[Mikeron]

I have a 3 door garage that has a weird layout. It currently has a flat leaking roof and I want to replace it with a 4/12 shingle roof.

But because of it shape I don't know where to start. Can someone draw me a quick sketch of the framing of the roof?

 

[Mikeron]

This a plan of the shape

 

[Mingledtrash]

If you provide your actually wall measurements from across the garage i can do a quick draw up also, do you have any interior bearing walls and what type of roof do you want hip roof half hip or gable end?

 

[Mingledtrash]

here are a few ideas for you.
personally i like the idea of spanning the two farthest points. it gives you an over hang of 8 feet from the inner most garage door which is kinda nice when it rains you can still pull a car out and still be under the roof.

i think getting trusses built for this could save you a lot of time and hassle. you also need an engineer to look over your plan.

 

[Mingledtrash]

this one is probably your cheapest and easiest to build option if you dont have trusses built for it.

in my opinion it looks the best too.

 

[Mikeron]

If you provide your actually wall measurements from across the garage i can do a quick draw up also, do you have any interior bearing walls and what type of roof do you want hip roof half hip or gable end?

Thank you I'm trying to go for the budget option. Here are some measurements.

 

[Mingledtrash]

You gave me the 20 feet front to back(length) but i need to know the width as well to get the angles right. If i knew trig better i could figure it out from what you gave me but i dont and no matter what i try my drawing software is not being helpful.

 

[Mikeron]

Sorry I added to the pic

 

[ChuckF.]

While you are doing such a significant piece of work on it, why not straighten out the front which would save a lot of work on the roof?

 

[Mikeron]

You must have read my mind, I'm thinking I could Square the front and back up and have a regular roof.

 

[Mingledtrash]

so this is the most budget friendly option.

edit: this one is based on your measurements hopefully it looks close to what you have.

 

[Mingledtrash]

While you are doing such a significant piece of work on it, why not straighten out the front which would save a lot of work on the roof?

I like this idea. but i dont know whether it would really be worth it, you would only gain 2' 7" but there would be significant cost to do it. you would have pour new footings and build new walls and everything so its just a matter of what the budget is also, i think the weird angle half hip actually looks significantly better than a box. so i guess its just a matter of what mikron wants whether to gain 2' 7" and have a box or go with the budget friendly good looking option and keep the same size of garage. My opinion is that if you actually needed the space for a boat or something it would be worth gaining the space but short of that i dont think its really worth it, i would rather have the better curb appeal.

 

[ChuckF.]

Squaring the front with a span, Mingledtrash's first idea, gets you a simpler roof without significant foundation concerns. It means three-side gutters. You would have a nice soffit under the span that you could put vents in and a spotlight or two.

Mingledtrash's second idea is actually very elegant, but complex, and would mean four sides guttering.

Squaring off the front entirely as well as meaning foundation concerns, might lose you three doors if they can't all fit. As is, you are driving through the side two kind of sideways and that must be a tight fit. If you lose three doors you could go with a double and one single, but that lacks symmetry.

You should think which design goes best with the rest of the house, if it is close to the house.

 

[Mikeron]

so this is the most budget friendly option.

edit: this one is based on your measurements hopefully it looks close to what you have.

Brilliant that looks great, is there chance that I could have the skp file?

 

[Mingledtrash]

sure thing glad i could help. I must have forgot to save it so i redrew it real quick so it might not be the same quality but it should be enough to get you started on any modification you want.

 

[Fix'n it]

am i the only one that wants to see real pics of this garage /

 

[Mingledtrash]

am i the only one that wants to see real pics of this garage /

it would be awesome to see how it is now and then see how the project turns out when its done.

 

[Mikeron]

Yes I'll take pics

 

[Mingledtrash]

Squaring the front with a span, Mingledtrash's first idea, gets you a simpler roof without significant foundation concerns. It means three-side gutters. You would have a nice soffit under the span that you could put vents in and a spotlight or two.

Mingledtrash's second idea is actually very elegant, but complex, and would mean four sides guttering.

Squaring off the front entirely as well as meaning foundation concerns, might lose you three doors if they can't all fit. As is, you are driving through the side two kind of sideways and that must be a tight fit. If you lose three doors you could go with a double and one single, but that lacks symmetry.

You should think which design goes best with the rest of the house, if it is close to the house.

I i actually had similar thoughts when i was drawing it I think squaring it off and having a big door and smaller door would be the most functional but it would also require the most work. plus like you said it really depends on how the rest of the house looks design wise so, + 1 on the pictures.

Just i few thoughts i had while drawing the different designs is that the full gable end would really be the easiest to build but would require manufactured trusses. the full hip roof would require a big mutha beam across the front from point to point which may also require new footings and point loads and i think by the time you do that you may as well just square of the front. I also think that no matter which option is chosen, if its at all possible, it would be worth getting manufactured trusses for it because none of the hip rafters/hip trusses will be a normal hip/val angle and if your not a very good carpenter or have a good carpenter on site it could easily turn into a hack job.

i think it would probably be cheaper in the long run to just do the full gable end, if manufactured trusses are available, eliminating rain gutter on one side as well as eliminating two complex hip roofs and little roof in front of the middle door including facia gutter and every thing being at weird angles.