OT Wood Chimney Siding

Steve@Advance · Oct 25, 2016

I recently purchased a house for rental property. I'm in the process of getting it ready for tenants.

One of the jobs I will be tackling tomorrow is replacing the siding on the chimney. What is on there now is the typical Masonite type siding with 1x4 trim on the corners.

My plan is to take the siding off, which has delaminated around the bottom from contact with water, see what other damage is there.

I assume there is metal flashing under the shingles, under the siding. There is no sealer I can see. The composition shingles just butt up against the siding. What keeps water from going under the shingles???

I plan on going back with Hardie Board siding, unless I get a better suggestion.

Any tips on how to seal the edge of the shingles? Or add more flashing?

MarkB_MI · Oct 26, 2016

There should be step flashing under the shingles.

I'm having a hard time picturing what you have, but I assume you have a chimney that has siding on it, and you're talking about where the chimney penetrates the roof. They should have installed step flashing over each shingle and under the siding. Properly installed, step flashing isn't visible because each piece is covered by the next shingle, and the vertical side of the flashing is tucked under the siding.

You can usually re-use step flashing, although it's best to replace it. <a href="http://www.homedepot.com/p/Amerimax-Home-Products-4-in-x-8-in-Mill-Finish-Aluminum-Step-Flashing-68708BX/100081628">Step flashing is cheap.</a>

Geo-TH,In · Oct 26, 2016

Steve, my boy had a house that he had to replace the T 111 siding even on the back side. He hated the fireplace. It let in cold when not in use. Sucked out more heat when used.

Check with insurance co. You may want to remove it.

I don't think tenants may not use it properly, fire waiting to happen.
George

sms · Oct 26, 2016

Just a word on Hardie Board siding. It also will delaminate if exposed to water. Read installation instructions, it says to keep it at least 6" above ground and 2" above roof.
Hardie Installation Instructions

Steve@Advance · Oct 26, 2016

Thanks, I guess it's not as water resistant as I thought.

Steve@Advance · Oct 26, 2016

I wish I could take it out... But it's big, bricked into the wall, would be a major remodel to get rid of it.

Insurance man didn't say anything about it, all he seemed to care about was the age of the roof. Didn't even mention the rotten wood on the chimney!

Steve@Advance · Oct 26, 2016

There has to be some kind of flashing. Evidently it's up under the siding and shingles, I'll find out when I take it apart.

I'm sure I'll be replacing it or adding more.

Thanks!

Leroy · Oct 26, 2016

What kind of a chimney do you have that has siding on it? And how would you ever put siding on a chimney? And why would you want that fire hazard?

RayP(MI) · Oct 26, 2016

Double or triple wall metal stack?

MarkB_MI · Oct 26, 2016

I was recently in the attic of a McMansion. From the outside, it appears to have substantial brick chimney. From the inside, you can see the whole thing is a hollow shell constructed of OSB with a brick veneer.

OT Wood Chimney Siding

Steve@Advance

Well-known Member

MarkB_MI

Well-known Member

Geo-TH,In

Well-known Member

sms

Well-known Member

Steve@Advance

Well-known Member

Steve@Advance

Well-known Member

Steve@Advance

Well-known Member

Leroy

Well-known Member

RayP(MI)

Well-known Member

MarkB_MI

Well-known Member

Similar threads