Silicone boot flashing and chimney pipe temperature

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
Status
Not open for further replies.

rdmarshall

New Member
Feb 5, 2016
1
Clayton GA
I am putting a barrel stove in my workshop (NE Georgia -- often chilly in the winter). It has a 6" flue. I plan to use 6" single-wall pipe, straight up (about 9') to penetrate through metal roof panel, then another several feet to a chimney cap above roof top.

I am thinking about flashing the roof penetration with a red silicone boot flashing, such as this.

The spec sheet for the flashing says that it tolerates temperatures as high as 500 degrees intermittent, and 437 degrees continuous.

Do you think that the exterior of a 6" chimney pipe about 10 feet from a barrel-stove flue outlet would be likely to exceed these limits? I will be burning scrap wood, such as cut-offs from making wood bowls, furniture, cabinets, etc., and other firewood.

Thanks.
 
Yes - do not use single wall pipe in place of a class a chimney, single wall is fine to use between the stove and ceiling support box, after the support box or cathedral ceiling box you need class a chimney. That's code.
 
The surface of class A high-temp chimney pipe shouldn't exceed those temps under normal burning conditions. Put a flue thermometer on the connecting stove pipe and stay under 500F, single-wall surface temp.
 
The install gurus here generally recommend metal flashing for the roof penetration.
 
Status
Not open for further replies.