ᐅ Severe weather warning level red for our construction area tomorrow!

Created on: 12 May 2018 21:13
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KingSong
KingSong12 May 2018 21:13
Hello everyone,

A severe weather warning has been issued for our building site tomorrow from 2 p.m. to 5 a.m. the following day. It is a red alert with warnings of heavy rain, hail, and hurricane-force winds.

At the moment, our base slab is prepared for the concrete pour scheduled on Monday.

Current status:

- 18 cm (7 inches) of perimeter insulation installed
- plastic sheeting on top
- spacers and one layer of reinforcement steel

Can I leave everything as it is shown in the picture without worry, or should I secure anything or take other precautions?

Could hail cause serious damage to the plastic sheeting or the perimeter insulation?


Foundation construction site with reinforcement steel mesh, gravel, and adjacent house


Thanks in advance,

greetz Jörg
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toxicmolotof
13 May 2018 00:40
I may not be able to take away your fear, but I would ask you not to exaggerate.

In your area (if it is Germany), there is a preliminary warning for severe local thunderstorms in about 30% of the country. So it could affect you, but it doesn’t have to.

Now, what bothers me is this: where did you get the information about a hurricane? That would be Beaufort 12. There is currently no such report. The highest alerts are for a severe storm (Beaufort 9).

Steel won’t fly away, at least not unless wind gets underneath a structural layer or covering.

Who is the client? Who is the construction manager? Communicate with each other.
KingSong13 May 2018 00:46
Well, I am the client, and the site manager hasn’t seen the current status yet; he was supposed to come on Monday... Anyway, I hope nothing will happen, but I just wanted to know if anything should still be secured there.
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toxicmolotof
13 May 2018 01:05
If concreting is planned for Monday, the site manager will already know the current progress.

I would be concerned about tarpaulin-covered construction fences or packages of styrofoam. Also about protective sheets and similar materials. Or any areas where the wind can get underneath. I think hail won’t cause much damage. It tends to absorb the impact rather than really penetrate.
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Knallkörper
13 May 2018 02:01
I would be more worried that the ramp where the house is supposed to stand might wash away 🙁
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Alex85
13 May 2018 07:15
How would you secure things now? With what materials? All the stores are closed, do you have a 150cm by 100cm (5ft by 3ft) tarp at home? 🙂

The steel is already installed and twisted together. It's unlikely that a mat would be lifted by the wind.
At most, a construction fence might tip over if there is a sign attached or a portable toilet 🙂