Improper insulation Installation. HELP


Old 07-04-07, 08:22 AM
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Join Date: May 2007
Location: MA
Posts: 11
Question Improper insulation Installation. HELP

I have a dilemma and I canít find the answer online. I have a 1940ís cape in Massachusetts. The upstairs of the house is typical of a cape. The Living space down the middle of the house and crawl space on the front and back of the house. The upstairs gets incredibly hot in the summer. Iím not sure how to remedy this problem. The house has a ridge vent and thatís all. However the living space is completely covered in fiberglass insulation. The knee wall is insulated and the ceiling is insulated. From what I can tell this insulation is blocking any airflow to the ridge vent. Is this correct? If not how do I keep the heat / AC in the house and let the crawlspace ventilate properly? I donít know if this makes a difference, but there is no insulation under the floorboards in the anywhere upstairs. I have only been in this house for 2 years and this work was done within the past 7 years. Iím desperate to make it correct before it starts causing real damage.
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Old 07-04-07, 09:26 AM
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Location: USA
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I've seen a lot of houses where the rafters are completely plugged with insulation, allowing no air movement above the insulation. Typically, this is in homes with 2x4 rafters, and they just cram the entire thing full of insulation. This is especially true in bungalo style 1 1/2 story homes where the upstairs living space is reclaimed attic space. Is this pretty much the situation in your home?

If the lower attic area is not being vented, one could add a few can vents to the lower portion of the roof, in the event that it is not currently being vented due to the rafters being blocked with insulation. But its likely that nothing you do is going to make a dramatic effect. You can't change the fact that your ceiling is so close to your roof.
Old 07-05-07, 05:06 AM
airman.1994's Avatar
Join Date: Dec 2005
Location: VA
Posts: 5,632
Ridge vents won't get it done alone! You need a way for the air to get into the attic. Make sure insulation is not blocking air flow. All the ventilation in the world is not going to help you much. The problem is radiant heat.
Old 07-07-07, 07:20 AM
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Join Date: May 2007
Location: MA
Posts: 11

thanks for the help. I may just have to live with it for a while until we put on a shed dormer on the back of the house. That will be a whole bunch of other new posts.

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