Super heavy snow?

[Dave Liquorice]

Flashing doesn't go that deep, an inch at the very most, so about 25%. B-)

[jgharston]

Akh! That's annoying. I'm a former board member and reserve performance auditor. I'm going to have some questions to ask at the next meeting.

JGH

[harry]

The carport did not fail. The fixings did not fail. It fell down because there was insufficient weight of masonry above it to form a counterweight. It was installed in an unsuitable location.

I can see why it might be attractive not to have supports as you can hit them in the dark whilst parking.

[harry]

So they don't deteriorate with the sun.

[harry]

You are a half wit. Traditional houses are load bearing by reason of the purlins.

Only in houses with trussed roofs are they not. Even then the gable is supposed to be tied to the roof structure.

[harry]

Masonry walls stand by gravity so it makes little difference. In any event the raking/cut would only be around 30mm.

[Chris J Dixon]

Plenty of companies eager to sell them, just Google cantilever carport:

We use hilti fixings for supporting our cantilever carport beams. These not only support the carport but are also capable of coping with high winds and heavy snowfalls.

The canopy has been tested at the University of Lancashire in Preston, to a snow loading of 1690kg. And to a wind load of 146mph, far in excess of whatever is likely to occur.

Chris

[John Rumm]

Actually it makes quite a significant difference. Pulling a brick out with mortar on all sides is far harder than pulling out one that has a section of mortar above it removed and replaced with something that is ductile and self lubricating.

[John Rumm]

Hello pot, meet kettle.

Which bit of the phrase "trussed rafters" above did you not understand?

Also note that traditional purlin layouts leave a diamond section at the top of a gable unloaded.

It may have a few straps, but it does not add significant structural strength. The tops of gable walls can be quite weak when subjected to lateral loads.

[Owain]

And another one, in Corby, Northants.

[John Williamson]

That sort of design always strikes me as weak. For not much extra cost, you could put in some uprights tied into the wall top and bottom, and use these to take the torque, reducing the lateral loading on the wall at the top.

Of course, if the wall were reinforced concrete, you'd just need to tie the fixings into the reinforcement.

[Andy Burns]

that much snow on either of them (judging by nearby roofs) wonder if the cowboys will stop fitting them to single storey gable ends?

[Tim+]

I had a shufi at some fitting insturctions on line which seem to call for either 900mm of brickwork above the port or the addition of vertical braces (as visible in that Google maps link). It looks like manufactures should be seriously rethinking their fitting advice.

I wonder who'll pay up? Home-owners insurance, the car port fitters or the manufacturers?

Tim

[Mike Tomlinson]

En el artículo , Owain escribió:

to report it real soon now.

[harry]

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The bricks have not pulled out. The whole wall has tipped over. It was not heavy enough to counter the weight of snow. If it had been a two storey building there would have been no problem.

[ARW]

Don't forget to report back.

[John Rumm]

How can you tell, given the state of what was left?

As it would if you pull a course of bricks out as well.

[Andy Burns]

Yes, two dishes and a carport ... ears must be burning ...

[dennis]

Why do you think I specifically said trussed rafters you idiot.

[fred]

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Looking at the one in Corby before the collapse, the end of the canopy clos= est to the road has virtually no bricks above the support.