Active Vent

Proven Benefits: How Active Vents Protect Your Property, Health, and Finances

Discover the numerous advantages of our revolutionary technology for your property, health, finances, and the environment. Our patented wind-powered design creates active suction when traditional vents fail, delivering measurable benefits in all weather conditions.

Structural Protection

Health Benefits

Cost Savings

Environmental

Superior Structural Protection: Preventing a Leading Cause of New-Build Defects

Active Vents provide superior protection for your property by actively removing moisture, preventing structural damage and preserving your property value. The National House Building Council (NHBC) reports that DPCs and cavity trays account for around half of the superstructure defects it sees, with blocked or missing weep vents specifically cited.

Prevents Structural Damage

By actively removing moisture from wall cavities, Active Vents prevent rot, decay, and deterioration of wooden elements, brickwork, and other building materials. Our own testing indicates the vents keep extracting moisture even in strong winds, when traditional vents can become blocked.

Continuous moisture extraction during storms

Eliminates Damp & Mold

The active suction technology effectively removes moisture that leads to dampness, preventing the growth of mold and mildew that can damage walls and furnishings.

Protects Property Value

Properties with effective damp prevention maintain their value better. Active Vents provide long-term protection, making them an investment in your property's future value.

Long-Term Protection

Unlike temporary solutions that treat symptoms, Active Vents address the root cause of dampness by continuously extracting moisture, providing lasting protection for your property.

  • Continuous moisture extraction 24/7
  • Long-lasting UV-resistant materials
  • Designed for decades of reliable service
Property Protection Visualization

Insulation Performance Protection

Building science research shows that damp insulation can let through nearly twice the heat of dry insulation, driving up heating costs. Active Vent's cross-ventilation technology:

~1.9×
Heat let through by damp insulation vs dry (Hayrullin et al., 2022)
25×
How much better water conducts heat than the still air insulation relies on

Prevents Dew Point Condensation

Eliminates moisture condensation on insulation surfaces that occurs when cavity air reaches dew point temperature.

Maintains Optimal Performance

Ensures insulation maintains its rated R-value year-round through effective moisture control.

Protects During High Humidity

Provides continuous protection during high humidity periods when traditional vents fail.

Reduces Energy Costs

Prevents the energy efficiency losses caused by humidity-compromised insulation.

Health Benefits

By preventing damp and mould growth, Active Vent helps contribute to a healthier indoor environment for you and your family. Research shows that damp environments can significantly increase respiratory problems, allergies, and other health concerns.

~5,000
UK asthma cases linked to damp & mould in 2019 (GOV.UK)
8,500
Lower respiratory infections linked to damp & mould, 2019 (GOV.UK)

Respiratory Health

Damp environments can exacerbate respiratory conditions such as asthma and allergies. By eliminating moisture, Active Vents help create a healthier indoor environment.

  • Reduces allergens like mold spores
  • Improves indoor air quality
  • Benefits for asthma and allergy sufferers

Healthier Living Environment

Damp-free environments are more comfortable, prevent the growth of harmful microorganisms, and contribute to an overall sense of wellbeing.

  • Eliminates musty odors
  • Prevents bacterial growth
  • Creates a more comfortable living space

Measurable Cost Savings: Lower Energy Bills and Prevented Damage

Active Vents offer cost savings by preventing the expensive consequences of damp problems and improving energy efficiency. Keeping cavities properly ventilated helps insulation stay dry and perform as intended, reducing the extra heating cost that damp, underperforming insulation causes.

~1.9×
Heat let through by damp insulation vs dry (Hayrullin et al., 2022)
25×
How much better water conducts heat than the still air insulation relies on
Cost Comparison Chart

Cost-Effective Prevention

Installing Active Vents is significantly less expensive than dealing with the consequences of damp problems, which can include structural repairs, decoration, and potential health costs.

  • Damp Treatment Costs: Typically runs into the thousands per room
  • Structural Repairs: Can run much higher
  • Active Vents: A fraction of repair costs
  • Return on Investment: Potential savings of thousands

Real Results: Benefits That Scale With Your Home

Every home is different. Active Vents deliver benefits that scale with your home's specific needs - from protecting the efficiency of an already-dry home to recovering performance in a property with established moisture problems.

Homes With Mild Issues

Protect

For homes with minor moisture issues or in the early stages of dampness, keeping cavities ventilated protects the insulation performance you already have.

  • Lower humidity levels
  • Improved insulation efficiency
  • Prevention of future problems

Homes With Moderate Issues

Recover

Where moisture has already begun compromising insulation, drying the cavity helps recover lost thermal performance.

  • Significant humidity reduction
  • Recovery of insulation R-value
  • Elimination of developing mold

Homes With Severe Issues

Restore

For properties with existing dampness and severely compromised insulation, there is the most lost performance to restore as walls dry out.

  • Restoration of insulation effectiveness
  • Prevention of structural damage
  • Elimination of health hazards

Why Results Vary

How much a home benefits depends on how wet its walls are to begin with. A home with dry cavities gains protection against future moisture; a home with saturated insulation has far more lost performance to recover.

Active Vent works the same way in both cases — it keeps the cavity ventilated so insulation can dry and perform as intended. Because outcomes depend on the property, we don't quote a fixed percentage improvement.

Environmental Impact: Reduced Carbon Footprint Through Maintained Insulation Efficiency

Active Vents offer an environmentally friendly solution for moisture control, using renewable wind energy rather than electricity or chemicals. By maintaining insulation effectiveness, each home with Active Vents can help cut carbon emissions by keeping insulation dry and efficient. The exact saving depends on your property — our ROI calculator gives an estimate of your annual CO₂ reduction and its equivalent in trees planted.

0 kWh
Electricity consumption
~1.9×
Heat let through by damp insulation vs dry

Zero Energy Consumption

Unlike electric dehumidifiers or fan-based systems, Active Vents use only the power of the wind, requiring no electricity and producing zero carbon emissions during operation.

Sustainable Materials

Our vents are manufactured using durable materials designed for a long service life, reducing waste and the need for frequent replacements.

Reduced Chemical Use

By preventing damp problems, Active Vents eliminate the need for chemical treatments, fungicides, and other potentially harmful substances used to treat mold and mildew.

Active Vent: By The Numbers

15%

Of all NHBC insurance claims on new builds stem from failing cavity trays and dampness issues

View research data
~1.9×

More heat let through by damp insulation than dry (Hayrullin et al., 2022)

Energy impact data
65%

The relative-humidity threshold homes should stay below to limit mould (Approved Document F)

See the evidence

Note: Statistics represent general industry research on moisture impacts and ventilation effectiveness. View our research disclaimer