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3

Whether you can or not, you probably don't want to. If you're going to go through the trouble trouble of pulling out the fiberglass, you might as well just replace it with cellulose, which has a significantly higher R-value (around 50% higher per inch than fresh loose fill fiberglass). Your settled fiberglass, on the other hand, has a significantly higher ...


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Attach to the stud face. The vapor barrier is not as effective if stapled to the stud sides. And as you say, the fill won't be ideal. (are your external walls 2x4 or 2x6?) The paper on the fiberglass is the vapor barrier. And a barrier is definitely needed where you live. Optionally, you can use unfaced insulation and a plastic sheet vapor barrier. ...


3

Why not use a sheet of rigid foam insulation? It will block light and heat. You can cut it to size and, depending on the frame of the skylight, you may be able to wedge it in the frame without attachment devices. If you need to use something to hold it up, double faced tape on the glass will be fairly easy to remove without permanent damage to the ...


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The important comparison is not between double glazed and single glazed windows. It is between specific windows and their specifications because there are high quality single glazed windows and low quality double glazed windows and even among one group or the other, thermal and acoustical performance can vary with manufacturer and part number. Generally ...


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He said that double-glazed glass (two sheets of glass with an inert gas in between) was almost useless from the point of view of sound insulation. That is not true, but it may depend on the loudness of the outside noise, it's frequency profile and what noise level you consider acceptable inside. Double glazing window, especially when acoustic glass ...


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The typical reason for specifying mineral wool in building construction is for fire-stopping because other materials tend to be more cost efficient insulators. Water-repellent does not mean water-proof. Mineral wool unlike - EPS or XPS - can hold moisture. Once wet, the water will negate any insulating properties because water is an excellent thermal ...


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I can verify boron treated EPS degrades over time. Boron is water soluble, so the treatment doesn't last through more than a couple wet seasons. There's apparently a new insecticidal treatment being sold under the trademark Preventol. It's unclear how many years this treatment will remain effective. In any case, I think soil treatment should be used ...


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The more you compress insulation the more the R value goes out the window. You should expect some settling but you shouldnt be pulling it out in chunks or sheets. I agree with Zhentar on pulling the old insulation as it is adding weight to your drywall ceiling (and you may not want to add to it) plus compacted that much it is not earning its keep. As far as ...


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Sounds like your problem is insufficient attic insulation. In the summer, your attic gets hot, and that heat radiates down into the second floor. In the winter, your attic gets cold, and sucks heat out of your house, aided by the stack effect. Improving the insulation on your attic flow will help both of those problems. The typical approach is to blow ...


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Your inspector should be able to grant a waiver for existing conditions if code compliance is a concern. If that is the case, I would wait and ask him/her for a solution that is acceptable. Hopefully something a bit shy of bumping the basement wall out 6", LOL. You could put the 1/2" foam behind, than cover the pipes with split foam pipe insulation. I try ...


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You can install insulating foam panels directly to the existing roof membrane (decking). The panels are backed with OSB wood panels (the OSB would face out/up). So basically it would be roof decking, then foam insulation, than bonded OSB wood decking. Over it all you would place roofing felt and roofing material. Check out this short video.



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