Your rafters are probably 2 x 6's, you need a minimum of 8" so you have air flow above your 6" insulation. Rip a 2 x 4 in half and nail it to the underside of the 2 x 6's. Make sure to nail the factory sides, (the 1.5" side) not the saw cut side, so your Firring strips are all the same thickness.
The difference in the insulation, provided by wet and dry animal fur is that, the wet insulation fur gives low and weak insulation, while dry insulation fur gives a maximum insulation.
Ceiling insulation can be installed yourself. Purchase the insulation at a big box home improvement store. It comes in rolls and just lay them on the ceiling.
The best insulation for a basement ceiling is typically rigid foam insulation or spray foam insulation. These types of insulation provide good thermal resistance and help prevent moisture issues in the basement.
The best insulation options for a 2x6 ceiling are typically spray foam insulation or rigid foam insulation boards. These options provide high levels of thermal resistance and can effectively insulate the space within the limited depth of a 2x6 ceiling.
The recommended type of insulation for a 2x8 ceiling is typically fiberglass batt insulation. It is easy to install and provides good thermal performance for the space.
The recommended type of insulation for a ceiling is typically fiberglass or cellulose insulation. These materials are effective at reducing heat transfer and improving energy efficiency in a building.
The best insulation for a ceiling is typically fiberglass batts or blown-in cellulose insulation. These materials are effective at reducing heat transfer and can help improve energy efficiency in a home.
Insulation.
Venting to eliminate moisture and insulation in the ceiling.
In the ceiling and the walls
The fur of a coyote provides warmth, insulation, protection, and camouflage.
for insulation