I get asked often from home owners about gable venting and ridge venting for there roof. I hear so many conflicting stories that I just tell them this; Ridge vent only works right if you have soffit vent, and only then if there is no insulation blocking air flow or you have baffles between the insulation and roof boards to the soffit. And thats when you Do not want gable vents to interfere the up draft. NOW THIS IS THE THING. I got a old bungalow with no way to vent up from soffit to ridge without it being a job in its self cause of the finished upper floor. Im gona be doing the siding here, And the roofers will be befor me. Wrong or right? I said lets keep the gable vents and go with ridge vent also. When I remove out the old aulminum soffit, the best I can do is slip in a baffle, but that wont do much but for only a 1/3 of the roof, and then you have to have low set 750's to vent and look bad on a new roof. I dont eaven want this siding job, cause there gona be out there in there lawn chairs watching our every move and askin why does that look like that! And you just wana say< Get outa my face I aint done YET. .