Allstar TV - Ridge Vent vs Whirlybirds.avi

hi folks and welcome to another episode of all-star TV where every week we bring our viewing audience another tidbit fact or piece of information about their home and try to keep you up to speed with what's going on in the industry today we're looking at ventilation by the way I'm your host all-star Justin so here we are looking at the soffit ventilation the important thing to remember is you've got an attic space in your house that must be ventilated that's one of the biggest deals in our industry right now is with the new codes everything's becoming very air tight on the home and we want that attic to ventilate properly all that heat that's produced in the home the average home produces four to six gallons of moisture a day just from the people living in it and all that hot air rises up into your attic space and we want some sort of a ventilation system to circulate that air up there ideally folks your attic space will be 5 to 10 degrees different than the outside temperature at the most so we want that attic space to be the same temperature as the outdoors as much as possible if you look at our soffit intake here the home naturally creates an airflow by drawing air in through the overhang on our house we call that the soffits so air gets drawn in and then it goes out through whatever type of roof venting system we have up on the roof if you look at our soffit ventilation system here you've actually got a good soffit intake here we've got vented soffit panels aluminum soffit panels and this venting goes the entire distance of this house so right off the bat we can see that we've got a good air intake flow when we're looking at this home next thing we want to look at is the roof here's what we wanted to do on this house this house actually had Richmond on it when we first looked at it before we tore it off and we assumed that we'd be able to do ridge vent again it's a great example in time because you've got a peak that's the entire distance of the home and so all that soffit venting would have a ridge vent to exhaust out of this entire distance here's the product that we actually sent out that we were hoping to use it's a product by GAF this is what a ridge vent is and what we would normally do is I pulled this back just to show you an example of what we wanted to do we'd normally cut a hole in the peak of the roof Peter we'd cut the sheathing back about 3/4 of an inch on each side to create a one and a half inch gap that would allow all that airflow to exhaust right out through your peak and it makes sense because the whole peak would be opened up and that air flow through your soffits would naturally ventilate out through the peak of the roof here's what we ran into when we went to cut this open when we remove the old ridge vent we noticed this wasn't cut open at all and as we attempted to cut it open we noticed that the way this house was actually manufactured the framing of it is such that we've actually got framing members underneath this peak so we would have to cut this sheathing back about five inches in order to get the air intake that we need to well if I cut that open five inches folks that's going to cause this to lead this product here is designed to have an opening of about a 1 and a half inches this actually sits on your peak like this if we were to use it and you want that gap about an inch and a half if I go to five inches with this I run the risk of having snow and rain and water infiltration in through these vent holes so ridge vent very quickly became an option that wasn't gonna work for this house now we're this particular house we would have put in 40 feet of ridge vent we only need two turbines to receive the same exhaust results turbines is a great product that a lot of contractors steer away from but it's a proven tried product and the nice thing about turbines is that once they're spinning they'll actually work in drawing the air out of the attic so we measure two holes we've measured those holes twelve inches down from our roof feet and we've measured those holes so that they're exactly spaced evenly from the ends of our room and from each other that's very important that your turbines are spaced evenly and that they're on the same side of the roof you never want vents on both sides of the roof so we've cut a 12 inch hole as you can see here our insulation is good down in here folks you can really feel the hot air coming out Natick right now and that's awesome because that's what we're trying to achieve is to get that hot summer humid air out of that attic and keep that air flowing so we're gonna put this together and once we do that what we'll have is a situation you can see behind me the turbine spinning we'll have two turbines on this roof spinning drawing that air out of the Attic in a situation where Richmond just happened to not work so thanks for joining us today that's why Richmond doesn't work on every home and why turbines are a great option for this home there's a lot of different venting options and we'll we'll address others in more episodes [Music] [Applause] you

Channel: Allstar Construction

Views: 63,389

Keywords: ventilation, turbines, whirly birds, ridge vent, manufactured home

Id: XCnD2YmQIsg

Length: 5min 14sec (314 seconds)

Published: Fri Jun 25 2010