Foam Insulation Baffles Black
Michigan residential construction code requires a baffle be installed in every cavity; however, at Ecotelligent Homes we don’t treat the code as the gold standard, we treat it as the bare minimum allowed. Our basic attic insulation package goes beyond the minimum code requirements and includes installing baffles in every cavity with a blocker and air sealing of the exterior top plate, see sketch below (artwork courtesy of our crafty engineer, Owner Amanda Godward).
A Soffit vent, on the roof's bottom, is a ventilation opening. The soffit directs airflow from the roof to the outside, through the ground and over any barrier, such as turf or slab. Some soffits are equipped with insulation or screens to reduce wind-driven rainwater intrusion. Others have insulation for convenience, as insulation can also be installed in an attic.
Tech Tips and Critical details is a visual guide to proper installation of ventilation baffles. It's a great resource. It outlines seven steps to properly fit and install attic insulation baffles. Another great resource on installing attic insulation baffles is this excellent video from HouseImprovements.com. Clear guidance in how to deal with small details can help manage an extremely important function in the attic.