Michael2311
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Could someone please tell me what the "deadly ceiling" refers to in wreck diving.
wreck diving
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Iguana Don
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Not sure about wrecks, but in caves it is the overhead environment. Any place you can't make a direct ascent to the surface.
ID
ID
TexasMike
Contributor
Tekdiver would be a good person to ask this.....Yo, Marc! Got an answer for us?
Tekdiver
Guest
I've heard it expressed two ways. One is just as ID describes. Any overhead environment can be deadly whether in a wreck or 3000' back in a cave. The other reference to "deadly ceiling" or "glass ceiling" is the decompression ceiling or the shallowest point to which you can ascend to meet a decompression obligation.
Lost Yooper
Guest
Most people I have heard who use the "deadly ceiling" phrase are those who aren't properly trained or experienced in overhead environments. Danger is quite relative in this sport.
Mike
Mike
large_diver
Contributor
My $0.02 --
Any time you can't go directly to the surface, whether due to physical barriers or decompression obligations.
Any time you can't go directly to the surface, whether due to physical barriers or decompression obligations.
While I haven't heard the term "deadly ceiling" used with wreck diving, *any* ceiling could be accurately described as "deadly" under the right circumstances. In wrecks, you can get lost - this can happen within a few feet of an exit if you have a total silt-out, and has claimed several divers over the years. You can get stuck. This too can happen within a few feet of - or even at - the exit. A specific "deadly ceiling" may be referring to the case where your bubbles cause a silt-out behind you as you go, so when you turn around you are greeted with a very unpleasant and potentially fatal surprize.
Bottom line - overhead environments are *not* included in open water training at any level. Open water instructors have died a few feet inside caves because they lacked overhead environment training. If you are contemplating going inside wrecks or caves or doing extended range (anything other than open water less than 130' within "no decompression" limits) then take the course for it.
Rick
Bottom line - overhead environments are *not* included in open water training at any level. Open water instructors have died a few feet inside caves because they lacked overhead environment training. If you are contemplating going inside wrecks or caves or doing extended range (anything other than open water less than 130' within "no decompression" limits) then take the course for it.
Rick
Tekdiver
Guest
Excellent advice Rick! I hope everyone is listening.
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