Vermiculite Chimney Insulation

Fireside s poured insulation is a mixed vermiculite masonry material used for chimney flue insulation.

Vermiculite chimney insulation.

Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated. Vermiculite also known as micafil is a excellent insulating material capable of withstanding temperatures in excess of 1000c the free flowing properties of loose fill vermiculite make installation very simple with the flue liner already connected to the stove pipe and register plate in place and secure leave the liner protruding from the top of the chimney or pot then pour the insulation. It can be used to pour back down the chimney filling the void between the brick chinmey and the flexible flue liner. I am a member of an installers forum.

A chimney that is 13 long x 13 wide and is 15 tall with a 6 liner installed needs 8 bags of fireflex mix. This can promote damp walls in rooms that previously were problem free. Everguard insulation mix is a ready mix vermiculite based insulation material. 100litre bag of vermiculite insulation for backfilling the chimney around the liner.

Simply prepare by gradually adding 4 7 gallons of water. Vermiculite is a light weight naturally occurring mineral which is an excellent heat insulator. Exfoliation occurs when the mineral is heated sufficiently and commercial furnaces can routinely produce this effect. This stuff absorbs and retains water so if your chimney leaks water at all the insulation material will gradually get wetter absorbing like a sponge.

Large commercial vermiculite mines currently exist in the united states of america. Update 26 sept 2018. Vermiculite forms by the weathering or hydrothermal alteration of biotite or phlogopite. How many vermiculite bags of fireflex chimney insulation mix are needed for your installation.

I have my reservations about these methods. Pour the mix around the chimney liner while shaking the liner. Vermiculite back fill insulation 100 litre bag vermiculite gives perfect coverage of insulation in difficult to reach places as well as an easy to manage level fill. Vermiculite also known as micafil is a excellent insulating material capable of withstanding temperatures in excess of 1000c the free flowing properties of loose fill vermiculite make installation very simple with the flue liner already connected to the stove pipe and register plate in place and secure leave the liner protruding from the top.

Vermiculite has many uses such as loose fill insulation for attic spaces block core fill insulation insulation around chimney flues and in gardening applications.