As windows and doors age, energy performance is necessarily lower. In this context, such a renovation project no longer becomes an expense item, but a real investment. Carpentry represents a significant part of a home’s heat loss and its replacement can sometimes allow a gain of 30% on heating, especially if your old windows are single-glazed.
Changing your windows and doors also improvessound insulation. Finally, changing your windows is also an opportunity to strengthen the security of your home with burglar-retardant glass.
Choose the installation method
To change its windows, there are two methods: the total change or the change of the opening only.
If it is observed that the fixed part which is linked to the wall is in good condition, it is possible to keep it in place and to “insert” another window into the freed space. This method known as “installation in renovation” naturally has the advantage of considerably simplifying the work and therefore the intervention time. This is also an opportunity for the professional to check whether the connection between the old frame and the load-bearing wall is indeed waterproof. Indeed, the risk of loss is such that you would lose all the benefit of your work if this were not the case.
If you opt for a total change, the task will be if not more complex at least longer because the professional will have to unseal and intervene on the masonry to seal the new frame.
Opt for adapted joinery
The choice of materials does not necessarily condition the insulating power but rather its longevity and the possible need for specific maintenance. Depending on your budget, your tastes and your desire to get involved in the maintenance of your doorframes, several alternatives are available to you.
- Wood: warmth, contact, the main advantage of wooden openings is that they blend in perfectly with traditional house facades. The main defect of wood is the need for regular maintenance over time to preserve its aesthetics and lifespan.
- The advantages of aluminum: the main advantage of aluminum is the gain of 10 to 25% of glazing surface, compared to wood and PVC. The downside, however, is the cost of the material. On average and for the same size, aluminum windows are around 25-30% more expensive than wood or PVC openings. The lightness of the aluminum gives these openings great mechanical performance allowing the installation of large formats.
- The qualities of PVC: PVC windows are preferred in France in nearly 60% of cases. Excellent UV resistance, low maintenance, available in different colors, PVC has many advantages.
The choice of glazing
Double glazing is to date the most common offer and offers excellent insulating power (thermal as sound).
For openings exposed on the ground floor and on the public thoroughfare, doorframes fitted with acoustic glazing and burglary retarders will be preferred.
On the facades facing due south and strongly subjected to solar radiation, solar control glazing will be considered against glazing with reinforced thermal insulation on the other facades.