Trying to describe building failure in recently build house in
I'm looking for and have not found a brief name for the bit of roof
that is turned in at gable ends.
Anyone have an idea?
Thanks, I've wondered what that was called. But I'm surprised it's called
"Dutch", because it seems to show up on houses that that seem to have more
of a Pacific or loosely Japanese-type influence. The ones I've seen
usually have vents in the gable.
I know that the "gambrel" is associated with Dutch influence (in the
NorthEast), but I never saw the illustrated type on anything that seemed to
be otherwise Dutch-influenced (when I was in the NorthEast). So I Googled
it. This site might be of interest:
Q. - Is this kind of gable BTW as susceptible to wind damage as is a large
I typically model the Dutch Hip as a full hip when doing the overall
structural model (base shear, etc.) Then model the partial gable under the
"components and cladding" parts of ASCE7-02 (IBC2003).
The Dutch hip can funnel some of the wind directly at the partial gable,
whereas a full hip will let the wind pass over the roof.
In any case it all comes down to the connection details and the ability of
the contractor to execute those details.
Bob Morrison, PE, SE
R L Morrison Engineering Co
I hadn't thought of that - sounds logical. Is it somthing, do you know,
that's actually used in the Netherlands? I've never actually been there,
so it'd be interesting to know.
It seems like something that'd be quite practical, tho', in a hot climate,
esp. if the roofing material extended over the gables - that way, the hot
air should rise and exit, without allowing a lot of rain to get in. But it
seems like it'd be impractical in a cold climate.
I wonder whether the cooling-airflow function would be more efficient if
there were vents on all four sides (assuming a square or nearly-square
In addition to tying things in and together well, would it help to cover
the underside of the overhang? ((I've seen both vented and unvented eaves,
tho' the vented are said to cut down on humidity and deter mold.))
The photo referenced by Rico shows what is really called a broken
pediment, especially true of the item photographed as the raked cornice
and bottom cornice would have formed a 'proper' pediment (though not
supported by columns, which is also common).
Pediments can be broken at top (no joining raked cornice) or bottom
(interrupted base cornice). In a broken pediment, the bottom 'returns'
would be known simply as cornices. There may be an actual Latin (if not
Greek) term for these 'leftover' cornices, (like acroterion for the
decorative elements placed on top of the raked cornices at the lower
points and apex) but I don't have my arch. dictionary with me.
Technically, 'gable' refers to the structural infill of the triangle
created under the sloped roofs. Pediment refers specifically to the
cornice/decorative motif, with the tympaneum being the area
encapsulated by the cornices. So depending on how technical you want to
be, you may consider 'bottom cornice'.
though the definitions are more precise in the former, though harder to
visualize without drawings. The former is also UK so there be some
variations with respect to US usage.
TB asked for a brief name for the construction in question. Having to
give a lesson in Latin while explaining the construction at the same
time is a quick way to have people's eyes glaze over.
It's a matter of clarity. While your terminology is no doubt correct,
it's also potentially misleading. A broken pediment to most people,
including most architects, indicates one broken at the top. A bottom
cornice? A cornice is a capping element - if there are no pilasters
under that gable end return...errr...cornice, it's not clear what it's
capping. Since it's undoubtably wood frame construction located in the
US, it makes the most sense to use the term used by carpenters in the
I'll use Gable End Return, because folks will - I hope - understand it.
In addition, the forms, as copies of copies of copies, have so little
resemblence to classical precedent that they are almost new forms.
Marcello, I'm keeping the links. Thank you.
I'm not sure what your target audience is, or if you have a word count
limit (typical in magazines). But if you want to cover all bases you
can always use 'gable end return or base of broken pediment' as your
first cite, and then use 'gable end return' throughout the rest.
Glad to be of help. I saved the links as well; always fun to find good
references on the 'Net'.
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