Snow Blocking Roof Vents

You either need to separate the attic spaces with an air barrier of some kind never tried it or close off the lower vents that are intaking and add as much ventilation to the upper roof as you block off on the lower.

Snow blocking roof vents.

Roofers often complain that roof vents battered by storms can fail allowing blowing snow and rain to penetrate the attic. Residential and commercial customers will benefit from safer roofs less customer complaints of falling snow and ice less damage to roof vents and overall peace of mind during the winter months. Also forgot to mention make sure that blown in insulation is not blocking the soffit ventilation. Polycarbonate snow guards can also be referred to as.

Static vents often protrude from roofline thanks to special covers intended to keep all precipitation rain sleet hail and snow from entering the attic. If enough snow falls in your area during a short period of time the pipes may become clogged with the snow which may freeze in the vent pipe. Some companies such as snowvenco are developing roof exit vents designed to prevent wind blown snow leakage into the roof but those vents may still become snow covered and thus snow blocked. Snow jax snow stops snow guards snow brackets snow blocks or snowguards and typically are installed on commercial metal roof buildings.

Invented by a roofer to defeat the harsh canadian winters this csa approved static box vent has been independently tested to block 99 99 of snow and rain even in severe storm conditions.