Dense Pack Cellulose Insulation Problems

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Dense pack cellulose insulation problems.

Admittedly a quality dense pack job is nearly indistinguishable from an inferior one. I think i mentioned this earlier. In an airtight cavity air pressure can hamper the delivery of insulation. My energy auditor is telling me to have dense packed cellulose blown into the walls and also add some over the fiberglass batts in the attic.

I would love to insulate the walls but don t want to create a mold problem. 32 dense pack cellulose insulation. The r value per inch decreases slightly as density is increased from 3 0 to 4 0 lbs ft3. I want to dense pack the walls with cellulose insulation and loose fill the attic area.

Here are some answers. The r value of wet spray and dense pack cellulose insulation depends slightly on its installed density and the exact type of cellulose used but commonly ranges between 3 6 and 3 8 per inch 1 as measured by the standard astm c518 test. This photo from german equipment maker x floc shows the company s dry injection system for cellulose insulation in action. Me thods and verification of density machine settings the air to material ratio is very important.

The difference is how tightly the cellulose is packed into the cavities and you often can t tell just by looking at it. Cellulose fibre insulation cfi is like the rodney dangerfield of insulations it can t get no respect. For most machines about 8 000 watts is good. Dense packed cellulose insulation can be a superior product to commonly used batt insulation but somehow it has developed a bad reputation in canada.

Solving back pressure problems with dense pack cellulose insulation. Cellulose insulation must be kept dry. Me thods and verification of density working out of a pickup inadequate power supply. Dense pack cellulose insulation.

Cellulose insulation problems cellulose settles leaving your home open to air movement. A recent one on cellulose insulation and air vapor barriers one of a flurry on the topic tipped the scale toward a broader response as we continue to dispel this enduring myth. Good afternoon i live in buffalo ny and am remodeling my home. When we blow them with insulation we dense pack them to around 3 5 lb ft 3 56 kg m 3 density the leakage drops to 0 04 to 0 2 cfm ft 2 at 0 3 in.

Cellulose insulation can absorb up to 130 percent water by weight. Modern cellulose settles up to 20 percent according to house. Higher ratio will increase density. Dense packed cellulose.