Quotation for works at 7 Park Close as follows-

Supply and installation of PIV (Positive input ventilation) system to the loft space, including alteration to existing wiring to provide power source.

Information on PIV

Positive Input Ventilation (PIV) also sometimes known as positive pressure ventilation work as a whole house ventilation system and create fresh and healthy living environments by supplying fresh, filtered air into a property at a continuous rate throughout.

Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants; it can also be used for purposes of thermal comfort or dehumidification. Positive Input Ventilation or PIV Systems work by encouraging the movement of air from inside to outside from a unit that is usually installed in a loft. These units reduce or eliminate surface condensation altogether by replacing humid stagnant air with fresh filtered air.

PIV is recommended in situations where:

• You don't want to core drill external walls for traditional ventilation.
• You require a whole house ventilation solution.
• You want to ensure condensation does not cause a future damp or mould issue.