Which profiles are best suited for new buildings

Which profiles are best suited for new buildings

Summary

• 5–7 chamber PVC profiles are the most common choice for new buildings.
• Thermal performance, frame rigidity and seal quality are key.
• Reinforcement and wall thickness affect durability and installation.
• Compatibility with double- or triple-glazed units is critical for energy efficiency.
• Upper floors require stronger profiles for wind loads.
• Overall cost depends on profile class, glazing, and installation.

Introduction

New-build apartments and houses have specific window requirements: efficient thermal insulation, correct installation with facade systems, good soundproofing and long service life. Choosing the right PVC profile significantly affects comfort, energy bills and building performance.

Main selection criteria for new buildings

1. Chamber structure

• 3–4 chambers — basic, budget-friendly, suitable for warmer regions.
• 5 chambers — balanced choice for most apartments.
• 6–7 chambers — higher thermal performance, recommended for energy-efficient projects.

2. Installation depth

Installation depth (typically 60–90 mm) matters. Wider profiles allow thicker glazing units and improve thermal stability.

3. Reinforcement quality

Proper steel or polymer reinforcement preserves geometry and resists wind loads, especially important for large openings and high floors.

4. Outer wall thickness

A thicker outer wall improves impact resistance and appearance, and helps during construction and finishing.

5. Seals and airtightness

High-quality EPDM or TPE seals maintain airtightness over time and adapt to building movements common in new constructions.

6. Glazing compatibility

Double- and triple-glazed units with low-e coatings and inert gas filling (argon/krypton) drastically reduce heat loss and improve sound insulation.

Profile types and where to use them

• Economy (3–4 chambers): balconies, loggias or low-cost segments.
• Standard (5 chambers, 60–70 mm): universal choice for apartments in new buildings.
• Premium (6–7 chambers, 70–90 mm): for high energy performance, large windows and minimal heat loss.

Installation specifics for new buildings

• Use warm-installation practices with a 10–20 mm gap and proper sealing.
• Account for building settlement: use flexible joints in facades.
• Provide controlled ventilation when windows are highly airtight.

Practical advice

• Ask for technical datasheets and certificates showing thermal performance.
• Compare real parameters (chamber count, installation depth, seals) not just brand names.
• Verify which glazing units can be installed and check warranty terms for seals and hardware.
• Consider whole-window Uw value rather than only profile U-value.

FAQ

Which profile is best for top floors in new buildings?

For top floors, choose profiles with reinforced sections and thicker outer walls (5–7 chambers, 70 mm+). They resist wind loads and maintain geometry over time.

Do I need a triple-glazed unit in a typical apartment?

In many climates, a double-glazed unit paired with a 5-chamber profile is sufficient. Triple glazing becomes important in colder climates or for very large windows.

What improves sound insulation most — profile or glazing?

Sound insulation is a combination: glazing with varied pane thicknesses and increased air gap plus a wider mounting depth in the profile gives the best results.

Is it worth paying extra for branded profiles?

Brands offer quality control and certification, but technical specs (chambers, depth, seals) matter most. Compare parameters and warranties.

How to consider installation when choosing a profile?

Confirm installation depth and sealing strategy with installers. Proper installation often compensates for profile differences and is crucial for performance.

Conclusion

For most new buildings, a 5–7 chamber profile with 70 mm or greater installation depth, combined with an appropriate double- or triple-glazed unit (low-e, argon), offers the best balance of efficiency, durability and cost. Prioritize whole-system performance: profile, glazing and professional installation.