How do Positive Input Ventilation (PIV) systems work?

Positive Input Ventilation (PIV) systems work by drawing in fresh, filtered air from outside (usually through the loft) and gently ventilating it throughout your home. This helps dilute and remove excess moisture, reducing condensation and improving overall air quality.

Do Positive Input Ventilation (PIV) systems work?

Yes, PIV systems are proven to reduce condensation, damp, and mould growth. They continuously supply fresh air, which balances humidity levels and improves indoor air quality, making them especially effective in UK homes prone to condensation.

Do PIV units reduce humidity?

Yes, PIV units help lower humidity by replacing stale, damp air with drier, filtered air. This helps prevent condensation forming on cold surfaces and can improve comfort in living spaces.

Will a PIV unit stop mould?

A PIV unit can significantly reduce and even stop mould growth by controlling moisture and improving ventilation. However, existing mould should be treated and removed first before installation for best results.

Does a PIV unit cure damp and condensation?

A PIV unit can prevent and reduce condensation damp caused by excess moisture in the air. However, it does not cure rising damp or penetrating damp, which require separate treatments.

How long does it take for a PIV unit to work?

Most homeowners notice improvements within a few days to a few weeks of installing a PIV unit. Condensation typically reduces as humidity levels stabilise.

How much does a PIV unit cost to run?

PIV units are very energy efficient, often costing as little as £10–£15 per year to run. They use low-energy fans and require minimal maintenance.

Who can install a PIV unit?

PIV units should be installed by a qualified electrician or specialist installer to ensure safe fitting and compliance with building regulations.

Where can PIV units be installed?

PIV units are typically installed in lofts for houses or in-wall units for flats and apartments. They must be placed in an area with adequate ventilation access.

What is the best PIV system to buy?

The best PIV system depends on your property type. For houses, loft-mounted units are ideal. For flats, wall-mounted PIV systems are recommended. Look for units with filters, energy-efficient motors, and low noise ratings.

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Black Nitrile Palm Coated Gloves – Size 8

£1.41 ex. VAT / £1.69 inc. VAT

SKU 717SAFNTRPCGMEDNOCO(STGP1108) Categories Personal Protective Equipment (PPE), Timber and Damp Equipment

Product Description

100% Nylon seamless shell with nitrile coated palm and fingers with ventilated back. Lightweight for maximum dexterity and comfort with sensitivity.

Price is for 1 Pair.

Application

Suitable for general assembly handling and engineering applications.

Additional Information

Weight	0.02 kg

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Preservation Shop is the UK’s most competitive supplier of Damp Proofing, Basement Waterproofing, Woodworm, Wet Rot, Dry Rot, Structural Repair and Condensation Control products from major manufacturers.

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Black Nitrile Palm Coated Gloves – Size 8

Product Description

Application

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Preservation & Remedial Products From Major Manufacturers

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Our Opening Times

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Follow Us on Social Media

Subscribe to our Newsletter

Join Our Affiliate Program and Earn Income

Want to Earn Extra Recurring Income ?

Work in the Property Care trade? Know your stuff?

Do you have a blog or social media presence?

Know people who need damp proofing & timber treatment products?

Useful Links

About Us

Customer Services

My Account

Contact Us

About Us