Roof Ventilation Installation in Bordon

Roof ventilation installation in Bordon stops moist air sitting in the loft. Without airflow that moisture turns to condensation on the timbers, soaks the insulation and can look very much like a roof leak from below.

Why a Roof Needs to Breathe

Warm damp air from the house rises into the loft. If it cannot get out, it condenses on the cold underside of the roof and runs down the timbers. Air needs to come in low at the eaves and leave high at the ridge. That flow keeps the roof space dry.

More Information

Condensation Mistaken for a Leak

Damp patches on loft insulation, droplets on nail points and black mould on the rafters usually mean condensation rather than rain coming in. It tends to show in cold weather and across a wide area rather than in one spot. Adding ventilation fixes what more felt never will.

Soffit Vents, Tile Vents and Ridge Vents

Soffit vents or over fascia vents let air in at the eaves. Tile vents sit in place of a tile higher up the slope. A ventilated ridge lets it out at the top. We look at how your roof is built and fit the combination that gets air moving through it.

About us

Roof ventilation comes up often once you start looking at damp lofts, and in 15 years around Bordon HK Roof Care has fitted plenty of vents into roofs that were sealed up too tightly. It is usually a straightforward job, and it deals with a problem people often mistake for a leaking roof.

  • 15 years working on roofs in Hampshire

  • Emergency call outs 24 hours a day

  • Free quotes with a clear price up front

  • Roofs, chimneys and gutters by one team

  • Based in Bordon, covering the villages nearby

Frequently Asked Questions

How do I know if my loft has a ventilation problem?

Go up on a cold morning. Damp or beaded timber, wet patches spread across the insulation and black mould on the rafters all point to condensation rather than a leak. A leak makes a stain in one place. Condensation shows up over a wide area, often on the coldest side.

Can roof ventilation be fitted without stripping the roof?

Yes. Tile vents replace an individual tile, and soffit or over fascia vents go in at the eaves without disturbing the covering. A ventilated ridge means lifting the ridge line only. None of these need the roof taken off, so most jobs are finished inside a day.

Does extra loft insulation cause condensation?

It can make it show up. More insulation keeps the loft colder, so moist air reaching it condenses more readily. The insulation is not the problem, but it does mean ventilation matters more. Blocking the eaves with insulation pushed too far into the corners is a frequent cause.

Our reviews