Securing Vent Stacks

Started by Redoverfarm, February 25, 2010, 08:17:25 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Redoverfarm

Thought I would mention this because I had a failure in that regard.  Apparently I had either failed to secure the vent stack to rafter member or the attachment that I made had failed in that the slidding snow off the metal roof pushed on the vent stack.  I had cut the stack to 18" because of the anticipated snowfall we sometimes get (this year for sure).  So I figured that others faced with the same situation (snow region) might benefit.  The picture and some discussion is contained in http://countryplans.com/smf/index.php?topic=3613.msg110279#msg110279 which apparently slid in under the radar of other post.  


MountainDon


For the education of all. When wanting to direct a link to a particular post in a topic here's how to get a link that will cause the message you want to direct us to.  John's link points to the first page of his 35 page topic.

Each and every post has a header with the name of the topic, the reply# and the date and time of that particular message. Click on the title of the post. If you watch your browser address bar when you do that you will see the url change. The url now has directions to that particular message in that topic.

Copy and use that url in your new message. When folks click on it they will be directed directly to the message you want to refer them to.

Here's the link John posted...
http://countryplans.com/smf/index.php?topic=3613.0

Here's the link to the message her is referring to...
http://countryplans.com/smf/index.php?topic=3613.msg110279#msg110279

see the difference?

Just because something has been done and has not failed, doesn't mean it is good design.


Redoverfarm

Quote from: MountainDon on February 25, 2010, 10:53:36 AM

For the education of all. When wanting to direct a link to a particular post in a topic here's how to get a link that will cause the message you want to direct us to.  John's link points to the first page of his 35 page topic.

Each and every post has a header with the name of the topic, the reply# and the date and time of that particular message. Click on the title of the post. If you watch your browser address bar when you do that you will see the url change. The url now has directions to that particular message in that topic.

Copy and use that url in your new message. When folks click on it they will be directed directly to the message you want to refer them to.

Here's the link John posted...
http://countryplans.com/smf/index.php?topic=3613.0

Here's the link to the message her is referring to...
http://countryplans.com/smf/index.php?topic=3613.msg110279#msg110279

see the difference?



I repaired the original link Don.  and what are you referring to  ;)

ScottA

When I was working in Colorado they made us stub the vent out the roof with cast iron pipe. In the attic we had to put a well braced 2x4 with a hole drilled in it about 18" below the roof penetration for the pipe to pass through as an anchor to keep from happening what happened to you.

Redoverfarm

Scott if I recall I ran it along the rafter (about 4')from the eve area up to the ridge and then put a 45 deg fitting to make it sit verticle to the roof.  It did not come straight up from a partition.  There really wasn't any good thing to brace to but I thought I had used the galv strap to the rafter adjacent.  The boot still looks as if it is sealed around the pipe.  Might have to try to remove the boot, stap to the roof under the boot and replace the boot.  I guess I could always send smoke signals out the pipe from down below to make sure it hasn't seperated.  ??? 


rwanders

I've found it helpful to bring any roof penetrations like that as close to the peak of the roof as possible. Splitters seem to offer small protection from sliding snow.
Rwanders lived in Southcentral Alaska since 1967
Now lives in St Augustine, Florida

davidj

Quote from: rwanders on February 25, 2010, 02:10:57 PM
I've found it helpful to bring any roof penetrations like that as close to the peak of the roof as possible. Splitters seem to offer small protection from sliding snow.
I ran mine in the cathedral ceiling until just below the ridge, then brought them out so they were just below the cap of the metal roof.  They survived one big storm, although they did cause a bunch of snow to sit on that section of the ridge for a few days.