Cellulose insulation is very good at fitting around items in walls like pipes and wiring, leaving few air pockets that can reduce the overall efficiency of the wall. Neponset Valley Construction is the best cellulose insulation contractor in MA and can properly insulate your home. Dense pack cellulose can seal walls from air infiltration while providing the density to limit convection, when installed properly.

Cellulose insulation is safe. It is made of paper, but the chemical treatment provides it with permanent fire resistance. There’s been statistics generated by the fiberglass industry warning that cellulose could burn, however independent testing confirms that it is safe. Cellulose is approved by all building codes. In fact, many professionals consider cellulose to be more fire-safe than fiberglass. This claim rests on the fact that cellulose fibers are more tightly packed, effectively choking wall cavities of combustion air, preventing the spread of fire through framing cavities.

Wet insulation of any type is bad. But cellulose is hygroscopic. It’s able to soak and hold liquid water. Undetected leaks can wet cellulose causing it to sag within framing cavities. Water leaks can compress the blanket of fiber and in extreme cases, can create a void space, degrading its thermal value. Another concern is that chemicals used to protect cellulose from fire make it potentially corrosive in wet environments. Tests conducted by the Oak Ridge National Laboratory show chemical treatments used to treat cellulose can cause metal fasteners, plumbing pipes and electrical wires to corrode if left in contact with wet, treated cellulose insulation for extended periods of time.

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