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Is fiberglass insulation OK to use on a propane garage heater single wall exhaust vent pipe where it passes through an attic?
Wiki User
∙ 15y ago
Not only is it wrong to use on single wall pipe but is ABSOLUTELY WRONG,WRONG to use single wall pipe!!! replace immediately w/double wall pipe. You have an extremely dangerous fire hazard! almost any gas fueled device produces exhaust which can get extremely hot. A secondary benefit(besides not turning into a crispy critter) of using properly installed double walled pipe is no need to wrap w/insulation. Not only is it wrong to use on single wall pipe but is ABSOLUTELY WRONG,WRONG to use single wall pipe!!! replace immediately w/double wall pipe. You have an extremely dangerous fire hazard! almost any gas fueled device produces exhaust which can get extremely hot. A secondary benefit(besides not turning into a crispy critter) of using properly installed double walled pipe is no need to wrap w/insulation.
Wiki User
∙ 15y ago
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What material stops heat from escaping through the roof?
Insulation, such as fiberglass.
The use of fiberglass insulation in the outer walls of a building is intended to minimize heat transfer through what process?
by conduction process.
What is the r value of 8 inches of fiberglass insulation?
technically unfaced fiberglass insulation has an r value of 21 for 6 inches but that's if its perfectly installed, no gaps, no crushes, no air moving through it, no moisture, and its completely in contact with the interior heated surface. Since its unfaced, we assume it will have moisture and air moving through it and an average installation, it's likely R-13 or less.
How do you remove insulation from clothing?
To remove insulation such as fiberglass from clothing, you must put them through a cycle in the washing machine. Ensure that you are wearing gloves before handling the contaminated clothing and place the items in the washing machine drum. Add laundry detergent to the machine and wash as normal.
How do they make fiberglass resins?
Fiberglass is obtained by extrusion of melted glass through extremely small orifices.
Can roll aluminum insulation be installed on top of blown in insulation?
Fiberglass and cellulose insulation work by slowing down heat transfer from one source to another. That's why the thicknesses of those insulation's are crucial for performance. Also, fiberglass and cellulose only resist heat transfer, they don't block or reflect it so it eventually escapes through. Perforated radiant barrier can be installed over top of existing attic insulation to form a reflective cover to enhance your other insulation. When installing radiant barrier over the attic floor you must use the perforated radiant barrier for maximum breathability. Moist air that is created inside your home must be able to escape as it rises through your ceiling. If a perforated radiant barrier is not used, the moisture will be trapped in between the barrier and your ceiling. When trapped this will cause condensation to form inside the building materials and insulation creating damage and mold. - EcoFoil
Is a fiberglass a conductor or insulator?
Fiberglass and foam board insulation work well because they interfere with the convective flow essential to that mechanism. The tiny air- or gas-filled spaces in the insulator frustrate heat flow because they greatly extend the time necessary for convective and conductive flow to occur. Foe heat to move through such a material, each cell -- and there are millions -- must relay the heat across it. The longer it takes, the slower the heat flow.
What is the purpose of bubble insulation?
The purpose of bubble insulation to prevent or reduce the transfer of heat escaping from or entering into homes through walls and roofs. It provides an alternative to conventional insulations such as fiberglass, cellulose and spray foams and usually consists of one or two layers of bubble wrap that are laminated between layers of foil that serves as a reflector.
Does insulation rated R35 allow more or less heat to pass through it than insulation rated R1?
R35 insulation allows LESS heat to pass through than R1 insulation.
How does air insulate?
Air insulates heat transfer as well as (lower voltages of) electricity basically by just being there. Heat takes time to transfer between media. Consider a house's wall cavity without added insulation. There is a layer of drywall on the inside, followed by a layer of air, followed by a layer of wood on the outside. So for heat to travel from the inside to the outside it has to start vibrating the drywall molecules faster first (which is what we do when we heat anything up). Then it has to vibrate the molecules of air faster (and those buggers move around pretty easily). Then it has to vibrate the wood molecules faster, then the siding even. So air is just another layer that has to be passed through. The longer we make the heat take to transfer, the better insulated it is. Now add some fiberglass insulation to your house's wall cavity. Do you know that it is counterproductive to stuff as much insulation in as possible? Know why? Because air helps the insulation pass heat through more slowly! Imagine it... if there are thousands of layers of fiberglass, and air.... it's going to take that poor heat energy a while to vibrate all those molecules. But if you stuff that air space full of insulation.... the 'insulation' starts to behave like a solid chunk of fiberglass, which doesn't insulate as well as thousands of layers of fiberglass and air.
How does heat escape an empty warm house with loft and cavity wall insulation and new double glazing using energy transfer and how does the insulation reduce the rate of the heat loss?
Heat will always migrate through anything. The rate is the only thing we can control. Dead air space (motionless air) is the best natural insulator. Fiberglass insulation is used to try to trap as much air and hold it as motionless as possible. This is why you should never compress insulation; you're pushing out the trapped air.
Can you put kraft faced insulation in your attic over already installed blown in insulation and if so would you put the paper side down that is toward the rooms below?
I went to a seminar about attic insulating materials and this is what I learned. If you already have blow-in insulation in your attic you shouldn't need more fiberglass. Instead, you will want to install a reflective radiant barrier insulation. Fiberglass and cellulose are designed to slow down heat escaping so you eventually lose most of your heat through the ceiling regardless. You need something to re-direct the heat once it passes through the blow-in insulation. Radiant Barrier will reflect a majority of the heat back once it escapes your blow-in insulation. I bought some Ecofoil online and just rolled it out over top of my existing blow-in insulation, it was very easy. When installing radiant barrier over the attic floor you must use the perforated radiant barrier for maximum breathability. Moist air that is created inside your home must be able to escape as it rises through your ceiling. If a perforated radiant barrier is not used, the moisture will be trapped in between the barrier and your ceiling. When trapped this will cause condensation to form inside the building materials and insulation creating damage and mold.
