Internal solid wall insulation

Internal solid wall insulation can cut your heating costs by helping to stop heat escaping through the internal walls of your property. Internal wall insulation involves fitting rolls or boards of insulation to your internal walls.

Heat flows in a net movement of hot to cold, therefore, heat will move to cooler spaces, so if you heat your living room the heat will escape through your internal walls as it is cooler outside. This air gradient will make your heating system work harder. Insulation works by decreasing this flow through effective resistance to the flow of heat. Insulation is rated by R-value, this means it is rated in terms of thermal resistance. The higher the R-value the greater the insulating effectiveness or resistance.

Pros and cons of internal wall insulation

Pros

  • Internal wall insulation is as a rule cheaper to install than external insulation
  • Will save you money on your heating bills
  • Keeps your home warmer in winter and cooler in the summer
  • It also helps to reduce condensation
  • If you have a house which is pre 1920 this is an option for you as you can not have cavity wall insulation. 

Cons

  • You will need to treat bare brickwork to eliminated any areas where air can escape 
  • Will make a room smaller by 100mm at the most
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