Internal wall insulation, also known as internal wall cladding or internal insulation, is a method of insulating the interior surfaces of external walls in a building. This approach involves adding an insulating layer to the inside of exterior walls to improve thermal performance and energy efficiency.
Internal wall insulation is typically used when adding insulation to the exterior of the building is not feasible or when there is a desire to preserve the external appearance of the structure. Here are the key aspects of internal wall insulation:
- Improved Thermal Performance: The primary purpose of internal wall insulation is to reduce heat loss through the walls. By adding insulation to the interior surfaces, it helps keep the interior of the building warmer in the winter and cooler in the summer, resulting in energy savings and improved comfort.
- Reduced Energy Bills: Like external wall insulation, internal wall insulation can lead to significant energy savings by reducing heating and cooling costs. It contributes to a more energy-efficient building, which is beneficial for both homeowners and the environment.
- Aesthetic Preservation: Internal insulation allows the preservation of the external appearance of the building. This can be especially important for historic or architecturally significant structures where altering the exterior appearance is not desirable.
- Condensation Control: Properly installed internal wall insulation can help prevent condensation and moisture issues inside the building by creating a warmer and more stable internal wall surface.
The process of adding internal wall insulation typically involves the following steps:
- Preparation: The interior surfaces of the external walls are prepared by cleaning, repairing any defects, and removing fixtures, such as electrical outlets or switches.
- Installation of Insulation Material: An insulation layer is added to the interior wall surfaces. Common insulation materials used for this purpose include rigid foam boards, mineral wool, or even aerogel blankets. These materials are secured to the wall using adhesive or mechanical fixings.
- Replastering: After the insulation layer is in place, the walls are replastered or dry-lined to provide a smooth and finished surface. The final finish can be painted or decorated as desired.
- Reinstallation of Fixtures: Electrical outlets, switches, and other fixtures are reinstalled in their original positions on the newly insulated wall surface.
Internal wall insulation is suitable for various types of buildings, but it’s particularly beneficial for retrofits in which adding external insulation is not an option. It’s important to note that internal wall insulation can result in a reduction in room space, as it adds thickness to the interior walls.
Additionally, it’s crucial to consider potential implications for services like electrical wiring, plumbing, and HVAC systems, as they may need to be relocated or adjusted during the installation process.
Proper installation and compliance with local building codes are essential to ensure the effectiveness and safety of internal wall insulation