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  #14566  
Old 2/15/19, 7:36 PM
Howard O. Crick Howard O. Crick is offline
Certified Professional Inspector (CPI)
 
Join Date: Oct 2015
Location: Calgary Canada
Posts: 64
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Inspection & Writing Assignment:

This roofs valley flashing was leaking due to rusted out metal valley. Roofs and its conponents are the first line of defence against the weather and should be checked for issues every 1-2 years to prevent leaks like this into the structure

How to Inspect for Moisture Intrusion Course
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  #14567  
Old 2/15/19, 8:53 PM
David Ball David Ball is online now
InterNACHI Applicant
 
Join Date: Feb 2019
Posts: 6
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Inspection & Writing Assignment:

Ceiling patch: Contractor repair of water damage caused by a falling tree branch that penetrated the exterior siding. There does not appear to be any signs of current water intrusion. Homeowner will continue to monitor to protect home from any future water damage.

How to Inspect for Moisture Intrusion Course
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  #14568  
Old 2/15/19, 8:57 PM
Howard O. Crick Howard O. Crick is offline
Certified Professional Inspector (CPI)
 
Join Date: Oct 2015
Location: Calgary Canada
Posts: 64
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Research & Writing Assignment:

Moisture intrusion into roofs can seriously affect the structure of a home. Metal truss connections and the truss itsekf can be damaged and fail. Mold can be a big issue if leaking is nit addressed and caught in time. Roofs should be monitored regularly and not taken for granted that everything is sealed and leak free

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  #14569  
Old 2/15/19, 9:49 PM
Luis Lugo Luis Lugo is offline
InterNACHI Applicant
 
Join Date: Aug 2018
Posts: 34
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Inspection & Writing Assignment:

The attached photo shows a window located in the master bedroom; view from interior space. The gypsum board at sill and jamb of window opening contains mildew, indicating moisture intrusion. The exterior window perimeter requires re-caulking, existing caulking / sealant is old and deteriorated.

How to Inspect for Moisture Intrusion Course
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  #14570  
Old 2/15/19, 10:10 PM
David Ball David Ball is online now
InterNACHI Applicant
 
Join Date: Feb 2019
Posts: 6
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Research & Writing Assignment:

Moisture Intrusion in the Pacific Northwest:
In my opinion the bulk of the problems from moisture intrusion come from these 3 sources. A) Wind driven rain through openings in the exterior protective barrier, B)Moisture wicking from ground by either osmosis or capillary action, C) Leaks around plumbing fixtures and pipes. Most potential moisture problems could avoided by proper installation, barriers, flashing, and routine maintenance. Annual inspections during the rainy season may be the optimal time to do the inspections as the conditions would be most likely manifest moisture intrusion.

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  #14571  
Old 2/15/19, 10:40 PM
Luis Lugo Luis Lugo is offline
InterNACHI Applicant
 
Join Date: Aug 2018
Posts: 34
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Research & Writing Assignment:

"Tyvek" Housewrap is the most common exterior sheathing used in the U.S.. Housewrap is typically used under cladding and siding in humid / wet climates to protect the exterior building envelope from water penetration; however, it is not considered a vapor retarder. Housewrap stops water penetration, but allows water vapor to pass through. Inspectors should be familiar with manufacturers proper installation requirements.

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  #14572  
Old 2/15/19, 11:39 PM
Robert Hunter Robert Hunter is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Jan 2019
Posts: 24
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Inspection & Writing Assignment:

This picture shows that the proper clearance is not present and has damaged the siding. Because the siding is damaged, its given a way for moisture to follow up to the window trim which is also wood. Further evaluation and correction is required by a professional.

How to Inspect for Moisture Intrusion Course
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  #14573  
Old 2/15/19, 11:46 PM
Robert Hunter Robert Hunter is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Jan 2019
Posts: 24
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Research & Writing Assignment:

Proper clearance of 8 inches is required for cladding and other wall coverings. With this clearance the cladding or siding will have not be given the chance to absorb rain run off or improper drainage. Proper flashing should also be installed to protect from water entry.

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  #14574  
Old 2/16/19, 2:04 AM
Matthew Borden Matthew Borden is offline
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Join Date: Jul 2018
Posts: 21
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Inspection & Writing Assignment:

There appears to be active moisture and mold on the drywall at the base of the wall in the picture. Testing the presence of mold is beyond the scope of a home inspector and should be further evaluated and tested by a professional mold inspector.

How to Inspect for Moisture Intrusion Course
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  #14575  
Old 2/16/19, 2:17 AM
Matthew Borden Matthew Borden is offline
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Join Date: Jul 2018
Posts: 21
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Research & Writing Assignment:

Water is the greatest destroyer of a home. Water, in all its forms, is an ever-present fact of life, especially for homeowners. Knowing and understanding how a house sheds water is very important for home inspectors and helps find water intrusion points.

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