Roof Overhangs, Are They Important?

Reblogger Rich Cederberg
Real Estate Agent with eXp Realty

Here's an excellent post by Albuquerque home inspector Fred Herndon. This is certainly a home feature that I look for on older homes in Los Ranchos and elsewhere. 

Original content by Fred Hernden, CMI InterNACHI 10041206

I did an Inspection the other day in the Los Ranchos, it's an extension of the Albuquerque area. This home was built in 2000 and is part of a nice little subdivision. This subdivision has similar type homes throughout the subdivision. The first thing I noticed about this house was it had little to none roof overhang. In fact, it was an inch and a half overhang... that's not enough!

Every house should have a roof overhang! Many builders do not pay enough attention to the overhangs. Roof overhangs have several important functions. They can protect exterior
doors, windows, and siding from rain.

They can shade windows when solar heat gain is undesirable, and they can help keep basements and crawl spaces dry. A house with improper overhangs can overheat in the summer and can suffer from water entry problems at windows and doors, and can have premature siding rot or damage. Perhaps the most important function of wide roof overhangs is to help keep water off siding, windows, and doors.

 

While it’s impossible to stop all wind-driven rain from reaching your walls, wide roof overhangs make a big difference... especially if there is just one story under the overhang. Walls with stingy roof overhangs get regularly soaked. These repeated wetting episodes cause a variety of problems. A house without a roof overhang leaves the wall covering unprotected and vulnerable. 

Another function of wide eave overhangs is to ensure that roof water doesn’t drip near the foundation and erode the soil away. Keeping the eaves-drip away from the house helps keep your crawl space or basement dry, it also limits the damage caused by splash-back. Splash-back is a common cause of siding rot and stucco damage, as the water beats on the soil or concrete sidewalk and splashes back onto the exterior walls.

 

In this house's case, the lack of proper overhang has ruined the stucco wall covering. It is cracked badly and is disintegrating to the touch. A big help here would have been installing gutters.

Gutters would have protected the facia boards because the gutter slips up under the drip eave metal, so water would run directly into the gutter where it would be channeled away from the house structure and foundation.

 

 

 

Without them, the runoff merely runs down the face of the facia boards and down the walls. It's too late to save this wall covering, but it could be prevented from happening again.

The disturbing thing to me is that the whole subdivision was built this way!

 

Give me a good 16" to 24" overhang any day! Minimum overhang size should be 12", and is a best practice in residential construction. 


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  Fred Hernden 

 

 Superior Home Inspections

 

  813-526-0900

 

     *****************************************************************************

 Albuquerque, Rio Rancho New Mexico and surrounding areas...

 

“My mission is to provide superior quality home inspections to my clients to ensure peace of mind so they can confidently make the largest investment they may ever make!"

                   

Please visit my website at: www.SuperiorHomeInsp.com for details!

                 

 

                                     

 

 

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Rainer
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Dan Hopper
Keller Williams Realty Downtown LLC - Denver, CO
Denver Realtor / Author / Advocate/Short Sale

Wow, that is really not an overhang on that 2000 home, period!  Thanks for the information on the importance of this shared by FRED HERNDEN  , Rich!

Nov 28, 2015 12:54 AM #1
Rainmaker
573,150
Fred Hernden, CMI
Superior Home Inspections - Greater Albuquerque Area - Albuquerque, NM
Albuquerque area Master Inspector

Thank you for the re-blog Rich!!

Nov 28, 2015 02:25 AM #2
Rainmaker
2,676,856
Debbie Gartner
The Flooring Girl - White Plains, NY
The Flooring Girl & Blog Stylist -Dynamo Marketers

Excellent choice for a reblog.  It's rare to see something like that here...in fact, I don't know that I ever have.  I can't imagine a house surviving a winter w/ that.

 

Nov 28, 2015 02:32 AM #3
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