Got a leak. Need advice

[vatmark]

So we have had some crazy storms before but never had any issues with leaks. A few days ago we had a really crazy storm. Raining sideways. I hear dripping and look and see that water is leaking from the wood box above our wood stove. No water was coming down the pipe. No water in the stove. If you see the pictures I attached and the wood box, water was coming from the left side a few inches forward from the back of the box. The pipe comes up from the wood stove into the box and then somewhere in there there is an elbow. I am going to assume the water was somehow coming in and then dripping off that elbow but I can't be positive. That is the only place where water was seen. Our master bedroom is behind the wood stove and there was no water in there. There is no attic access so we can't check anything there.

My husband will be getting up on the roof at some point after this crazy heat subsides to check things out. Here's what we plan to check: storm collar, storm collar caulking, flashing, shingles up from the chimney. Is there anything else we need to check? Also if it is missing caulking on the storm collar what is the name of the product we need. I assume something high heat. If it is caulking around the flashing what is the product we need? Any other products you think we need? My husband wants to just get up there once so I want to make sure he has all the correct products when he goes up there even if we don't need them. If we can't figure out the issue or it is something beyond our skills is it a roofer we call or a chimney guy?

I only have one not so great picture of the chimney outside. Thanks for any help you can offer.

 

[begreen]

Inspect the storm collar (take a picture while up there). It could be a poor caulking job on the collar or it may be that the strong winds blew some water under the stove collar. If the latter case, it shouldn't be a frequent occurence.

 

[vatmark]

Inspect the storm collar (take a picture while up there). It could be a poor caulking job on the collar or it may be that the strong winds blew some water under the stove collar. If the latter case, it shouldn't be a frequent occurence.

Thank you. If there is missing caulk what is the product called that we would use to seal it? High heat silicone?

 

[begreen]

A good quality, UV resistant silicone is fine as long as it's not an acetic acid version. I have used GE Silicone II, but there are others.

 

[Winterpeger]

We had the same experience this past Monday night. Rain like I had never seen before, we had 4.5 inches of rain. Our chimney goes through the cathedral ceiling edge so outside it is close to the valley much like your picture. I had a slow drip coming from the square trim collar inside. This was the first time experiencing this in 14 years. I’m assuming in my case the volume of water compounded by the wind action forced a small amount of water up the storm collar beneath the deflector.

 

[vatmark]

We had the same experience this past Monday night. Rain like I had never seen before, we had 4.5 inches of rain. Our chimney goes through the cathedral ceiling edge so outside it is close to the valley much like your picture. I had a slow drip coming from the square trim collar inside. This was the first time experiencing this in 14 years. I’m assuming in my case the volume of water compounded by the wind action forced a small amount of water up the storm collar beneath the deflector.

I think that is probably what happened with us. The wind forced some water under something up there. It wasn't a ton of water. We've been here 9 years. We have had some crazy wind and rain before but this was on another level. Thankfully it didn't last long. It was more like when we had hurricane Helene come through. There's a chance it may never happen again but we are going to check things out just to be sure.