|
|
SW MINNESOTA | Looking at possibly adding a lean to to to one side of my Morton machine shed. Shed is cold storage but would like to heat lean to keep loader tractor in winter for moving snow warm and also warm place to park semi and hopper when hauling grain in winter. Shed has 16’ side walls and if I keep the 4-12 roof pitch I can’t get very wide before it get too low. If I flatten the roof on the lean to part will I have issues with snow building up where the pitch changes? |
|
| |
|
Floyd County, Iowa | hobby95 - 12/29/2017 21:33
.................. If I flatten the roof on the lean to part will I have issues with snow building up where the pitch changes?
Most likely.
Lean-to on north side would maybe have less snow buildup. Maybe.
|
|
| |
|
Southeast Washington | Wouldn't you have a 12 foot sidewall with a 12 foot addition or 10 foot sidewall with an 18 foot wide addition if you continue the current roof line? |
|
| |
|
East Central Saskatchewan | You will have issues with snow build up, but I am looking at doing the same, so watching. |
|
| |
|
s.c. north dakota | I put a lean on the west side of my shop 15 years ago, real happy with it. I had 14' sidewalls, I made it 18' wide but changed the slope from 4/12 to 2/12 so I could put a 11' overhead door in the end. I had to use low headroom track, of course. I think I have about 10' wall on the west side, I had to really hug the building with the door to get it to work. All insulated , no heat source but I leave a window open between the shop and the lean and I have never seen in drop to less than 30. I did shovel snow off of it one time, usually it blows clear. |
|
| |
|
West Central Ohio | Which way does the roofline run on the current shed? Can you add on to the west side? Fluid dynamics is your friend . |
|
| |
|
South West Michigan | With the proper truss/rafter specs,you could "almost" have a flat roof and not worry about the snow load. Look up when you visit a MENARDS. |
|
| |
|
N. IL | I have a lean-to on a Morton that was built with the shed. They sheet the roof with OSB under the steel to strengthen it, lots of snow moves off the base building and piles on the lean-to until it falls off. It's plenty strong. |
|
| |
|
| Just did this a couple weeks ago. Original barn is 30x40x16 with 4/12 pitch roof. Open front and faces south. Added a 20’ wide lean-to with 3/12 pitch to add height at the end wall. Worked out awesome.
Edit: first two pics are from December 2013. Then lean-to is from December 2017. Boy do things change!
Edited by Oliver Farmer In MI 12/30/2017 07:57
 (94B18918-D9BC-4B94-9F25-7C02AA5D5D9A.jpeg)
 (7E7B8D4B-E5DD-4A94-81A8-D307A5BBE2E0.jpeg)
 (D0D71E42-1D85-4B6E-A6E9-9B31BB41A055.jpeg)
 (D76B25A4-6392-49DC-AD05-45327EC15A8D.jpeg)
 (C81B200C-A7DE-4CA3-A83D-8713C9EE823C.jpeg)
Attachments
----------------
 94B18918-D9BC-4B94-9F25-7C02AA5D5D9A.jpeg (70KB - 293 downloads)
7E7B8D4B-E5DD-4A94-81A8-D307A5BBE2E0.jpeg (105KB - 285 downloads)
D0D71E42-1D85-4B6E-A6E9-9B31BB41A055.jpeg (111KB - 264 downloads)
D76B25A4-6392-49DC-AD05-45327EC15A8D.jpeg (164KB - 311 downloads)
C81B200C-A7DE-4CA3-A83D-8713C9EE823C.jpeg (126KB - 219 downloads)
|
|
| |
|
Floyd County, Iowa | redfarm - 12/30/2017 07:43
I have a lean-to on a Morton that was built with the shed. They sheet the roof with OSB under the steel to strengthen it, lots of snow moves off the base building and piles on the lean-to until it falls off. It's plenty strong.
Actually, the OSB only "strengthens" the steel sheathing itself by preventing any sagging that might happen from a great deal of weight on the steel between the roof purlins, which would only be 24" on centers.
BUT, the OSB will LOWER the snow or top chord live load, unless the rafters (either half trusses or single chord rafters) were built for the additional dead load of the OSB.
In my opinion, in the case of his lean-to, a person would be better off investing the cost of the OSB into stronger rafter system, to support the snow load that will, at some time, accumulate on the roof.
|
|
| |
|
SE SD | Many buildings are built with flat roofs, do they collapse when they get snow on them? Just have to build it heavy enough to hold the snow. I've seen a large amount of snow on a traditional 4 in 12 pitch roof so I think it's really a moot point. Snow will land on any roof. I have a lean to like you want to build with a 1.5 in 12 pitch. Snow is not a problem, built it strong enough.
Edited by 260 AR 12/30/2017 09:32
|
|
| |
|
west central indiana | got 26 ft leanto on one of mine. here they recommended 2 by 10 on 2 ft centers for snow load 2 12 pitch |
|
| |
|
WCIL | I just added a 50' deep lean too on an older machine shed. I was running into same issue so I went with steel clear span. It has 1/2 to 12 roof pitch. It supports itself and is not tied to old shed structurally, the tin is only thing attracted old shed. I'm very happy with it. Price wise it was same as wooden structure that was only 40' deep. $15sq/ft
 (IMG_7713.JPG)
Attachments
----------------
IMG_7713.JPG (130KB - 290 downloads)
|
|
| |
|
South West Michigan | red1962 - 12/30/2017 10:46 got 26 ft leanto on one of mine. here they recommended 2 by 10 on 2 ft centers for snow load 2 12 pitch WOW, I would not go less than a 2x12 on 16" centers, but that would be so I could sleep at night,LOL! |
|
| |
|
East ks | Now you're talking I like that |
|
| |
|
Floyd County, Iowa | jfreed - 12/30/2017 18:10
red1962 - 12/30/2017 10:46 got 26 ft leanto on one of mine. here they recommended 2 by 10 on 2 ft centers for snow load 2 12 pitch WOW, I would not go less than a 2x12 on 16" centers, but that would be so I could sleep at night,LOL!
He can't be free spanning the lean-to. Must have posts and beams running down the center.
They don't make 2x12's 26+ feet long. |
|
| |
|
South West Michigan | That makes a little sense, Seems like we framed a vaulted ceiling home back in the '80's with 26' 2x12's. They were HEAVY !! |
|
| |
|
SW MN | . |
|
| |
|
Southeast Washington | My 12 foot lean to has 2x12's on 12 inch centers with a 6/12 pitch. It was loaded with 3 feet of snow, warmed up and rained 4 inches on it the last 1 1/2 days. It was getting heavy. Code is 200 pound snow load. Turned on the heat for 16 hours to warm it up to get it slid off. Was a relief to get it on the ground. Was 38 degrees last night in the rain and 16 degrees this morning and lakes of water everywhere. |
|
| |
|
MI | oldbones - 12/30/2017 18:55 They don't make 2x12's 26+ feet long. https://www.menards.com/main/building-materials/lumber-boards/dimensional-lumber/c-13125.htm?Spec_Length_facet=28+foot&ipp=36&Spec_NominalThicknessxWidth_facet=2+x+12 |
|
| |
|
west central indiana | free span. was wrong they are 2by 12 26 ft . got them from grabber post building , snow load probly different from guys farther north. been up 8 yrs. no issues yet |
|
| |
Lean to roof pitch
