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Workshop Roof Design


 
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EddyP

from United Kingdom

Joined: 07 Feb 2008
Posts: 132
Location: United Kingdom

PostPosted: Sun Mar 23, 2008 2:42 pm Reply with quote

I'm currently building a brick workshop, and will shortly need to make a start on the roof.
The shed measures 3.8m x 2.4m and ideally i'd like a pitched roof along its length. This would mean i'd have a pitch of approx 20 degrees.
I'd like a roof that doesnt look too industrial, so no corrugated sheet material, i've been considering felt shingles or maybe concrete tiles the same as the ones on the house.
What are peoples thoughts?
Also i'd like to design the trusses so that I can use some of the roof space as storage, which sort of truss design would be best for this?

Thanks
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Deluks

from United Kingdom

Joined: 23 Feb 2005
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Location: Surrey,
United Kingdom
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PostPosted: Sun Mar 23, 2008 3:31 pm Reply with quote

2.4m wide? That sod all, you can knock up a simple triangle using 4x2's and plywood triangles to brace the corners, with a vertical hanger dead centre. If you leave them open you can store lengths of timber, pipe etc up there.

20 degrees will cause problems with some roof coverings, so make sure whatever you go for is specced for the roof pitch, and follow manufacturers guidelines.
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EddyP

from United Kingdom

Joined: 07 Feb 2008
Posts: 132
Location: United Kingdom

PostPosted: Sun Mar 23, 2008 4:49 pm Reply with quote

I was thinking of doing something a bit like this perhaps

http://www.gnomeworks.ca/construct.htm

Is it that a bit OTT for this?

The main bit I dont know how to do is the eaves, not really got any experience of roofs.
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big-all

from United Kingdom

Joined: 12 Jul 2004
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Location: Surrey,
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PostPosted: Sun Mar 23, 2008 5:19 pm Reply with quote

Deluks wrote:
2.4m wide? That s** all, you can knock up a simple triangle using 4x2's and plywood triangles to brace the corners, with a vertical hanger dead centre. If you leave them open you can store lengths of timber, pipe etc up there.



a bit like this
http://s21.photobucket.com/albums/b270/bigall2005/?action=view&current=workshop005.jpg

the span is 10ft the timbers are 3x2" and they are up to 4ft apart to alline with the joins on the 6x4ft sheets on
at 30 degrees and 5ft each side a six foot length gives you 6 inch overlap

i didnt install central hangers as i decided it would impede sorting out the timber in the "A" frames

12mm ply used on the "A" frames this means at the shed ends where the a frames meet the 3x2" side on its the same size
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EddyP

from United Kingdom

Joined: 07 Feb 2008
Posts: 132
Location: United Kingdom

PostPosted: Sun Mar 23, 2008 5:50 pm Reply with quote

big-all wrote:
Deluks wrote:
2.4m wide? That s** all, you can knock up a simple triangle using 4x2's and plywood triangles to brace the corners, with a vertical hanger dead centre. If you leave them open you can store lengths of timber, pipe etc up there.



a bit like this
http://s21.photobucket.com/albums/b270/bigall2005/?action=view&current=workshop005.jpg

the span is 10ft the timbers are 3x2" and they are up to 4ft apart to alline with the joins on the 6x4ft sheets on
at 30 degrees and 5ft each side a six foot length gives you 6 inch overlap

i didnt install central hangers as i decided it would impede sorting out the timber in the "A" frames

12mm ply used on the "A" frames this means at the shed ends where the a frames meet the 3x2" side on its the same size


That looks spot on.
Don't suppose youve got any in progress pics as you built it have you?
What did you tile/dover the ply with?
And also have you put an extra high door on the end or something so you can get access to that area?

Thanks Al icon_smile.gif
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big-all

from United Kingdom

Joined: 12 Jul 2004
Posts: 13620
Location: Surrey,
United Kingdom
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PostPosted: Sun Mar 23, 2008 7:54 pm Reply with quote

i am assuming you can scroll through the 12 pictures by clicking on the small images on the top right hand side!!!

look at the last 2 pictures for the storage doors

or are these any better!!!















the roof is 3 layers torch on felt [now] cost around 150 including a very good drink for the man next door with the gas bottle and torch icon_lol.gif

should last 15 or 20 years icon_wink.gif
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EddyP

from United Kingdom

Joined: 07 Feb 2008
Posts: 132
Location: United Kingdom

PostPosted: Sun Mar 23, 2008 8:29 pm Reply with quote

That looks good Al.
It wouldnt let me see the other pictures in your album from the first link, as it wanted a password.
But the thumbnails you just posted worked ok.
It looks good, I hadn't thought about having opening doors on the end of the gable like that, but its a good idea, think i'll do that.
The trusses look a lot easier than i thought i'd need.
In your first post where you mention the 6" overlap, is that between ply sheets or hte overhand of the sheet from the sides of the workshop?

Thanks icon_smile.gif
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big-all

from United Kingdom

Joined: 12 Jul 2004
Posts: 13620
Location: Surrey,
United Kingdom
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PostPosted: Mon Mar 24, 2008 12:33 am Reply with quote

EddyP wrote:
That looks good Al.
It wouldnt let me see the other pictures in your album from the first link, as it wanted a password.
But the thumbnails you just posted worked ok.
It looks good, I hadn't thought about having opening doors on the end of the gable like that, but its a good idea, think i'll do that.
The trusses look a lot easier than i thought i'd need.
In your first post where you mention the 6" overlap, is that between ply sheets or hte overhand of the sheet from the sides of the workshop?

Thanks icon_smile.gif


the overlap is wholy out the side from the face off the txg shiplap to the edge of the roof

the roof trusses where dead easy i drew a plan on the floor of the shed during construction this allowed me to work out the angle [30 degrees] that also left 6 inches hanging out the side

the plan also let me work out the length of the 3 bits of 3x2" and the cut angles off each plus the 3 pairs of 12mm ply for the a frames
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Clavet

from United States of America

Joined: 29 Jun 2010
Posts: 3
Location: New York,
United States of America

PostPosted: Tue Jun 29, 2010 5:51 pm Reply with quote

hi
I have just been through the same thing. Mine was only 4.2 x 3.2.

Decided to go for a timber frame, using weatherboard on the sides that could be seen to match with the garage/laundry.

I don't know if you can install bracing ply on the inside, but it might make a reasonably cheap interior cladding.

I'll be watching your progress.
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Mw Roofline

from United Kingdom

Joined: 30 Oct 2005
Posts: 2480
Location: Birmingham,
United Kingdom
Thanked: 180 times

PostPosted: Tue Jun 29, 2010 6:15 pm Reply with quote

Clavet wrote:
I'll be watching your progress.



I think he may have finished it by now pal icon_wink.gif
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