Don’t skimp when carrying out insulation work, the more the merrier, generally speaking. Use a thickness of at least 30 cm in your loft (rolls of insulation or equivalent in rigid panels) and even more if your budget and the layout of the building allow.

“Insulation” always goes hand in hand with “ventilation”. The better insulated a building, the more efficient its ventilation needs to be.  Otherwise it becomes unhealthy and deteriorates because of the potential accumulating damp. When insulating your loft, make sure that you don’t cover up existing ventilation. Ventilation is provided for in the eaves of the roof and/or tile vents.

Insulation is the most profitable of all energy investments. This profitability is improved still further by the grants available. https://www.seai.ie/grants/home-energy-grants/

There are many simple yet effective ways to insulate your home, which can significantly reduce heat loss while lowering your heating bills. Even little fixes around the home can mount up to significant savings in your energy bills.