Air Space Along Side Of Chimney In Attic
The space between the center and outer walls circulate air for more cooling.
Air space along side of chimney in attic. Cut two pieces of sheet metal to cover the chase opening. How to air seal a metal chimney or flue vent pipe option 1 air seal at the bottom of the framing. Because the pipe gets hot building codes usually require 1 inch of clearance from metal flues 2 inches from masonry chimneys to any combustible material including insulation. If your chimney runs through the interior of the house look in the attic to see if it is centered in its framed opening.
The attic loft will be used as semi conditioned living space and i am concerned about 1. For exterior chimneys a 1 inch minimum air space must be maintained between the chimney and combustibles. Potentially improving the efficiency of the house overall. Insulated chimneys differ further from air cooled systems in their structure.
I ve been thinking that i might be able to insulate around the chimney in the loft space. The solid insulation fits between the inner and center walls. The opening around a furnace or water heater flue or chimney can be a major source of warm air moving into the attic. Fasten the sheet metal to the framing and seal all edges and seams with fire rated caulk.
Unless you re sure of the type of chimney you ve got use a 2. If it s a b vent typically you need to leave a 1 clearance around the vent take a look at the listed clearance for your particular. Can insulation be put next to the matel chimney in the attic area for a gsa furnace. If it s pressing against the opening to one side or another that means.
Also the 2 inch air gap that i recommend is generous for some forms of insulated metal chimney which only require a 1 inch airspace. Three wall chimney systems use a combination of air cooled and insulating components. Measure the four sides of the chimney where it goes through the ceiling framing and add up the. Access the attic through a crawl space in the ceiling using a stepladder or use or the attic stairs.
Bill some metal chimneys require an air space while others are rated for zero clearance. Allow 1 inch of overlap. What kind of flue is this.