Install a continuous layer of rigid polyisocyanurate.
How to install loose fill attic insulation.
Patch the holes with tape or canned spray foam see more information on this technique in the article on this page 1.
This step is all about making sure the loose fill insulation is properly distributed.
Whether you are removing loose fill attic insulation for replacement with new insulation changing insulation types or are removing insulation because of water or wildlife damage doing it safely is the first step.
The trick here is to just get the loose fill insulation out of the bags and into the area.
Make sure the fill s depth is uniform across the attic.
Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping.
The hole is then.
Connect the hose to the insulation machine.
To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space.
The first step in loose fill attic insulation removal is determining what type of insulation you ll be working with.
Clumps of loose fill insulation will not make a very good barrier between the elements.
Calculate how much you need.
Generally speaking without any preexisting insulation in place it takes 10 12 inches 25 4 30 5 cm of loose fill to achieve an r rating of about 38 40.
Install the fabric and then strap the ceiling with 1x4s or 2x4s.
The bulges between the strapping won t interfere.
Connect the hose to the blown in insulation machine.
2 rent a blowing machine.
Use the shovel and begin spreading the loose fill insulation around the space.
To install blown in insulation in existing walls holes are drilled at the top of each stud space usually on the exterior and material is blown in via a long flexible hose.
Then feed 1 2 a bag of fill into the machine and turn on the hose to start blowing the insulation.
Do not worry about small piles that may develop as you do this.
Check pipes and vents.
Choose your insulation type.