Types of Heating - Ventilation

Why Ventilation is Important

High levels of moisture in the home, coupled with a lack of ventilation, may lead to condensation, damp and mould growth.  In turn, this may result in deterioration in the health of the occupants and the also of the building.

Ventilation is considered important to:

  • Combat condensation dampness by ventilation excessive moisture in the home to the outside
  • Provide a supply of oxygen to the heating system/appliance, especially those that burn the fuel in the home, e.g. solid fuel fires, bottled gas heaters and gas radiant fires
  • Expel foul air from kitchen and bathrooms
  • Prevent wood rot in roof spaces and areas under the ground floor

How to Ventilate a Building

To ventilate a building, there are numerous ways of introducing oxygen and expelling unwanted moisture, for example:

  • The installation of air bricks
  • The opening of windows
  • The installing of trickle vents in double glazed units
  • The fitting of a mechanical extractor fan
  • The fitting of an automatic humidistat fan

It cannot be stressed enough how important it is for ventilation to occur in areas of high moisture level production, for example from cooking and showering.

Keeping doors closed from these high, moisture-producing areas is also vitally important to preventing moisture drifting throughout the building.

Unwanted Ventilation

Whilst ventilation is very important to the well being of a building and its occupants, there is often unwanted ventilation, particularly in older properties. Unwanted ventilation is caused by:

  • draughts around badly fitted doors and windows
  • cracks in the fabric of the building
  • gaps between floorboards and behind skirting boards
  • from unused chimneys and flues

Draught proofing is the main solution to the above-mentioned problems, keep in mind that kitchens and bathrooms are not recommended for draught proofing as they could build up excessive moisture levels if not ventilated properly by other means.

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