Wet Spray Cellulose Insulation R Value
It s also difficult to install when the temperature is below freezing plus it still can t offer the r values that bibs offers.
Wet spray cellulose insulation r value. Wet spray cellulose or spray in place cellulose is cellulose sprayed into an open cavity with a mist of water. Wet spray cellulose can risk introducing moisture into walls. Pit falls of wet blown cellulose.
Metric r2 6 per 100 mm. Either carefully or by making a phone call. Recent testing has conﬁrmed that there is no air inﬁltration or r value advantage in using wet spray cellulose to insulate wall cavities.
The cellulose insulation method creates lots of dust but it gets the job done. Cellulose provides an r value of approximately 3 5 per inch. The thermal conductivity of loose fill cellulose is approximately 40 mw m k r value.
If you hire a pro they use wet spray cellulose which adds a small amount of water to help control the dust and to slightly increase the insulation value per inch. This doesn t represent the whole picture of thermal performance. Damp spray cellulose fills cavities without voids and it covers pipes and wires without gaps creating a house that according to the cellulose insulation manufacturers association is 30 to 40 more effective at stopping air infiltration than a similar house insulated with fiberglass batts installed in the typical manner.
The study also concluded wet blown cellulose is not an effective air barrier. The r value per inch decreases slightly as density is increased from 3 0 to 4 0 lbs ft3. Lastly there is spray foam insulation.
Your standard industrial cellulose blower has a 2 or 2 1 2 inch hose. Imperial r3 8 per inch which is about the same as or slightly better than glass wool or rock wool. How to install wet spray cellulose.
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