Does the job and easy to do.
Sawdust insulation in attic old.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.
Vermiculite and perlite are older granulated insulations with relatively low r values which describes the product s thermal resistance.
Before you install insulation over the sawdust check the attic for old knob and tube wiring commonly installed from the late 1800s until the late 1950s.
Shredded newspaper or loose fill cellulose was another common insulation in the past.
I have two questions.
1 what is the best bang for my buck ie vs r value 2 should i take out the sawdust before putting new insulation in.
Sometimes wood products such as sawdust or balsa wood were used at insulation in old homes but these are very ineffective.
My house has an original old part and a new addition.
To improve the comfort of the home pictured above one solution is to remove the wood chip insulation and re insulate the entire attic cavity with blown in fibreglass insulation.
Affix rigid foam insulation to the attic side of the hatch or door.
I have an old house with an attic that is insulated with saw dust.
If your home is old enough 19th century your attic insulation that looks like sawdust could be sawdust.
That is why we often just add new insulation right over the top of these old ones in an attic it is just not worth the mess of cleaning the old stuff out.
In the original house insulation fiber is covered with hardboard so you don t breathe that fiber when you are in the attic.
I have warm attic in old part and cold attic in addition so i have both of those setups.
Faced insulation should not be placed on top of existing insulation in the attic.
Newspapers sawdust catalogs and just about any cheap or free cellulose have all been used to provide minimal insulation in old homes.
In order to increase energy efficiency i would like to re insulate the attick.
Knob and tube wiring is made of two individual wires that run through and are connected to porcelain insulators.
Attic insulation looks like sawdust.
This page contains a list of research papers on the use of sawdust as an insulation material.
Seaweed in the maritimes and sawdust in the rest of canada were common insulation materials in the old days.
Commercial extruded polystyrene sheets and fiberglass insulation are expensive especially in the quantities required in solar passive homes hence the importance of local replacement materials.
All about wood chip insulation october 27 2014 1 01 am.
Although insulation professionals will handle the installation for you here are some things to keep in mind about removing old insulation and installing new insulation over old insulation according to energy star.
