Old Brown Attic Insulation

Brown insulation is made up of mineral wool which comes from either rock natural materials or slag the scum on the surface of molten metal. Department of energy notes that 75 percent of mineral wool is derived from post industrial content. Dirty attic insulation on the other hand could have been the result of pests like rodents and birds that contaminated the insulation which can lead to an unhealthy home.

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Believe it or not there are situations in a home when you should remove the old attic insulation before adding more over the existing and in this short video.

Old brown attic insulation.

If your home was built before 1990 chances are you have one of the old attic insulation types. Vermiculite insulation has a pebble like appearance and typically is a grayish brown or silvery gold color. It is made from a natural mineral material that is mined from the earth. Loose lay greyish brown insulation with wood or paper chunks cant tell to scared to touch it also has green and pink red flecks like paper but looking atr iut in operson it looks greyish more so than brown but when i take a picture it looks more brownish in the picture could be the light playing tricks but in real like its a couple more shades.

If either of these situations are the case it s time to remove insulation. Brown insulation is available in either blanket rigid foam board or loose fill form. Vermiculite loose fill insulation is one of the most common household materials that contains asbestos. If the insulation particles have a certain colour usually grey brown or silver gold.

Here are some guidelines. The particles of the insulation have an accordion like texture. If the insulation lays flat. Old attic insulation is often inefficient and could lead to unnecessarily high energy bills.

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