Guest guest Posted July 5, 2008 Report Share Posted July 5, 2008 I'm going to return my 70 year old house that had an unvented attic from the time it was built in 1938 until I vented it in 2001, back to an unvented attic space. From what I've learned 'building codes', which state that ventilation in attics is necessary' are just that, " building codes " . They are for people who are " building " . My house was already built so it doesn't have to come up to " building codes " . That is what I learned. Buildings built in different eras were built with different building codes and it doesn't always work out to take a 1938 house and make changes to come up to 2008 " building codes " . They are two different creations. One is not necessarily inferior or needs improving. Simply putting vents in my attic that a roofer said I needed to bring attic up to " code " , caused nothing but trouble in my old house, allowing critters to get into attic and build nests, later die and leave their dead body rotting there, but I had an ant trail up to attic that I had to get rid of, but mostly it increased the circulation of " outside air " , which is sometimes quite humid, into the interior of the house and into interior wall cavities causing all kinds of problems. Today's houses are built with attics that are better sealed off from house below. The whole house built today are much more air tight as we all know. My house just let the air from the attic into the whole house, like having a bunch of open windows in the house only they could never be closed no matter how undesireable the weather outside was, so essentially I had open windows in very hot and humid weather, even rainy weather; and in below freezing weather. I have already started to take them out. I had 21 vents taken out a couple of weeks ago: 14 under soffit vents and 7 passive roof vents and areas that they were removed were restored with wood and where appropriate double layer of shingle to try to restore roof back to the way it was, and I have already felt a GREAT improvement in house. I had them stop at two vents, a turbine and one is a power vent temporarily so there is some ventilation up there until I can get the insulation put back in. I had all old insulation removed and attic cleaned. As soon as insulation is back, the last two vents will either be covered over rather than removed, in case I decide to use one or the other of them; or removed as the others were. Still reading up on attic ventilation to decide whether to leave any or not but so far house feels MUCH better but on very humid days the humidity in house still goes way up, so probably both will be removed. The attic area was fine before venting and so I think back to no vents will be the right thing to do but taking my time to decide since I now have learned what doing the wrong thing can cost lots of $$$...not only in health costs, loss of job wages (I have only been able to work parttime due to fatigue), but in damage to home and all the $$$ that goes with those two things (loss of home value and cost of repairs, pick one or in many cases BOTH). > > Barb, I so agree. My only (and it is an opinion) comment for you about the attic thing is if you have any vents I believe it is a must to also have an attic fan. Quote Link to comment Share on other sites More sharing options...
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