Building a Car Port

[jlgurr]

I like gable overhangs, just a personnal preference.

Me too and it will match the house better.

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[jlgurr]

The gable end roof does not have to extend past the wall. In most homes that's done to add appeal to the look of the house, and also to keep a little water off of the walls. Some houses have gable vents, and if you do that, it's important, but since you don't have a gable vent, it's not needed. If you decide to do that, there is a lot of work to do it right. In your case, I would decide if that's the look you want, and if so, we can go forward with what you need to do to make it happen. If not, then don't worry about it.

Actually I was planning on the overhang and read about the cantilever design in Justin's house build thread.

What I was really asking was whether the deck will extend past the overhang or be flush with the 2 x 4. Looks like the roof deck of my house extends about an inch beyond with aluminum flashing protecting the wood. I could post a sketch tomorrow.

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[EddieWalker]

The decking should be flush with the edges of your trusses. It is very common to install a 1x2 piece of trim at the top of your gable end, then after you put your paper on the decking, you cover it with flashing. I personally like T flashing. It extends the flashing out a bit more and gives you a better drip edge then regular flashing. Both work good.

 

[jlgurr]

Was poking around this afternoon checking closer on the house before getting the new roof work started. Then 'poking' became a sad note rather than a figure of speech.



Found some rotten wood apparently from improperly installed fascia?? Hoo-boy, got to get to the bottom of this before starting the re-roof.

Sorry to derail my own thread... LOL!

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[jlgurr]

Finally started putting down some roof deck. 7/16" OSB on trusses 24" OC.

 

[EddieWalker]

Decking is always fun. You get that instant gratification of making a big change in how it looks quickly!!!

Are you going to install a fascia board? You don't have to, but it does add some strength to the rafter tails and the edge of the OSB. It also makes adding gutters real easy in the future, which is really nice if you have to walk through the water coming off of the roof to get to your car.

The number one reason building fail is movement. They all move, but the more they move, the more that goes wrong with them. Roof start to leak, cracks appear, and then things start to rot. Diagonal bracing is very important in locking everything together. Ideally it should be as low as possible, but with covered areas, its always about two feet down from the top of the posts.

 

[CreekyB]

The number one reason building fail is movement. They all move, but the more they move, the more that goes wrong with them. Roof start to leak, cracks appear, and then things start to rot. Diagonal bracing is very important in locking everything together. Ideally it should be as low as possible, but with covered areas, its always about two feet down from the top of the posts.

I always diagonal brace everything. I built a carport and a patio cover for the engineer that I use when I need a stamp on things once upon a time. He engineered pier and beam along with spans for additions on remodels for me. One of the few times the actual customer supplied me with detailed drawings. He had no bracing specified on the posts so I asked him how he would like them. He stated none they are not needed. So I asked him to explain. If the cover is freestanding you need the supports on the corners to prevent it from falling over due to winds. If the cover is attached to a building and you have the proper roof on then you do not need them as the tie in to the structure and the roof prevents any movement. He stated if the structure fails then you failed in your tie in to existing structure.

I did not do any on his and they are still standing with no issues. I did them on everything attached before his, and honestly everything after. He would also occasionally look at my drawings for remodels and advise me to go with smaller LVLs or glue lams when I was opening spaces up to save money. I just had him stamp the overkill anyways. More is not always better, but overkill brings peace of mind

 

[jlgurr]

I have diagonals to install for stability. Need the trusses covered first, they've been exposed much longer than I'd prefer.

 

[EddieWalker]

... If the cover is attached to a building and you have the proper roof on then you do not need them as the tie in to the structure and the roof prevents any movement. He stated if the structure fails then you failed in your tie in to existing structure.

With all things lumber, this is only true up to a certain distance. That distance is up to the engineer to decide, or the builder if he's comfortable with sizing lumber and it's a small distance. But there is a point when you go so far out that the wood will bend regardless of how well it's attached to the building. This of course assumes that the building is secure. You might be surprised how many newer, open floor plan homes rack something horrible!!!!

 

[jlgurr]

Decking is always fun. You get that instant gratification of making a big change in how it looks quickly!!!

Are you going to install a fascia board? You don't have to, but it does add some strength to the rafter tails and the edge of the OSB. It also makes adding gutters real easy in the future, which is really nice if you have to walk through the water coming off of the roof to get to your car.

The number one reason building fail is movement. They all move, but the more they move, the more that goes wrong with them. Roof start to leak, cracks appear, and then things start to rot. Diagonal bracing is very important in locking everything together. Ideally it should be as low as possible, but with covered areas, its always about two feet down from the top of the posts.

Yep, fascia board is in the plan, as well as gutters. We had the house re-roofed and guttered after a bad hail storm in May. Saved enough gutters to install on this carport. My desire is that the carport look like it is a part of the house and not just an afterthought.

It really has been very rewarding to see it go up, albeit a bit slower than we originally planned. So many different things can occur unexpectedly, lengthening the total duration of the build. You are correct, adding the roof deck makes a big difference in how it looks more quickly than anything else. It has also reinvigorated me to get it done sooner. Partly because the OSB doesn't need to get wet and partly because I can see the light at the end of the tunnel.