Ventilation & Condensation 2026
A roof that can't breathe is a roof that will fail. In 2026, as homes become more airtight to save energy, proper roof ventilation is more critical than ever to prevent timber rot and mould growth.
Cross-Flow Ventilation Systems
Ventilation Costs (2026)
*Retrofitting ridge vents often requires scaffolding, which can add significantly to the total project cost.
The Ventilation Circuit
Think of your loft like a chimney. You need air coming in at the bottom and escaping at the top to carry moisture away.
Don't block the "Eaves Gap"
The most common cause of loft condensation is homeowners pushing their insulation right into the corners, blocking the gap where air enters from the soffits. Always use "Eaves Trays" or baffles to ensure a 50mm clear air path above your insulation.
Summer Cooling
Proper ventilation doesn't just stop damp; it also prevents your loft from becoming an oven in the summer.
Timber Longevity
Dry timbers can last for hundreds of years. Ventilation is the key to preventing rot.
Healthier Air
By preventing mould growth, you ensure the air in your home remains free from harmful spores.
Ventilation FAQ
Add Ventilation Now
Use our 2026 calculator to add professional ventilation components to your roofing project and protect your investment.