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Exterior Inspections Contains discussions about the exterior portion of a home inspection. This includes roofs, gutters, downspouts, decks, patios, windows, etc.

 
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Old 6/11/09, 4:14 PM
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Richard W. Washington Richard W. Washington is offline
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Default gal alum

What kind of roof is a gal alum? Is that a type of metal roof or does this stand for galvanized aluminum? The client called me saying there was a label on the material for this 1960's home that said cal alum. any insight into what this is?

Sorry no pic's.



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Old 6/11/09, 8:23 PM
Larry D. Kage Larry D. Kage is offline
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Default Re: gal alum

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Originally Posted by rwashington View Post
What kind of roof is a gal alum? Is that a type of metal roof or does this stand for galvanized aluminum? The client called me saying there was a label on the material for this 1960's home that said cal alum. any insight into what this is?

Sounds like this coating:

http://doitbest.com/Roof+coatings+an...sku-105066.dib



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  #3  
Old 6/11/09, 9:41 PM
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Kenton H. Shepard, CMI Kenton H. Shepard, CMI is offline
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Default Re: gal alum

Quote:
Originally Posted by rwashington View Post
What kind of roof is a gal alum? Is that a type of metal roof or does this stand for galvanized aluminum? The client called me saying there was a label on the material for this 1960's home that said cal alum. any insight into what this is?

Sorry no pic's.
The term is "Galvalume". It's a brand name for a steel-core roofing coated with an alloy of galvanized steel and aluminum. Invented in the early 1970's, it has become an industry term like "Kleenex" or "Masonite".




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Last edited by kshepard; 6/12/09 at 10:56 AM..
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  #4  
Old 6/12/09, 9:46 AM
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Richard W. Washington Richard W. Washington is offline
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Default Re: gal alum

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Originally Posted by kshepard View Post
The term is "Galvalume". It's a brand name for a steel-core roofing coated with an alloy of galvanized steel and aluminum. Invented in the early 1970's it has become an industry term like "Kleenex or "masonite".
What is the quality and estimated lifespan on this stuff?



Richard W. Washington, owner
RW Home Inspections, Inc.
www.RWHOMEINSPECTIONS.com
Texas Real Estate Commission (TREC)
Professional Inspector License #7238
Texas Professional Real Estate Inspectors Member (TPREIA)-Greater Houston Chapter
InterNACHI member since 2004
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  #5  
Old 6/12/09, 10:55 AM
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Default Re: gal alum

The reason it's done so well is that it's pretty durable. Don't know the lifespan. I guess it depends on the particular product, how it was stored, installed, maintained, etc.




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  #6  
Old 6/12/09, 6:30 PM
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Default Re: gal alum

You can check online for current products and life expectancy of the finish at www.muellerinc.com or at www.metalmarts.com.
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