Attic Ventilation Ireland

See the benefits of attic ventilation a new roof is more than just shingles.

Attic ventilation ireland.

The building regulations part f uk and ireland require that the system provides for an ongoing air renewal of approximately 0 4 ac hr in our case study house and also specifies the extraction rate to be achieved in wet rooms 50 m3 hr in kitchen 30 m3 hr in bathroom 20 m3 hr in wc etc. Attic fan ventilation attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. To understand ventilation in roofs we must first recognise that there are many different roofs types. Attic insulation is one of the first steps toward a warmer house for dublin homeowners.

Or call us in our limerick office at 061 518200 and in mayo at 094 9068986. In ireland the most common types are pitched lean to and flat roof construction. In a balanced ventilation configuration ambient outside air enters into the attic space via soffit or eave vents. In other words the entire vent opening doesn t count as vented space.

This air passes through the attic space where it displaces warm moisture laden air which in turn exits the attic via vents at or near the top of the space being vented. That said air resistance and interference such as vent grates reduces the area of true ventilation. It is always easy to tell if the attic of a building isn t insulated because you will spot the pigeons and seagulls enjoying the warm air coming up through the roof. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.

However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. When the warm air from the living space travels to the attic space it can condense on the colder roof members unless properly ventilated. Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation. A basic attic conversion will take about 10 days to complete gilbert says but to make the attic space look and feel habitable you need to factor in good sources of natural light and ventilation.