Lead Roof Ventilation
Where a warm roof is used a ventilation void should be provided between the insulation and the timber decking supporting the lead if there is sufficient height available.
Lead roof ventilation. The vent is 32 inches wide 23 inches long and 2 inches high in the front tapering to blend in with the roof decking at the top. Critter quitter critter quitter small size plumbing vent repair for 2 1 2 in. Gable vents are a type of louvered vent that can act as an intake or exhaust vent depending on which way the wind is blowing. Perma boot 2 in x 15 in plastic vent.
For guidance on the amount of ventilation required reference should be made to british standards 5250 and 6229. Roof turbines have blades that spin in the wind pulling air up through the intake vents into the attic and out of the house. Airtrak is a proprietary range of ventilators designed specifically for the ventilation of roof voids. Static roof line vents are effective for ventilation but generally aren t recommended due to issues with leaks.
For pricing and availability. Mayco industries inc 1 1 2 in x 10 in lead vent and pipe flashing. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. Mayco industries inc 1 1 2 in x 10 in lead vent and pipe flashing.
Airtrak assists specifiers builders and specialist contractors in helping them to meet the requirements of the building regulations in relation to the important issue of roof void ventilation and the control of condensation. This model is well constructed with external louvers on each side as well as internal water diverters and splash guards. Vents model cqssm1 30 00 30 00. Item 23451 model 00100.
Although there are many different types of roof vents to choose from ensuring you have the right number of both. Roof flashing vent boot galvanized steel vent pipe flashing vent pipe flashing vent pipe flashing 3x8 roofing drain cover for roof. Advantages of proper roofing ventilation. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.
Gable vents may circulate air through only a small percentage of your attic. Static roof vents also known as roof louvers are designed to fit into the highest peaks of a roof and rely on wind to function. Hot air exhaust vents located at the peak of the roof allow hot air to escape. The installation of roof vents is a crucial part of roof design because it allows for proper attic ventilation which may help prevent condensation and early aging of your roofing materials.
When spaced evenly across the roof roof turbines can provide passive exhaust on windless days.