hey guys,i got a problem with my roof on my cabin at the lake.It was built in the 70’s and the style of roof is a flat shed style with a 1/2 slope,but the guy who built it sandwiched the underside to the top side with no room for air flow.so,without any costly demos and repairs is their any way to get air flow in there and stop the ice damming and rotting of joists?keep in mind that the insulation is tight top and bottom and the soffits are closed in with ply.so i dont think roof vents would work or any of the conventional methods without tearing the top off and peaking the roof.
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Greetings manimal,
This post, in response to your question, will bump the thread through the 'recent discussion' listing again.
Perhaps it will catch someones attention that can help you with advice.
Cheers
I am becoming increasingly worried that there isn't enough anxiety in my life
thanks razzman,how do you put it through recent discussions again?so that i can do it later myself if need be.
Just the new posting to this already established thread will reactivate the thread from it's placement in it's designated folder of 'construction techniques' into the 'recent discussion' column again.
Often times just posting the word 'bump' has been used but many aren't aware what the word 'bump' is being used for.
If not a time sensitive issue usually it is best to wait a day or two before bumping in order to give the members ample time to view the thread.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming
WOW!!! What a Ride!
A straightforward, though costly, approach would be to build a ventilated "cold roof" on top of your existing roof.
-Jazzdogg-
Whether you think you can, or you think you can't, you're right.
thanks jazzdogg,what do you mean about a cold roof?just build a peaked roof on top and thats it?it would seem to me that if i did that the exsisting roof would still have moisture problems due to no air flow in old roof wich is still warm underneath and cold on top side even with a new roof on top.i guess if i tore off the top part of my old roof and then built from their that would work best but that would the last option for me to do if i could figure out a cheaper way.
thanx
That subject has been addressed here on Breaktime a number of different times in the past.
In the event you fail to receive the information you desire, you might find it in the archives.
If you scroll down in the lower left corner of your screen there is a search function that will take you to previous threads dealing with whatever you type in the search bar.
If you type in 'cold roof' or other keywords of the subject matter you'll get a supply of data from those old threads.
Cheers
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming
WOW!!! What a Ride!
just build a peaked roof on top and thats it?
You said the existing roof was a flat (single plane) shed roof. If that's the case, you could place 2x as sleepers, running up the slope, and deck over that, creating a vented roof that's over the existing insulated roof.
it would seem to me that if i did that the exsisting roof would still have moisture problems due to no air flow in old roof wich is still warm underneath and cold on top
Now, that's the question that fuels the vented versus unvented argument. Which then spawns a whole bunch of other arguments (like should the insulation be exposed to circulating air in the roof structure, and what insulation is better or best for the application. Also, both sides can point to examples of ice dams in both kinds of construction, too.
You said that the roof had a 1/2 pitch. Do you mean that it is sloped 1/2" in 12" of run, or that it is pitched 6" in 12" of run?
I'm suspecting that there's other roof damage that is letting water in to the roof structure--changing the insulation might not correct a roof problem. Particularly if this is a shallow-pitched roof. It would only take one old, or badly patched, roof jack to compromise the roof.Occupational hazard of my occupation not being around (sorry Bubba)