Soundproof My Window

Understanding Traffic Noise

Traffic noise is one of the most common and disruptive forms of environmental noise pollution. Consisting of mixed frequencies from engine rumble (low), tire noise (mid), and horns/brakes (high), traffic requires specialized acoustic solutions that address the full frequency spectrum. Whether you're dealing with bedroom noise issues or need workplace productivity improvements, the right acoustic windows can transform your environment.

Noise Levels

• Quiet street: 50-60 dB
• Busy road: 70-80 dB
• Motorway: 80-90 dB
• Heavy traffic: 90-100 dB

Target Reduction

• Moderate: 15-20 dB (noticeable)
• Significant: 25-35 dB (comfortable)
• Maximum: 40-50 dB (library quiet)

Best Solutions for Traffic Noise

Laminated Acoustic Glass (Recommended)

The gold standard for traffic noise. PVB interlayer dampens vibrations across all frequencies.

Performance:

STC 40-48 (double pane)
STC 48-55 (triple pane)
Reduces traffic by 80-95%

Best For:

Properties on busy roads
Near motorways/highways
Maximum noise reduction

Triple Pane with Asymmetric Glass

Three panes of different thicknesses prevent resonance amplification of traffic frequencies.

Configuration:

6mm + 8mm + 10mm glass
Optimized air gaps
Argon gas fill

Benefits:

STC 50-55+
Excellent energy efficiency
Long-term value

Secondary Glazing System

Cost-effective solution adding acoustic layer to existing windows without full replacement. Learn more in our comprehensive secondary glazing guide.

Setup:

100-150mm air gap
6-10mm laminated glass
Acoustic seals

Advantages:

STC 45-50
Lower cost (£400-700/m²)
Keeps existing windows

Choosing Based on Traffic Volume

🟢 Moderate Traffic (60-70 dB)

Residential streets with regular but not constant traffic

Solution: Double glazed with 6.4mm laminated glass + secondary glazing option
Expected Reduction: 20-30 dB (comfortable indoor environment)
Investment: £600-900 per window

🟡 Heavy Traffic (70-85 dB)

Main roads with constant traffic throughout the day

Solution: Triple pane with laminated glass or double pane + secondary glazing
Expected Reduction: 35-45 dB (quiet indoor environment)
Investment: £900-1,400 per window

🔴 Extreme Traffic (85+ dB)

Motorways, highways, or major urban thoroughfares

Solution: Triple laminated + secondary glazing (quad-pane system)
Expected Reduction: 45-55 dB (library-quiet indoor space)
Investment: £1,400-2,000 per window

Additional Traffic Noise Tips

Seal gaps thoroughly: Even small air leaks drastically reduce performance. Professional installation crucial.

Consider ventilation: Trickle vents and acoustic ventilators maintain air quality without compromising noise reduction.

Address all openings: Don't forget letterboxes, airbricks, and chimney openings that can leak traffic noise.

Upgrade entire facade: For maximum effect, treat all windows facing the traffic source simultaneously.

Free Noise Assessment

We offer free on-site noise assessments with professional decibel meters to measure your exact traffic noise levels and recommend the most cost-effective solution for your specific situation.

Block Traffic Noise Today

Get expert advice and a customized solution for your traffic noise problem

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Traffic Noise FAQs

What STC rating do I need for traffic noise?

For moderate traffic (50-70 dB), STC 38-42 provides noticeable relief. Busy roads (70-80 dB) require STC 43-48 for comfortable indoor levels. Motorways and highways (80-90+ dB) need STC 49-55+ for maximum effectiveness. Higher ratings deliver exponentially better results.

Will soundproof windows block all traffic noise?

No window can block 100% of noise, but quality soundproof windows can reduce traffic noise by 80-95%. Very low-frequency rumble from heavy trucks may still be slightly audible, but overall noise levels will drop to comfortable conversation levels (40-50 dB).

How do I know which solution is best for my traffic noise level?

We recommend a professional acoustic assessment to measure your current noise levels and recommend the optimal solution. As a general guide: light traffic needs basic double glazing, busy roads need laminated acoustic glass, and motorways require triple glazing or secondary glazing systems.

Can I soundproof windows myself for traffic noise?

DIY window inserts can reduce traffic noise by 70-75% and cost £200-400 per window. However, for maximum traffic noise reduction (85-95%), professional installation of laminated acoustic glass or secondary glazing is recommended to ensure proper sealing and optimal air gaps.

Traffic Noise Reduction Solutions