Construction guys: roof / chimney seal?

[OTB]

http://www.stovesonline.co.uk/wood_b...-flashing.html

[Gas Man]

OTB in the bottom of the 8th inning smacks it out of the park!

[Rangerscott]

I was goin to post that boot. Even insulated i wouldnt use one.

[Hydrant]

Those boots are what roofers use all the time to seal up on metal roofs.

At least the roofers we use when we have a roof penetration for a gas line, vent, or refrigeration line. Just use some 100% silicone caulk on the bottom lip of the boot, and then around the top where it seals the pipe. Some of those boots will even come with a hose clamp big enough to go around the pipe.

If its the corrougated roof, like the galvanized metal im thinking off, that has like rolling waves in it, then getting anything to do a good job will be tough with the waves. If its more of a flat panel then those boots are where its at.

[Rangerscott]

Theyre for vent pipe, not exhuast pipe.

[Hydrant]

http://www.fluesystems.com/flashings...ite_square.htm

Square Base Dektite Soaker Flashings
Dektite is a one piece flexible pipe flashing designed to accommodate flashing of various pipe and flue materials onto a range of profiled sheets. The Dektite system provides a flexible solution for flashing problems. Square base Dektites can be used on pipes, vents and flues where the roof pitch is under 11°, in snow zones, on high pitched roofs over 45° and on deep profile roofs.


Silicone covers temperatures from -60°C to 200°C
(-76°F to 382°F)

[Particle Man]

I have a simpler solution: next time it rains, climb up there with an umbrella.

[Hydrant]

Just jam an umbrella inside the pipe and that should be fine.