Improving under deck enclosed carport

[jaydo]

The house we bought a few years ago has an enclosed carport under the rear deck, which is covered in duradeck ( vinyl decking). I would like to make it a more usable space.

Currently, the ceiling is open, and the ceiling joists overhang the walls on one side, so there is open air. This results in a few problems, hot in the summer with the sun on the deck and cold in winter with the air just blowing in. And perhaps worst of all rodents!

I'd like to make the space better for woodworking. Ideally I would drywall/insulate the whole space, add additional lighting and a sub-panel for more electrical.

I'm not sure if the under deck nature of the garage is going to pose any additional issues, and would appreciate the sage advice of the forum!

Thoughts I've had are that I would use rigid foam to make a vent baffle between the decking and the insulation for the ceiling, running to the end which should have soffits. Or simply sealing off the open air area, and spraying the ceiling white, and living with the heat. I do worry about not noticing leaks in the duradeck if a drywall it.

I've attached a few photos for reference!

 

[Higgins]

The house we bought a few years ago has an enclosed carport under the rear deck, which is covered in duradeck ( vinyl decking). I would like to make it a more usable space.

Currently, the ceiling is open, and the ceiling joists overhang the walls on one side, so there is open air. This results in a few problems, hot in the summer with the sun on the deck and cold in winter with the air just blowing in. And perhaps worst of all rodents!

I'd like to make the space better for woodworking. Ideally I would drywall/insulate the whole space, add additional lighting and a sub-panel for more electrical.

I'm not sure if the under deck nature of the garage is going to pose any additional issues, and would appreciate the sage advice of the forum!



Thoughts I've had are that I would use rigid foam to make a vent baffle between the decking and the insulation for the ceiling, running to the end which should have soffits. Or simply sealing off the open air area, and spraying the ceiling white, and living with the heat. I do worry about not noticing leaks in the duradeck if a drywall it.

I've attached a few photos for reference!

Check out under-deck storage. You will see many options for enclosing patio decks !!

Cheers !!!

 

[jaydo]

I've definitely searched around for those who have done something similar. I've found a few under deck storage ideas, but not any under deck workshops.

The existing space has a solid foundation/slab, with 7' 8" ceilings.

 

[MFolks]

Time and money,Getting it enclosed and rodent resistant will be your first projects. Putting a shop down there is feasible, woodworking,maybe some metal working too?

 

[GS-Louie]

Before doing anything in the car port I would work on the deck. You need to be absolutely sure that there is no water leakage from the deck to anything underneath it. I would try to build a sloped roof over the carport that does not touch the deck joists at all. Then install a rubber roof on that.Under the new roof I would build in space to insulate the rafters and allow for air passage, the same as you would do in a house with a flat roof. I would get as much insulation in the outside walls as can fit. Finally, I would build a level wood floor on the ground. Lay down some plastic first for a moisture barrier, then I would cover that with some thin foam insulation board. Then build the floor putting foam insulation board between t he floor joists. I may even use some blown in foam instead of the foam board. This should help keep your wood shop warm and dry.

Hope this helps.

Lou

 

[jaydo]

So, rip off the vinyl, make an epmd roof with a separate walking surface on top?