. 

    Interior Walls:
    Insulation for interior walls is referred to as internal dry-lining.  The process involves dry-lining warm-boards on the internal walls of your home, normally the outside walls. Like with Attic and exterior insulation all cavities must be filled to ensure the maximum can be achieved from your investment in insulation.

    Exterior Walls:
    If after completing insulation within your attic and your home still feels draughty then you should look at the exterior wall options. Exterior wall insulation can be expensive and normally involves hiring a contractor that specialises with this type of insulation. 

    Murdock Builders Merchants branches provide a full range of Isover insulation.  ISOVER is a global manufacturer of sustainable insulation solutions for thermal, acoustic and fire performance in new build, renovation and industrial applications. Click here to view our insulation options or call into one of our branches and speak to one of our team.

    Along with insulation Murdock Builders Merchants have one of Ireland's widest range of building products from Building Materials, Bespoke Timber, Floors, Doors, Roofing, Hardware and many more.  For further information on our range of products please contact us or call into one of our branches.