Thermal Lining Paper Problems

When it comes to renovating and insulating older homes, like Edwardian terraced houses, homeowners are often faced with unique challenges. One particular method of insulation that has garnered attention is the use of thermal lining paper. But does it work? And if so, to what extent?

The Problem

Older homes, particularly those built in the early 20th century or before, were constructed with solid walls and no cavity. This means that traditional methods of insulation, like cavity wall insulation, are often not viable. Such homes, with their north-facing walls, become notably cold during winter, contributing to heat loss.

For instance, in homes with significant window space like bay windows, there are doubts over the effectiveness of such insulation techniques. Added to the mix is the desire to retain original features such as coving without compromising on their aesthetic value.

Thermal Lining Paper: A Solution?

Several homeowners have considered using thermal lining paper as a solution to these insulation challenges:

1. Cost-Effective: Compared to reboarding and plastering, thermal lining paper is a relatively low-budget option.
2. Wall Imperfections: The lining can serve a dual purpose. Not only does it provide a layer of insulation, but it can also hide wall imperfections.
3. Warmth: Some users reported that walls treated with this paper are warmer to the touch.
4. Sound Insulation: Though minimal, there’s a potential added benefit of sound insulation.

Limitations and Concerns

1. Thickness: Insulation effectiveness depends on transmissivity and thickness. Wallpaper, being thin, might not provide significant insulation benefits.
2. Breathability: Older houses were constructed to “breathe.” Therefore, using non-breathable materials could potentially trap moisture, leading to problems like damp and mold.
3. Flammability: There are concerns about the flammability of some types of lining papers, which means homeowners might have to consider additional protective measures like fire retardants.

Alternative Approaches

1. Insulated Plasterboard: A suggestion was to use insulated plasterboard. However, this might not be suitable for homes with solid walls, as it can prevent the walls from breathing.
2. Natural Materials: Materials like wood fiber, breathable lime plaster, and suitable paints are recommended for older homes, helping them breathe.
3. Thermal Imaging: Using a thermal imaging camera can help homeowners identify areas of heat loss, which can then be addressed.
4. Thermal Paint: Some homeowners have had success using thermal paint as an undercoat, which makes walls feel warmer.

Conclusion

While thermal lining paper might offer a solution for some homeowners, it’s essential to weigh the benefits against potential issues. The age and construction of a home can dictate the most effective insulation methods. As always, it’s advisable to consult experts and consider all available options. For older homes, preserving their unique character while ensuring comfort and energy efficiency can be a delicate balance.