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Home Renovation: insulation on a north facing wall

Most older properties built before the 80s are renowned for having poor insulation and leaking out all the energy and heating that it costs you so much to pay for with a number of weak points for heat to escape the first weak point is the roof, the second comes from the north-facing walls.

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Most older properties built before the 80s are renowned for having poor insulation and leaking out all the energy and heating that it costs you so much to pay for with a number of weak points for heat to escape the first weak point is the roof, the second comes from the north-facing walls. This part of the frame indeed never sees the sun directly. To address this weakness and generate energy savings on the heating bill, it is best to improve the insulation of the walls. But how to undertake this specific thermal renovation?

Isolate from the inside

Think that the thick walls (stone, brick) are sufficient to insulate a home is a misunderstanding. Their thermal insulation capacity decrease with time: in cold or warm period, the walls are room temperature and do not provide proper insulation function.

Often these cold walls appear condensation in the wettest parts. This is, most often a symptom of poor insulation but sometimes problematic fault thermal bridge or lack of ventilation .

The most common and most economical solution is to add insulation on the inside wall. Its realization is very accessible, including ease of installation.

For the choice of the insulation thickness is a key parameter. The higher the heat flux is reduced, there is less loss of heat (in the winter) and less parts warm in summer. Therefore, a high thermal resistance of the insulation is required. The thermal performance of insulation is expressed exclusively in the form of a thermal resistance R measured in SI units of measurement (mē K / W) and on the label of the Acermi certification of the product. Moreover, this indicator is higher, the better the thermal performance.

However, this interior insulation technique has two major drawbacks : it does not treat all thermal bridges (L) and loss of space in the room.

To save space, you might be tempted by insulating category Thin Reflective Products (PMR) or Thin Reflective insulation (IMR). But these are not miracle products. They may, however, play a role in further isolation precautions respecting installation to avoid certain disorders (risk of condensation).

Insolate from the outside

Sometimes you're constrained by space or unable to release the part to insulate your internal walle. The exterior insulation is an excellent alternative.

You can develop a true thermal envelope to the frame without interruption so as to greatly reduce thermal bridges, and limit catches or heat loss. The structure is also protected against aging and air infiltration and moisture.

Techniques and materials for this type of insulation are very varied with a relatively similar efficacy. what counts above all is mastering the installation, because external insulation may alter the look of the property planning permission may be required, check with your local council before you start the process .

Remember that in the context of the sale of a property, the valuation is also made on the consideration of thermal performance, and a well-insulated house is preferable for new home buyers.

Do not block the ventilation grilles high and low existing work in isolation. Also sure to seal the electrical switches and inlet vents often source , Whatever the technique used to isolate your north facing wall, it is best to hire a professional who knows the entire operation to avoid defect , approved trader can help you in your search for a trademen who has vetted and approved to provide an excellent service.