Need ideas on how to span 40' for a lean-to carport/patio cover

[ultrarunner]

Zoning prohibits all accessory buildings... so even being on 2 acres adding on tractor space means the addition must be attached to the home.

Home is rectangular in shape and on a downslope all the way to the creek at the bottom.

I'm envisioning something like a giant attached "Carport" attached to the back house wall running the length of the home...

The closer it looks to a patio cover the better my chance to get it approved.

No snow load here but every 5 or so years we do get gusts 80 mph+.

Wonder what options I have to build a low slope, 30 to 40 wide carport with one side attached to the stucco home?

The free span is important to me... so the supporting structure would need to be sufficient to span the width.

Is this something metal building trades would do?

Open to any ideas...

 

[CalG]

Zoning prohibits all accessory buildings... so even being on 2 acres adding on tractor space means the addition must be attached to the home.

Home is rectangular in shape and on a downslope all the way to the creek at the bottom.

I'm envisioning something like a giant attached "Carport" attached to the back house wall running the length of the home...

The closer it looks to a patio cover the better my chance to get it approved.

No snow load here but every 5 or so years we do get gusts 80 mph+.

Wonder what options I have to build a low slope, 30 to 40 wide carport with one side attached to the stucco home?

The free span is important to me... so the supporting structure would need to be sufficient to span the width.

Is this something metal building trades would do?

Open to any ideas...

let go of the free span concept.

Posts are beautiful

 

[BHD]

I suggest one start with some thing 40 foot long,

an open web truss is what I would consider, go in to a large box store and look up and you will see trusses with basically two angles on top and on bottom, or two rods on the bottom, with a (web) usually of a round rod bend in a W type shape ,in the middle,

some times one can find them used from a salvage locations, here is some on Ebay 50" long 3 feet deep. 5' Steel Bar Joist 36" x 5' Steel Floor / Roof Trusses Steel Joist | eBay

 

[ultrarunner]

But moving cars the are not running and machinery without interior posts adds options.

My perfect building would be 40 wide by 88 with one large gable end door...

Can't to the gable because the new structure has to be attached and rotating 90 degrees would limit as the "Shelf is 43 feet wide and 3' required for walkway...

 

[ultrarunner]

I suggest one start with some thing 40 foot long,

an open web truss is what I would consider, go in to a large box store and look up and you will see trusses with basically two angles on top and on bottom, or two rods on the bottom, with a (web) usually of a round rod bend in a W type shape ,in the middle,

some times one can find them used from a salvage locations, here is some on Ebay 50" long 3 feet deep. 5' Steel Bar Joist 36" x 5' Steel Floor / Roof Trusses Steel Joist | eBay

Yes... something on this order.

 

[quicksandfarmer]

This site has a lot of information on steel trusses:
Armour Metals Measuring & Installing - Metal Roofing and Pole Barns

(I'm not endorsing them, I've never bought from them, I just find the site interesting).

From your description I'm not sure what the dimensions are that you're talking about. They do lean-to trusses up to 24' and barn trusses up to 44'. With a bar joist the pole spacing can be 24' on the eave. In theory you could do a 24x44 barn with just four posts, one on each corner.

The problem is the loads. You have to make sure that the posts and their footings can handle the loads that a roof that size can generate. You also need to figure a way to attach it to the existing structure without damaging it. I would recommend talking to an engineer about what typical building design loads are in your area. I imagine you have to do earthquake loads?

 

[CalG]

remember

The existing structure is going to carry half the load in both direction.

Are those roof rafters on the house tied down well? Or just toe nailed?

And what pitch is going along with a 40 root shed roof run. Better draw it out to scale....

 

[ultrarunner]

Seismic is required which leaves out most of the prefab guys... they often have disclaimers for California.

A lean-to of some type appears to be the best for approval and aesthetics since it must be attach...

Most of the "Kit's go 20 or even 22 wide... and I am thinking double that.

Just closed on the property and the sellers have 90 day holdover... so only thinking about options...

Would like to have as many as my 50 vehicles together in an organized manor especially the ones I restored...

Lots of great barn plans out there... post and beam... metal, pole, etc... just zero chance of getting one approved.

It is interesting in that my current home has zero seismic design... no sheer walls, not piers imbedded...etc.

The new home is almost across the street and has over a hundred yards of concrete with many 22' deep piers and tons of rebar... fire sprinklers, radiant... etc... a big difference 35 years makes... 1957 construction and 1993 construction.

 

[quicksandfarmer]

It is interesting in that my current home has zero seismic design... no sheer walls, not piers imbedded...etc.

The new home is almost across the street and has over a hundred yards of concrete with many 22' deep piers and tons of rebar... fire sprinklers, radiant... etc... a big difference 35 years makes... 1957 construction and 1993 construction.

And you're going to have to do 2018 construction! I think you need to talk to someone local, experience from other places doesn't sound like it's going to apply.

Spanning 40' with a roof truss isn't a big deal. The issue is going to be making the walls to support it. I still don't get your layout from your description, but it sounds like the ridgeline of the existing house is perpendicular to the ridgeline of the addition you want to put on. Do a Google image search for "T-Shaped Roof" to get some ideas.

Another thing to look into is exactly what the local definition of "connected" is. Around here they're very strict that you can only have one residence per lot, but you can have a guest house that is "connected" to the main house by a walkway with a roof. Each building has a separate foundation, but if a roof runs between them it's one building. Something like that may be your easiest option.

 

[ultrarunner]

Not very good with sketches...

parallel to the roof line and adjoining the home on the downslope backside is what I call a shelf... currently it is a 40 by 70 level lawn area... at 44' parallel from the back wall of the home is a 4' block retaining wall so the lawn area could be level

So basically, I have a 40x70 flat area before the down slope to the creek.

The 40 x 70 flat lawn area itself is 4' below the house floor slab level of... making it possible to tuck a attached lean-to structure to the back wall and keep it below window sill height if the roof pitch is kept to a minimum.