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  1. #1
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    Default Study of Life expectancy of Home componentS

    For your info

    Attached Files Attached Files
    NHIE Practice Exam

  2. #2
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    Mar 2007
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    Columbus GA
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    Default Re: Study of Life expectancy of Home componentS

    I'm confused, how can a heat pump be expected to last longer that an AC unit.

    From page 4

    "Heating, Ventilation, and Air Conditioning (HVAC)Heating, ventilation, and air conditioning systems require proper and regular maintenance in
    order to work efficiently, but even in the best case scenarios most components of such systems only
    last 15 to 25 years. Furnaces on average last 15-20 years, heat pumps 16 years, and air conditioning units 10-15 years. Tankless water heaters last more than 20 years, while an electric or gas water
    heater has a life expectancy of about 10 years. Thermostats usually are replaced before the end of
    their 35-year lifespan due to technological improvements."

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  3. #3
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    Default Re: Study of Life expectancy of Home componentS

    "DoorsExterior fiberglass, steel and wood doors will last as long as the house exists, while vinyl
    and screen doors have a life expectancy of 20 and 40 years, respectively. Closet doors are expected
    to last a lifetime, and French doors have an average life of 30 to 50 years."

    40 years for a screen door .... really.
    Where did they get this from
    In my experience a screen door last.... 30 days or less per tenant.

    - - - Updated - - -

    Vinyl floors last up to 50 years

    Last edited by Rick Cantrell; 11-09-2013 at 04:05 PM.
    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  4. #4
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    Mar 2007
    Location
    Columbus GA
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    Default Re: Study of Life expectancy of Home componentS

    22. SIDING & ACCESSORIES
    Material
    Brick Lifetime
    Engineered Wood Lifetime
    Fiber Cement Lifetime
    Manufactured Stone Lifetime
    Stone Lifetime
    Stucco 50-100
    Vinyl Lifetime*

    * Unless there are windows on the house or on nearby houses.
    Or you own a grass trimmer
    Or if .......


    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  5. #5
    Join Date
    Jul 2008
    Location
    Chicago
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    Default Re: Study of Life expectancy of Home componentS

    Windows: Aluminum/Aluminus Clad 15-20
    This is sad but true.

    In jolly old England, studies say aluminum clad wood windows last 40 yrs.

    Mike Lamb
    Inspection Connection, Inc.
    http://www.inspection2020.com/

  6. #6
    Join Date
    Mar 2007
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    Anacortes, Washington
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    Default Re: Study of Life expectancy of Home componentS

    So its six years old now. Any idea when they will update it???

    //Rick

    Rick Bunzel
    WWW.PacCrestInspections.com
    360-588-6956

  7. #7
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Rick Bunzel View Post
    So its six years old now. Any idea when they will update it???

    //Rick
    Obviously, the life expectancy of the study is longer than 6 years.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  8. #8
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    Mar 2007
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Mike Lamb View Post
    Windows: Aluminum/Aluminus Clad 15-20
    This is sad but true.

    In jolly old England, studies say aluminum clad wood windows last 40 yrs.
    Aluminum windows only last 15-20 years per them?

    News to me ... my house is 1978 vintage with aluminum windows - that puts the windows at 35 years this year, and the only reason to replace them would be to replace them with impact windows or double-glazed insulated windows ... and replacing the existing aluminum windows for either of those reasons does not make the existing aluminum windows 'bad' or 'past their life expectancy', replacing the existing aluminum windows for those reasons just means that one is updating to a higher product standard (impact or insulated) versus the old single glazed windows.

    That study seems biased toward some unstated goal for whatever reasons the authors of it had.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  9. #9
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    Jul 2008
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    Chicago
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Jerry Peck View Post
    Aluminum windows only last 15-20 years per them?

    News to me ... my house is 1978 vintage with aluminum windows - that puts the windows at 35 years this year, and the only reason to replace them would be to replace them with impact windows or double-glazed insulated windows ... and replacing the existing aluminum windows for either of those reasons does not make the existing aluminum windows 'bad' or 'past their life expectancy', replacing the existing aluminum windows for those reasons just means that one is updating to a higher product standard (impact or insulated) versus the old single glazed windows.

    That study seems biased toward some unstated goal for whatever reasons the authors of it had.
    I don't know what's up with the UK. Are your windows all AL?

    Aluminum clad wood around here doesn't last anymore.

    Mike Lamb
    Inspection Connection, Inc.
    http://www.inspection2020.com/

  10. #10
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Mike Lamb View Post
    Are your windows all AL?
    Yes. Architectural bronze anodized aluminum. The anodized bronze finish has faded to a dull bronze, but that is all.

    Aluminum clad wood around here doesn't last anymore.
    The aluminum corrodes. wears out, or what?

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  11. #11
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Jerry Peck View Post
    The aluminum corrodes. wears out, or what?
    The AL allows water behind it and it doesn't drain. It accelerates rot. That and inferior weather treatment of the timber. Marvin had a lawsuit against them for this a while ago.

    It is chronic with 10+ yr houses. I have ID'd Jeld-Wen Norco's as one of the culprits but most the time there is no ID.

    These pics are from 2 different houses.

    It would be prudent for HI's to inspect these newer AL clad wood windows carefully. Look for black and note it even though you don't find actual rot. It's not unusual for window replacement to run $1000 plus per window.

    158 window.JPG 176rot.jpg198ROT.jpg

    Mike Lamb
    Inspection Connection, Inc.
    http://www.inspection2020.com/

  12. #12
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Mike Lamb View Post
    The AL allows water behind it and it doesn't drain. It accelerates rot. That and inferior weather treatment of the timber. Marvin had a lawsuit against them for this a while ago.
    All begins and ends with proper design ... or lack of proper design ...

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  13. #13
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    Mar 2009
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    Denver
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    Default Re: Study of Life expectancy of Home componentS

    Any idea when they will update it???
    This more comprehensive life expectancy chart for homes is updated regularly

    Lisa Endza
    Director of Communication
    InterNACHI

  14. #14
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    Default Re: Study of Life expectancy of Home componentS

    Hi Liza

    Got to hand it to InterNachi they sure do endeavour to keep abreast of all the latest data and stats on behalf of their members, not to mention the other great educational materials. I have to admit I have referred to it on many occasions myself. Recently I was reading the info on Visual Inspection of Concrete.

    Thanks for the link on life expectancies.

    Btw when is Nick coming up to Ontario. I would like to meet with him and have a drink or two?


  15. #15
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    Default Re: Study of Life expectancy of Home componentS

    Quote Originally Posted by Lisa Endza View Post
    This more comprehensive life expectancy chart for homes is updated regularly

    Is there a link to what was used as the basis in determining the numbers posted. Basically the resource data and source used. I id not see any references listed just "...these life expectancies have been determined through research and testing....". Not nitpicking, just interested in the credited sources to review.


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