Internal Wall Insulation: Pros, Cons, and Installation Tips
If you're looking to improve the energy efficiency of your home and save on heating bills, internal wall insulation is worth considering. However, it's important to approach it with care, as poorly executed insulation can cause issues such as damp and condensation.
Internal wall insulation involves applying insulation to the interior face of external walls, usually in solid stone or brick homes built before the 20th century. This insulation method can be cheaper than external wall insulation, but it also reduces valuable floor space and can be disruptive during installation. So, it's important to make sure it's the best insulation solution for your home.
Type of installation
There are four main methods of installation, with building a new stud wall being the most common. However, it can be disruptive and require the removal and re-fixing of items such as switches, radiators, and kitchen units.
How much does it cost internal wall insulation?
The cost of internal wall insulation can range from £75to £145 per square meter, depending on the type of insulation and the condition of the existing wall. Up to 60% of the cost will be labor, so skimping on insulation thickness to reduce costs is not recommended.
Internal wall insulation can cause damp and condensation if not installed properly. A vapour control layer needs to be installed to prevent damp penetration, and cold bridges need to be covered with insulation to avoid the formation of condensation.
There are three basic methods of installing internal wall insulation, which involve checking the wall's condition, undertaking remedial work, and choosing the preferred installation method.
In summary, internal wall insulation can improve the thermal efficiency of your home and save on heating bills. However, it's important to approach it with care, as it can cause issues such as damp and condensation if not installed properly. By following the proper installation methods and addressing airtightness and heat loss, you can make the most of internal wall insulation and enjoy a more energy-efficient home.
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