Old Brown Attic Insulation

Department of energy notes that 75 percent of mineral wool is derived from post industrial content.

Old brown attic insulation.

The particles of the insulation have an accordion like texture. 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. Here are some guidelines. 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 the insulation lays flat. Brown insulation is available in either blanket rigid foam board or loose fill form. Old attic insulation is often inefficient and could lead to unnecessarily high energy bills. Vermiculite insulation has a pebble like appearance and typically is a grayish brown or silvery gold color.

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. If your home was built before 1990 chances are you have one of the old attic insulation types. 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. It is made from a natural mineral material that is mined from the earth.