Choosing joinery for a home involves making a decision between four materials with very different performances. PVC, aluminum, wood, and mixed solutions are not equal in terms of thermal performance, lifespan, or budget. This article compares these families of joinery based on the criteria that truly matter in the decision-making process: insulation, maintenance, longevity, and compatibility with new European regulatory requirements.
Comparison of Joinery Materials: Performance and Limitations
The table below summarizes the differences between the four main families of materials used for windows and exterior doors.
| Criterion | PVC | Aluminum | Wood | Mixed (wood-aluminum) |
|---|---|---|---|---|
| Thermal insulation | Very good (multi-chamber profile) | Acceptable with thermal break | Excellent (natural insulator) | Excellent |
| Maintenance | Almost none | Almost none | Stain or paint every 5 to 10 years | Low (aluminum on the exterior) |
| Estimated lifespan | Long | Very long | Very long if maintained | Very long |
| Recyclability | Recyclable but limited recycling stream | Widely recyclable | Biodegradable, reusable | Partial recycling (separation needed) |
| Color range | Limited (lamination possible) | Very wide (RAL coating) | Custom paint or stain | Wide on the exterior, raw wood interior |
| Relative budget | The most accessible | Intermediate to high | Intermediate to high | The highest |
PVC has dominated the French market for about thirty years. With comparable thermal performances, a PVC window remains significantly cheaper than a wood or aluminum window. For projects where the budget drives the decision, this is often the first reflex. The professionals listed on the menuiserie-airaines.fr website specifically assist with this type of decision-making between materials and technical constraints.
Uw Coefficient and Glazing: What Really Determines Thermal Insulation
The material of the frame only represents part of the thermal performance of a window. The glazing occupies the largest surface area of the joinery and has a greater impact on the overall Uw coefficient (expressed in W/m².K). The lower this coefficient, the better the insulation.
A standard double glazing offers acceptable performance for most climates. Triple glazing further improves insulation, but its added weight requires reinforced hardware and a wider frame. It is mainly justified on north-facing facades or in regions with harsh winters.
Why the Frame Still Matters
Even with high-performance glazing, an aluminum frame without a thermal break significantly degrades the Uw. The thermal break, an insulating strip inserted into the profile, corrects this flaw. Checking for its presence is one of the non-negotiable points when choosing aluminum joinery.
Wood, being naturally insulating, does not require this device. PVC, thanks to its internal air chambers, also shows good values without additional enhancements.
Exterior and Interior Joinery: Different Requirements
Grouping all joinery under the same reasoning leads to poor choices. The constraints of an entrance door have nothing to do with those of a closet door.
- Exterior joinery (windows, entrance doors, sliding doors, shutters) must withstand the elements, ensure airtightness and waterproofing, guarantee measurable thermal and acoustic insulation, and meet anti-burglary security requirements.
- Interior joinery (communication doors, wardrobe doors, staircases) is focused on sound insulation between rooms, aesthetics, and flow of movement. The material does not need to withstand UV rays or external humidity.
- Technical doors (garage doors, fire doors) adhere to specific standards for mechanical resistance or fire resistance that take precedence over the aesthetic choice of material.
The type of opening also affects the space and daily use. A tilt-and-turn window combines partial ventilation and full opening. A sliding door frees up the passage without encroaching on interior space, but its airtightness heavily depends on the quality of the seals and the track.
Digital Passport for Construction Products: What Changes for Joinery
The European regulation (EU) 2024/3110, which came into effect in January 2025 and is applicable from January 2026, introduces a digital product passport for construction elements, including windows and doors. This system will concretely change the way joinery is compared.
This passport digitally compiles the origin of materials, certified technical performances, carbon footprint, and recycling possibilities. It complements the existing CE marking without replacing it.
Concrete Impact on Joinery Choices
For individuals, this passport means direct access to the environmental data of each product. Comparing the carbon footprint of two windows will become as simple as comparing their Uw coefficient. Aluminum joinery, energy-intensive in manufacturing but highly recyclable, and wood joinery, low in carbon but requiring regular maintenance, will be evaluated on uniform bases.
The rollout will be gradual according to product families. Manufacturers who anticipate this requirement are already displaying more detailed product sheets, making comparison easier before purchase.
The choice of joinery rarely comes down to a single criterion. PVC remains the most economical and widespread solution. Aluminum offers the greatest aesthetic freedom with remarkable longevity. Wood retains the best natural thermal performance, at the cost of regular maintenance.
Mixed joinery combines these advantages, for a higher budget. The overall Uw coefficient, integrating frame and glazing, remains the most reliable data for objectively comparing two products, regardless of the material.