Foil bubble insulation will prevent the warmth from passing through to the crawlspace or basement. Radiant barriers work very well for floors and crawlspaces especially when underfloor heating systems are deployed. This is vital to get right so make sure when the job is finished that nothing has fallen in behind the vents or anything is blocking the airflow through them.īubble rolls in your Floors, Crawlspaces, and Basements If you wish to use a bubble roll on your external wall then again you can vent the cavity with a breeze block or wall vents can be used to allow for the circulation of air from bottom to top.
Again just make sure there is plenty of space for the movement of air and nothing will get trapped in behind that wall. Again the bubble roll can be stapled to the stud framing at whatever centers the stud framing is at. This is a quick and easy fix for your attic and will be very effective at reducing your heat loss and reflecting your heat back into your home.Īgain much like with your attic it is recommended that your bubble roll can breath here to avoid any buildup of high moisture content air within the cavity space behind the bubble roll. A simple staple gun and some elbow grease will get the job done in no time by stapling the bubble roll to the rafters. This will over time decrease the bubble rolls performance, so maybe best to set your alarm for once every 6 months to go up and wipe off all that dust.Īnother application for the bubble roll in your attic could be to the underside of your rafters. Another downside to this application is the buildup of dust over the reflective foil on the upside. Perforations the size of at least 5 perms are recommended here.
This could over time cause mold builds upon the underside of the reflective insulation or the glass wool / mineral wool insulation. However, there are some precautions to take as per the Reflective Insulation Manufacturers Association International whereby they advise that perforations be installed into the reflective insulation to allow for the movement of air and vapors that may get trapped between the reflective insulation and the ceiling. The most common application here is laying the bubble roll over the glass wool or mineral wool insulation. Other insulation types like Polyisocyanurate insulation (Polyiso / PIR) also have a foil face and again this is purely as a reflective barrier and will act similarly to bubble rolls.īubble reflective insulation in your attic space Radiant barrier can also be applied to insulation during the manufacturing process you will notice some companies such as Owens Corning / CertainTeed / Johns Manville etc all fabricate a foil-faced glass wool insulation. It is also possible to use a white shingle tile or a reflective tile on your roof which will perform quite well to reflect the heat outwards but will not perform as well as a bubble roll will and also a white shingle or reflective roof is not always aesthetically pleasing to the eye. By installing the reflective bubble roll it will reflect this heat outwards thus keeping the inside room temperature at a comfortable level. This will, in turn, heat up the OSB underneath which will also, in turn, heat up the under roof side of the OSB thus heating up the attic space. Well first of all if you do not use a bubble roll in your roof space what will happen is your shingles will get very hot on the outside from the beating sun which will, in turn, warm up the underside of the shingles. So what happens when you put a bubble wrap product into your roof. See locations below and applications of this product. The application in which this product is used is very much similar to the radiant barrier. It may be worth noting the perforations may be required to be inserted into this product if it is being placed in a location with little to no ventilation in a crawlspace or roof or attic. This bubble insulation will act as a trapment for air and will slow the passage of air if not stop the passage of air through the product. They would both look very similar in their appearance with both bein foil-faced but the main difference is the bubble insulation underneath the foil. Bubble roll insulation will provide an equal performance as to radiant barriers and in some cases, both can be confused as being the same product.
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