International Association of Certified Home Inspectors
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| Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections. |
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#1
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This is not from an inspection but from a friends home. He's got what looks to be oxidation on his ductwork. Can anyone tell me what might be causing it? His HVAC guy didn't know either. From looking at it, it almost LOOKS like it is galvanized. Could it be?
Thanks Mark Mark Nahrgang www.DaytonSpringfieldHomeInspector.com www.HeyMark.info Home Inspections for Springfield, Dayton, and surrounding OH areas. Last edited by mnahrgang; 11/27/07 at 4:05 PM.. |
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#2
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Freedom Express Inspections LLC CMOR Thermography Certified Level III #8486 freedomexpressinspections.com www.oklahomathermalinfraredimaging.com freedomexpress495@att.net NACHI Member Okla. State DEQ Environmental Phase One Certified Master HVAC Mechanic (Retired) Certified Universal Freon by 40CFR 82 Sub-part F State License # 130 Serving the States of Okla, Texas, Kansas, Missouri , Arkansas and New Mexico with Commercial Inspections,Thermal Imaging |
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#3
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Yes they are bare. The gray ashy color you see is what I am referring to. I don't know if it's galvinization, or if it's oxidation. I can't say that I squeezed them, but I did touch them, and they seemed firm. Also, notice in the pictures the support brackets. They've got the same "coating".
Mark Nahrgang www.DaytonSpringfieldHomeInspector.com www.HeyMark.info Home Inspections for Springfield, Dayton, and surrounding OH areas. |
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#4
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Quote:
Freedom Express Inspections LLC CMOR Thermography Certified Level III #8486 freedomexpressinspections.com www.oklahomathermalinfraredimaging.com freedomexpress495@att.net NACHI Member Okla. State DEQ Environmental Phase One Certified Master HVAC Mechanic (Retired) Certified Universal Freon by 40CFR 82 Sub-part F State License # 130 Serving the States of Okla, Texas, Kansas, Missouri , Arkansas and New Mexico with Commercial Inspections,Thermal Imaging |
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#5
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Im with Charley, Very high moisture area where ducts are run,Matt
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#6
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This was in a basement. I wasn't doing an inspection, but it didn't appear wet, and I didn't notice any signs of moisture intrusion. I'll have him check his humidity. Thanks guys! Learn something every day
Mark Nahrgang www.DaytonSpringfieldHomeInspector.com www.HeyMark.info Home Inspections for Springfield, Dayton, and surrounding OH areas. |
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#7
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Quote:
Freedom Express Inspections LLC CMOR Thermography Certified Level III #8486 freedomexpressinspections.com www.oklahomathermalinfraredimaging.com freedomexpress495@att.net NACHI Member Okla. State DEQ Environmental Phase One Certified Master HVAC Mechanic (Retired) Certified Universal Freon by 40CFR 82 Sub-part F State License # 130 Serving the States of Okla, Texas, Kansas, Missouri , Arkansas and New Mexico with Commercial Inspections,Thermal Imaging |
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#8
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I didn't notice. I'll be sure to ask.
Mark Nahrgang www.DaytonSpringfieldHomeInspector.com www.HeyMark.info Home Inspections for Springfield, Dayton, and surrounding OH areas. |
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#9
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Please Note:
Brian A. MacNeish is a non-member guest and is in no way affiliated with InterNACHI or its members.
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#10
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Quote:
Freedom Express Inspections LLC CMOR Thermography Certified Level III #8486 freedomexpressinspections.com www.oklahomathermalinfraredimaging.com freedomexpress495@att.net NACHI Member Okla. State DEQ Environmental Phase One Certified Master HVAC Mechanic (Retired) Certified Universal Freon by 40CFR 82 Sub-part F State License # 130 Serving the States of Okla, Texas, Kansas, Missouri , Arkansas and New Mexico with Commercial Inspections,Thermal Imaging |
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#11
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Please Note:
sparksnmore is a non-member guest and is in no way affiliated with InterNACHI or its members.
I've seen basement ducts sweat like those obviously have been doing when a basement window was left open during the cooling season.
(Naturally they wont sweat during the heating season.) |
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