Comments on: Resuscitating the roof: Providing adequate roof ventilation. http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/ The Home Improvement Stack Exchange Blog Mon, 27 Feb 2017 14:23:51 +0000 hourly 1 https://wordpress.org/?v=4.5.6 By: Judy Daniels http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-544821 Sat, 04 Feb 2017 00:41:37 +0000 http://diy.blogoverflow.com/?p=548#comment-544821 Are you saying that vaulted ceilings should have both vented soffits and peak venting?

]]> By: Maggy http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-523006 Wed, 02 Mar 2016 17:19:02 +0000 http://diy.blogoverflow.com/?p=548#comment-523006 Hi:

Your post is very helpful. Now my question is if you don’t want to insulate the rafters how high can you put the plastic baffles in from the soffit ventilation so the air can escape easy on the ridge vent without causing condensation and mold?

Thank you

]]>
By: John Scharvin http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-501283 Wed, 11 Mar 2015 23:41:48 +0000 http://diy.blogoverflow.com/?p=548#comment-501283 We can receive quite a lot of benefits from installing roof vents, to name a few, it can reduce the trapping of heat; avoid winter condensation; and prevent or defer the future roof repairing(which can cost you a castle). Thank you for coming up with a great article on letting us know different types of roof vents, and how do they work.

]]> By: Kris http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-498835 Fri, 13 Feb 2015 16:48:58 +0000 http://diy.blogoverflow.com/?p=548#comment-498835 Man is that true

]]> By: dave http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-492340 Tue, 25 Nov 2014 18:30:27 +0000 http://diy.blogoverflow.com/?p=548#comment-492340 Old 2 story home, small… Attic has original insulation, years ago some county grant money , they came around and blew in some loose stuff.. I was in the attic a few months ago, checking to see if a bathroom vent that was installed a few years back was actually venting to outside or attic. It was outside, so that’s good. Anyways, I noticed a few baffle chutes here and there, not every joist, they were just loosely set there., at the time i didn’t know what they were. So with winter coming, we get a good amount of ice buildup at the soffet line, so i was going to go up there, make sure the baffles are installed properly, and then maybe put some additional batting up there. I got frustrated with the thought of doing it myself. Just had a contractor look at it; he states: – the house is 80 years old, and the slanted part of the roof is only built with 2 by 4’s, not even 2 by 6’s! And they are 30 inches apart. – He states, he wants to just pack the slanted part of the entire roof with dense packing, just like you would a wall he told me. – does not want to use any baffle chutes, because being only 2 by 4, there is no room for both insulation and baffles ( makes sense technically). – said with the new homes, or even newer homes that have deeper joists, they use just the chutes in the slanted joists, and insulate. Leaving the soffet areas open (to keep colder). All makes sense. – but he states with my situation, you have to make the call and say, let’s attack the heat loss by insulating, over just putting in baffle chutes. – He states because i have a good ridge vent in the roof, along with 2 gable vents, you should be fine with ventilation. – So he would pack in the soffet area, the slanted part of the roof, and then put an additional 6 inches on the attic “floor”.

said that’s what he thinks based on my home, and his experience. He is quite reputable by the way.

your thoughts? I asked about, just making sure the baffle chutes are there, keeping soffets open, but then increasing attic floor insulation. He said, probably, but he still likes the idea of more insulation, and not using chutes.

I just had the second guy come out to look at the attic insulation. These guys come highly recommended in syracuse. He looked at the attic and states: – it looks like someone did come in and blow insulation in the attic floor, and that it is probably sufficient, that part. Not much more could really be added. – said the problem is below the knee wall . said, not sure if i have soffet vents, however, he said the chutes would do nothing, because the insulation that is down in those areas, which of course are very difficult to get to, are filled with about 3 inches of batting, however, there is no more room to put anymore insulation in that area because they are 2 by 4’s. And that with only 3 1/2 inches of insulation, you only have about an R12. Said, that is not enough to keep the heat loss contained below, and that is what is hitting your roof and causing snow melt/ice.

  • said you could pull out what is there, and attempt to put more in , however, it is still a limited space to pack anything higher to get the higher R value.

  • said expense option is to start removing drywall, etc.. and use the spray foam.

  • he said the chutes will do nothing if you remove the insulation, because the point is there is not enough insulation to begin with? He stated that with foam, you don’t need chutes, because the foam insulates all of it. no need for chutes.

I don’t understand that, again, i thought below the knee wall was to be left open?

where is this heat loss coming from that i get the ice?

One side note: he stated, that a metal roof would be good in the future to keep the snow off??

so now, i have both companies saying something about the 2 by 4 thing, and that one guy wants to put dense packed insulation in that knee wall area, and another said it won’t make a difference, because it will still only give me r12, and both say no chutes?

Also, I still don’t know what he is talking about with heat loss i have? He said the attic floor is fine, probably not so much heat loss. but it is the other area where there is heat loss., again, heat loss from where? i thought the only place you get heat loss is from the attic floor? no? and if some state there should be nothing in the soffit area, to keep it cold, then what could he be referring to?

I’d like to call him back , but not sure what question to ask him?

]]>
By: Gary http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-483541 Mon, 28 Jul 2014 09:52:46 +0000 http://diy.blogoverflow.com/?p=548#comment-483541 Roof ventilation is very important when thinking about home improvements. They are cost and time effective in the long run, as they can solve many issues involved in your roof and the temperature and air quality within the home.

]]> By: Dospel http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-362899 Tue, 13 May 2014 08:24:38 +0000 http://diy.blogoverflow.com/?p=548#comment-362899 Roof ventilation is very important but also important is adequate ventilation of rooms. It helps your home get rid of moisture, smoke, cooking odors and indoor pollutants.

]]> By: Rodney Chevalier http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-331204 Mon, 28 Apr 2014 18:32:01 +0000 http://diy.blogoverflow.com/?p=548#comment-331204 Ok, curious about a vaulted ceiling. A friend of mine is having the “blown in” foam insulation installed, in East Texas. The company doing the installation is not installing any baffles prior to installation. Good or Bad?

]]> By: Paul Thomson http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-302345 Tue, 15 Apr 2014 18:15:32 +0000 http://diy.blogoverflow.com/?p=548#comment-302345 This is a great article. I especially like the fact that you touched on baffles as they are not usually looked at with priority when people are considering their roof!

]]> By: James Carter http://diy.blogoverflow.com/2011/12/resuscitating-the-roof-providing-adequate-roof-ventilation/#comment-182994 Tue, 11 Mar 2014 05:42:14 +0000 http://diy.blogoverflow.com/?p=548#comment-182994 Ventilation is an important thing to be remembered before or at the time of renovation and the picturisation of ventilation techniques are awesome in this blog. I really like the way you describe the use of ventilation equipments and the look of the roof. I also want to include that if I use solar panels on the rooftop, then the things will be same and in additonally we saves the electricity as well.

]]>