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Mounting Block for Metal Siding

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Wardster

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Mar 28, 2008
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372
Location
Kingston, Ohio
Wondering if anyone knows where I can get a mounting block that will fit flush against the ribbed metal siding, so I can properly mount the outside cover for my bathroom exhaust fan. I checked the accessory catalog from the manufacturer and I am not finding anything. If nothing exists, then I am wondering how you dealt with wall penetrations through the ribbed metal siding. Pictures would be great.:thumbup:

Thanks in advance - Tim
 
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RonRock

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Iowa, USA
I did not look at the thread. I have read it previously, and do not recall if it was mentioned. But I'll suggest that you use treated wood to build the spacer.
 
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cyamaha2007

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Apr 20, 2009
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St.Charles MO
even tho treated seems like a good idea ive seen it eat a hole in the panel. Id rather replace a block than replace the panel.
 
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RonRock

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Good point cyamaha2007, I did not think about the current type of treated lumber.


Scratch my previous post.

It's hell getting old.
 
Last edited:
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texmln

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May 25, 2009
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48
Location
Flower Mound, TX
If you can run some standard metal or pvc pipe for the exhaust tube then you can use a flexible roof pipe flashing that will mold to the ribbing and can be cut to fit the tube. Master Flash makes one but both Lowes and HD sell similar items. I used one for the exhaust vent out the side of my metal building as well as a plumbing vent out the side.
 
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Charles (in GA)

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Jan 11, 2006
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50 mi south of Atlanta
RonRock said:
I did not look at the thread. I have read it previously, and do not recall if it was mentioned. But I'll suggest that you use treated wood to build the spacer.
Click to expand...


cyamaha2007 said:
even tho treated seems like a good idea ive seen it eat a hole in the panel. Id rather replace a block than replace the panel.
Click to expand...

I did use treated lumber for the frame in the chimney pics linked to above. However, I primed them with Kilz and painted them with Rustoleoum prior to installing them, and when they were installed they have a layer of mastic tape between them and the metal, the holes were predrilled to preventing splitting, and the edges are sealed with GE Silicone II. The long screws I used to hold it all together were all coated.

Hopefully it will last longer than myself.

Charles
 
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