House With No Attic Ventilation

Improperly installed attic ventilation cannot address two important aspects of indoor comfort.
House with no attic ventilation. Attic ventilation and you do have an attic so to speak i ll get to that in a minute is a science that is unique to the architecture of each building. On the principle that hot air rises the accumulated heat and moisture would rise to the attic and out the roof vents. Roof eave venting on roofs with no overhang or soffit how to correct improper or inadequate attic or under roof ventilation in buildings detecting and correcting attic condensation and preventing ice dam leaks in buildings how to correct improper or inadequate attic or under roof ventilation in buildings. There are no one size fits all solutions.
For example on a hip roof ridge vent is usually not the way to go on most hip roofs there simply isn t enough ridge length. Your actual living space is sealed. Passive ventilation now that we have that out of the way let s get to the heart of the matter venting a house with little to no eaves or soffits. Authoritative expert building diagnostic and repair advice toxic black mold and.
How to vent an attic with no eaves the function of soffit vents. Problems when roof has no overhang. When the attic becomes part of the home to be heated and cooled open wall gable vents and roof vents are no longer feasible but the underside of the roof the sheathing and rafters can still get. There is no attic there is no insulation whatsoever.
If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the. It s in atlanta and when it s over 85 degrees the ac runs continuously. The interior is beautiful the beams and 2 x 6s are stained and polyeurethaned. Don t avoid ventilating your attic for fear you re letting cold air into the house.
There is only rolled roofing felt and one layer of 2 x 6 between the sun rain etc and the living room. The most common way to add ventilation to an attic is by installing air intakes in the soffits and putting an outlet at the gable of the house. Poor insulation is usually the culprit although if you enter the attic on sunny winter day your attic space can be warmed by the sun more than your furnace. For proper ventilation it isn t enough for air to simply get into your attic.
This moisture is released into the air inside the house from bathing cooking plants laundry and other causes. Without adequate ventilation moisture rises with the hot air and forms condensation on the inside of the roof deck. The design of many older houses omits eaves which maximizes the amount of sunlight. Unless your roofing system has insulation on the roofing deck and is designed without ventilation your furnace should not be heating your attic.