Hi all, I recently joined GJ and would like to say that it is a great site. I have a 42 X 26 cement block building that is my Shop. This summer the roof needs to be replaced as the previous owner built his own truss system and the roof has sagged badly over the last 40 years. The roof only has about a 2 -12 pitch and is tar and ballast built up roofing. I live in southern Idaho and we get a lot of snow each year. My plan is to have custom sissor trusses built and contrust a 4 - 12 pitch roof over the top of the existing roof. Then sheath it with 19/32 OSB, and cover with metal roofing. Then replace my overhead doors with insulated door and liftmaster openers. In this building I have a gun shop that I have been working on for the last year. I will get some pic's posted as the work begins.
My Sad Roof
- Thread starter jerryd68
- Start date
e-tek
Well-known member
Good size building - what do you use it for?
HSpencer
ALLIANCE MEMBER
I also have a gun shop in my back shop area. No, no big lathes or milling machines, just a special gun maintenance area and a nice drill press. I work on my own guns through training as an armorer in the Army. I am NOT a gun smith or anything, just take pride in keeping my guns in top shape. I have a schedule for cleaning and maintaining them sort of like some people schedule their car services.
I would enjoy seeing your set up if you want to do a photo. If you store any guns in the shop area, I will of course understand your not wanting to publish a picture.
Best Regards
Herb Spencer
hippie2cams
Well-known member
everyone should have a gun shop in the back or front if your close to the street. maintenance is also good for Guns as well. enjoy
pattenp
Well-known member
IMHO a 4/12 is too low if you have any fair amount of snow load. I'd go 6/12 as a minimum.
borgdog
Well-known member
If it's engineered correctly you can have a flat roof and all the snow you can handle, in a lot of places houses are designed to hold the snow as it is a great insulator, and a lot of snow coming off roofs can cause problems. That being said, my cabin in the mountains that has 4-10 feet of snow sitting on the ground most of the winter has a 12/12 pitch designed to shed the snow, of course I made sure it had somewhere to go that wouldn't cause problems (unlike my neighbors that get their deck railing ripped off every year). It might be difficult to do just a 4/12 over the top of a 2/12 though. I'd probably rip the whole old roof off and then you can do whatever you want.
pattenp
Well-known member
My opinion was based on the OP saying he was going to use scissor truss. Of course a roof can be engineered to hold what ever load is expected.
If it's engineered correctly you can have a flat roof and all the snow you can handle, in a lot of places houses are designed to hold the snow as it is a great insulator, and a lot of snow coming off roofs can cause problems. That being said, my cabin in the mountains that has 4-10 feet of snow sitting on the ground most of the winter has a 12/12 pitch designed to shed the snow, of course I made sure it had somewhere to go that wouldn't cause problems (unlike my neighbors that get their deck railing ripped off every year). It might be difficult to do just a 4/12 over the top of a 2/12 though. I'd probably rip the whole old roof off and then you can do whatever you want.
I have considered removing the old roof, but it probalby doubles the work as I will have to deal with the electrical etc. I have had one truss company look at it and it was there suggestion to build over the existing roof with sissor trusses, and use a 4 / 12 pitch to match my house. I would think if I use metal roofing it should shed the snow load fairly well.
I will get some pic posted, I havent finished the remodel of my gun shop, I used it for years and then last fall I decided to remodel, but my work schedule if fairly demanding and I havent gotten it all back together yet. I also do alot of maintence work on my guns, as well as some custom work. Also quite a bit of reloading.
Well the fun begins on Saturday, I have removed most of everything that was attached to the rafters, Sat will will be removing the old rafters and installing the new. My plan is to replace the roof and begin the transformation of an old ugly cinderblock building into my new improved shop, my Man Cave.</P>
theoldwizard1
Well-known member
Concur. Even more would be better.
With enough pitch and a steel roof, snow will not stick and the trusses can be lighter and you can use lighter sheathing like 13/32 (7/16).
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I agree with the more is better, but I already have the 4/12 trusses, I have also purchased 60 sheets of 19/32 OSB and the metal roofing to cover it all in the end. This way it will match my house as far as pitch and roofing.
Bib Overalls
Well-known member
Those concrete block gable ends limit (or complicate changing) the pitch for your project. As long as your trusses are engineered for the worst case load you should be OK.
Here are a few pic's of the progress on my roof, we removed all the old trusses starting at 8 am and by 8 pm we had the new roof on. We had to wait out a huge thunderstorm for an hour that ended up taking down part of my drywalled ceiling in my gun shop, but it is repairable.
Attachments
Well I thought I would post an update on my summer project. The scissor trusses went on without much of a hitch, we had to add a top plate to the top of the wall and cut a few of the cinder blocks on the gable ends but nothing to big. Since the roof has been installed I have completed the fascia and soffit, added on to the lean to in order to have all 3 garage doors on the same plane. I replaced the 12 x 12 overhead door with a new insulated door and added openers (liftmaster) to all three doors. I have sided the gable ends with vinyl. All that is left now is to run all the conduit for my lighting, openers, and 2 post lift.