Vaulted Ceiling Roof Ventilation

Ventilating cathedral ceilings step 1.

Vaulted ceiling roof ventilation.

Chimneys recessed lights plumbing chases and holes drilled through top plates for plumbing or wiring should all be sealed figure 2 53 at left. Upstairs bedrooms bonus rooms game rooms living rooms dining rooms kitchens or any room with vaulted ceilings can now be vented properly. These assemblies pose unique ventilation problems. Cathedral ceiling ventilation roof bottom vents because each rafter space is like a small individual attic it.

A vaulted roof features angled rafters that rest on wall plates and connect at the top to a ridge. Attic bypasses are hidden air passageways that lead from the. Cathedral vaulted or any ceiling that has insulation blocking the airflow from the soffit vents to the attic needs an attic baffle in each rafter bay. The flow of water vapor.

To understand the necessity of proper ventilation it helps to have a basic. Penetrations roof ventilation challenges common air leak points in ceilings pay special attention to penetrations in the ceiling plane particularly in cathedral ceilings. Sealing bypasses the first line of defense. Without an attic baffle there will not be any air space for fresh air to enter the attic from the soffit vents.

Steeper roof pitches are necessary for higher vaults. The bottom of each rafter cavity ends at the soffit which is the horizontal plane that lies just beneath. Virtually any house with a sloped roof will support a vaulted ceiling just as long as attic space exists in which to construct the vault. Vaulted ceilings sometimes referred to as cathedral ceilings occur in steep slope roof assemblies in which there is no attic space between a ceiling and roof deck.

Cathedral ceiling ventilation insulation 1.