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Gable vents work by letting air move horizontally from one end of the attic to the other. Soffits + ridge vent systems work by moving air vertically from the soffits to the ridge. If you've got both of those different airflows in the same space, they're going to end up mixing together in the attic, instead of flowing smoothly and freely from ...
Now the house needs a new roof, and the contractor is recommending that Pizza’s sister install a ridge vent. “I have learned here (building science articles by Joe Lstiburek) that in her case ridge vents are unnecessary and actually detrimental to cooling the attic space/roof when you already have gable and soffit vents, something to do ...
Powered attic vents like the Master Flow from GAF can be used in gable walls, but they come with the same risks as roof-mounted versions. GABLE VENTS are common in older homes Manufacturers usually say that soffit and ridge vents are the most effective option, but many older homes have gable-end vents (and some even have windows).
Gable end vents cause short-circuiting of the air out the ends of the roof and the middle will get warm and cause problems. Of course, there are those that say dont vent at all, but I believe the UBC requires 1/300 of the floor area as vent area, split evenly between eave and ridge or gable (as do a lot of shingle warranties).
Wing has a 30'x50' base crossed by a 30'x36' top. The two attics are open to each other. Where it all adjoins the church, the attics are open to each other. So, the attic of the 50' base of the "T" borrows from the fellowship hall's (32'x46') gable ventilation at one end, and from the two gable vents at the top of the T at the other end.
Gable vents. Gentlemen, I have a question along the lines of this conversation. I'm finishing a half story on a house with no overhang (built in '53). I was going to install vents lower on the gable ends, right and left, to vent the space behind the knee-wall. Then add vent chutes between the rafters from behind the knee-wall to a ridge vent.
Soffit vents ,ridge vents, gable end vents,..they all let air in and air out. Its called circulation. The gable vents do NOT intrefere with any ventilation streams of a soffit/ridge.In fact, as long as there is sufficient insulation in the attic floor area you can NEVER over-ventilate an attic. The more openings (high, low, sides,etc) the BETTER.
After all, when the house was built, it wasn’t insulated and couldn’t have been as tight as it is today. Rather than strain their budget, however, the homeowners agreed to keep a close eye on the attic. After a couple of years, it became clear that the two small gable-end vents weren’t providing enough airflow to keep the attic cool and dry.
To vent the ridge, cut back sheathing at least 1 in. on either side of the ridge board. Then run underlayment and wood shingles to the edge of the sheathing before nailing a ridge vent over the opening. The ridge vent on a wood-shingled roof can be finished in one of two ways: Shingle caps. Use a pneumatic nailer to attach preassembled shingle ...
Jerry - I have a 'flow-through' design with a gable end vent (actually it's a small fixed Marvin window with muntins that's screened, not glazed) and at the other end there are two quarter-round screened louvers with Azek muntins/frames mounted over them (again these read as windows, not louvers). There is a 1,000 cfm fan mounted at that end ...