Insulating Walls with Reflective Foil Bubble Insulation
Uploader Comments (InsulationStop)
All Comments (13)
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ladies and gentlemen...you are looking at about $140-180 just for that one wall of foil barrier. Plastic barrier is only about $10-15 dollars for that wall.. LOL budget is the new trend. Ill stick with the plastic rolls
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@InsulationStop I have a wall in my attic garage that separates the attic from a room in my house. it currently has exposed batt insulation with kraft paper on both sides. what are the advantages, if any, to using foil bubble insulation vs rigid foam boards to cover this existing insulation? If I used bubble foil could I can foam the top and bottom seams to prevent any wind washing? thx.
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In Canada the practice is to sheet the roof... us a reflective heat barrier (or reflective insulation ie. Foil Bubblewrap) on the underside of the sheeting followed by furring strips covered with dense foam to create an airspace for convective heat. Then insulate with batts, VB and tuck tape.We also require functioning soffits, a baffle system if you are closing in the attic living space with drywall. roof vents every 3 rd rafter for the convective heat to escape.
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i am wondering... can you add a chip board on top of that or you simply have it look that way?
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Thanks for the prompt response.
Nick, thanks for your help this morning. Loretta
endlesssummerlc 6 months ago
@endlesssummerlc Loretta, it was my pleasure. Please let me know if we can help further.
InsulationStop 6 months ago
Yes, and you are right. You can sheetrock on top of the foil as shown in the video if you run furring strips over the foil before the sheetrock to create an airspace. The other alternative is a product called "staple tab" that runs widths similar to fiberglass insulation. This goes into the stud cavity and can be installed into the cavity approximately 3/4" with the tabs even with the edge of the stud. This allows for the necessary airspace as well and sheetrock can then be applied.
InsulationStop 1 year ago
Lumber needs to breathe, that is why they don't recommend vapor barriers in walls, that stuff is a vapor barrier.
HomeEnergyNow 6 months ago
In building construction, a vapor barrier is used to the interior. That is what the kraft or brown paper on fiberglass insulation is used for. If you use unfaced insulation, you then use a vapor barrier. If there is a concern, like you have, a perforated radiant barrier can be used in this application or regular wall construction. This will allow some moisture transfer. If a finished wall is desired, firring strips should be used to create 1/2" airspace between radiant barrier and finish.
InsulationStop 6 months ago
that foil is made like ""Aluminium foil""?is it the same ?
georgel19841 1 year ago
@georgel19841
No georgel this is high grade commercial aluminum foil that is designed to reflect radiant heat. It's tear proof with additional materials to strengthen the product. Aluminum foil is completely different and certainly not to be used as an insulation material.
InsulationStop 1 year ago