Where is the non-hip feature?


So these properties with concrete walls that rise past the roofline: where do I read the ACTUAL regulation that defines whether this is a hip or non-hip roof feature?

I know nothing of FL wind mit.

But, I would call that a parapet.


It is a parapet wall you are correct. I don’t know how that can be confused with a hip.


Parapet wall

Parapet wall … I think InterNACHI has a course on roofing that will teach you how to recognize different types of roofs like … Flat, Gable, Hip, etc. I’ve heard its really good for new inspectors.

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I know it is a parapet wall. I did not confuse this for a hip roof. The question is whether it is counted in total roof perimeter for the OIR-B1-1802, and if so, is it non-hip. InterNACHI’s wind mitigation course does not address this particular construction in determining roof geometry. I have been unable to find the FBC regulation with the verbage that describes this consideration.

This is obviousbly a non-hip roof feature and would be counted as such.

The question is whether or not the state of Florida counts parapet gable ends as non-hip features in the roof perimeter or discounts them in the calculation.
parapet gable roof

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IMO it is a cement wall, not a gable end. Not part of the roof structure.
You will not find roof geometry designations for the 1802 form in the INachi course.

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Gable roof.
A gable is the generally triangular portion of a wall between the edges of intersecting roof pitches.
A hip roof has slopes on all (4) four sides.

Parapet Fire/Common Wall.

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Here ya go with bad, confusing information again.
You have no clue what is and what is not a hip designation on the OIR-B1-1802

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That is a good question. Personally, I would agree with marc, and call it hip roof, because there is no gable to catch the uplift. That is the concern, that a gable will have much less wind resistance in a hurricane…

Nowhere do I see that Marc called it a hip roof.

Not sure if this is on a test or quiz showing pictures where you are to point out hip roof features (OP) but there are Hip roof “Features” there technically speaking.

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I bet this will ruffle some feathers! That Parapet roof does not have gable ends. A Gable end has a rake that is exposed to wind uplift in terms of the 1802.

Going by the exact wording on the 1802, since FBC and the State Insurance board don’t want to define it down to a knat’s ass, I’m measuring that Parapet section as a HIP and letting the ‘Smarter’ Insurance guy make the call.

Those small 12"-18" rakes in the first 2 pics count against the hip since they are actual rakes but they won’t exceed 10%.

Headed to lunch… Happy 4th everyone!

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Good job Robert thank you. :cowboy_hat_face:

This is what I was referring to… That it isnt part of the roof structure, therefore, not counting against the hip features.

Ok lets take this discussion even further then. This roof on this report doesn’t have any hip features but is marked hip on this report.

That’s a very professional report for sure! He said in his classes that he provides a lot of info and that’s proof. A bit of professional courtesy to Glenn would be to blur the man’s signature next time as well as his client’s name.

There’s a difference between ‘Hip Credit’ for insurance and a ‘Hip Roof’ in construction styles. It’s marked appropriately and he explains his reasoning about the parapet walls and how he doesn’t count it against the hip credit. That leaves it open to interpretation by the insurance agent who’s not going to contest the reports findings.

Other than the fact that I would count the entire roof perimeter of the parapet wall myself in my total calculations, I wouldn’t count it against the hip credit either.

So to summarize: parapet gables are not counted as “non-hip” features though it is the inspector’s discretion whether to count them in the total roof perimeter measurement.

My simple answer to your statement- YES.

Not trying to twist words here but I would say it’s the inspector’s ‘interpretation’ to count the parapet wall as a ‘non-hip’ because there’s nothing clearly defining it for the 1802. I’m interpreting it as the insurer to determine where damage would most likely occur. In the case of Glenn’s report above, I’m coming to the same conclusions, just using my numbers differently based on ‘my interpretation’.

In a strict construction sense, a parapet wall is not a hip feature but in terms of the 1802, they want to know what portions of the ‘roof system’ provide ANY uplift. The roof is connected to the wall and provides NO uplift to result in any damage to that portion of the roof. I’m completely open to a change/clarification if the State Insurance Board or Insurance Companies want to define this… until then they’ve left if open to interpretation (opinion) and we all know about ‘opinions’

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IF you count them in the total roof perimeter, than that would negate the hip credit, because it would make it more than 10% of the total roof perimeter.