Aislamiento Acústico en Ventanas: Cómo Conseguir un Hogar Silencioso

Outside noise is one of the main quality of life problems in urban areas. Windows represent both the weak point and the most effective solution to achieve a silent home.

¿Cómo se Mide el Aislamiento Acústico?

Se mide en decibelios (dB) con el valor Rw:

• Rw 25-30 dB: Aislamiento básico
• Rw 30-35 dB: Aislamiento medio
• Rw 35-42 dB: Buen aislamiento
• Rw 42-50 dB: Aislamiento alto

Dato importante: Una reducción de 10 dB reduce el ruido percibido a la mitad.

Factores que Afectan al Aislamiento

Tipos de Vidrio Acústico

El Problema del Cajón de Persiana

The shutter box is the weakest point of acoustic insulation. Solutions:

• Cajón compacto aislado: La mejor opción en obra nueva
• Aislamiento del cajón existente: Con lana de roca
• Eliminar persiana: Sustituir por estores interiores
• Persiana exterior: Separada de la ventana

Costes Indicativos

Incrementos sobre el precio de una ventana estándar:

• Vidrio asimétrico: +10-15%
• Vidrio laminado acústico: +25-40%
• Cajón compacto aislado: +150-250€ por ventana
• Doble ventana: Aproximadamente el doble

Recommendation

A 44.1/16/4 glass with quality carpentry and an insulated box offers the best price/performance balance for typical urban situations.

At Altea Glassware realizamos mediciones acústicas gratuitas para recomendarte la solución óptima. Solicita presupuesto sin compromiso.

Tabla de Niveles de Ruido y Soluciones

Impacto del Ruido en la Salud: Lo que Dice la Ciencia

The World Health Organization (WHO) considers environmental noise the second most harmful environmental factor for health in Europe, second only to air pollution. These are the data:

• Trastornos del sueño: Levels above 40 dB at night (equivalent to a whispered conversation) already alter the phases of deep sleep, according to the WHO.
• Riesgo cardiovascular: Prolonged exposure to levels above 55 dB increases the risk of hypertension by 7% and heart attack by 3%.
• Rendimiento cognitivo: Children exposed to more than 50 dB in study environments have a 15-20% lower performance.
• Estrés crónico: Constant noise raises cortisol levels, the stress hormone, even when we are not aware of the noise.

Claves Técnicas del Aislamiento Acústico

Entender estos conceptos te ayudará a elegir mejor:

• Ley de masa: The greater the mass of the glass, the greater the insulation. That is why an 8 mm glass insulates more than a 4 mm glass.
• Principio de asimetría: Two glasses of different thicknesses (6+4 instead of 5+5) insulate better because each one resonates at different frequencies.
• Lámina acústica PVB: The acoustic film (PVB Silence) can improve insulation by an additional 3-5 dB, equivalent to reducing perceived noise by half.
• La cámara importa: Wider chambers (20 mm vs 12 mm) improve sound insulation, especially in low frequencies (traffic, airplanes).

Consejo Ecológico

Good acoustic insulation is always linked to good thermal insulation. By investing in windows with high acoustic performance, you are also reducing your energy consumption. A window with Rw 42 dB typically has a U value of less than 1.5 W/m²K, which can mean a saving of 300-500 € anuales en climatización y 1-2 toneladas menos de CO₂ per year.