How do I attach Sunroom

nateo said:

Ok, so I'm thinking about build sunroom on top of deck. Will probably hire some of the difficult parts out. There is a soffit overhang on this side of the house. What I'm wondering is what to do will happen with that soffit? Would one cut away that overhang making that wall flush? Picture adding a sunroom to the back of a ranch style house.

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The answer is yes.

The right way would be to remove the facia, new roof is run on top of old roof.
The best looking roof would be a gable style roof, not just a a shed style roof.
Some big mistakes you can make is not setting the walls even with the outside of the deck.
The old post may not be strong enough to support a wall and roof system.


Got some pictures?

nateo said:

Ok, so I'm thinking about build sunroom on top of deck. Will probably hire some of the difficult parts out. There is a soffit overhang on this side of the house. What I'm wondering is what to do will happen with that soffit? Would one cut away that overhang making that wall flush? Picture adding a sunroom to the back of a ranch style house.

Click to expand...

Which way are you planning on running the rafters? Shed roof. Gable of Hip roof?

nateo said:

Ok, so I'm thinking about build sunroom on top of deck. Will probably hire some of the difficult parts out. There is a soffit overhang on this side of the house. What I'm wondering is what to do will happen with that soffit? Would one cut away that overhang making that wall flush? Picture adding a sunroom to the back of a ranch style house.

Click to expand...

Which way are you planning on running the rafters? Shed roof, Gable or Hip roof?

nateo said:

Ok, so I'm thinking about build sunroom on top of deck. Will probably hire some of the difficult parts out. There is a soffit overhang on this side of the house. What I'm wondering is what to do will happen with that soffit? Would one cut away that overhang making that wall flush? Picture adding a sunroom to the back of a ranch style house.

Click to expand...

it depends on the pitch of the homes' roof as it sits now. if a high pitch then a knee wall might be built to hold the roof rafters where they cross the exterior walls so that needs to be taken into consideration. Ideally, the new roof/beam for the sunroom lands on the exterior wall of the house and does not connect to the overhang at all... overhang is usually cut out of the way later once sunroom roof is built and dried in

Deck footing and post foundation is not made to support added wall, roof and windows. You must check all connections, especially ledger against the house. Deck staircase must have a new landing where the door will be. If you have hidden fasteners for the deck boards, you may have to brace the deck. Wind and snow loads are two big factors for you.

Posted in the wrong thread...

+1

Code is quite different for spaces under roof vs. open.

A picture will get you a bunch more feedback.

joecaption said:

The old post may not be strong enough to support a wall and roof system.

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Plus snow load, if that's an issue where you live.

carpdad said:

Deck footing and post foundation is not made to support added wall, roof and windows. You must check all connections, especially ledger against the house. Deck staircase must have a new landing where the door will be. If you have hidden fasteners for the deck boards, you may have to brace the deck. Wind and snow loads are two big factors for you.

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hum. intersting. i orginally built deck pretty strong. no posts in ground. lots of 2 by 10's

You provided no information about the design of the deck, your location, or the anticipated loading from the sunroom. Then again, you didn't ask about any of that, so perhaps you are interested exclusively in the soffit detail.

I have trouble visualizing your exact geometric issue without a photo, so I will leave comments on the soffit to others. The points made about conversion of outside space to enclosed space are important, there are almost always significant code issues that can only be fully addressed by having a detailed discussion with the local code enforcement official, unless of course you live somewhere there is no building code and no code enforcement official, or you are planning to do the work without a (needed) permit, which raises other issues.