Thinking of closing in a deck / porch? There’s some serious consideration that will be needed as it’s not just about adding walls or roofs.
If you have an existing structure that you’re considering closing-in or building on top of, chances are the support structure will need to change in order to accommodate it. While its conceivable that the existing foundation might be sufficient, there will be considerable weight being added in the process. The above pictures are examples of support structures that have failed because load above was too great for them.
Walls and roofs, not to mention the snow load from a roof, require a proper foundation and footing. There’s no reason to think that the original support structure will suffice, unless it was originally constructed with your future renovation in mind. As with any renovation or repair work, there’s plenty you’ll need to think about before embarking on a project of this magnitude. You’ll need to assemble a number of professionals to assist you likely including, for example, a lawyer, qualified building contractor, licensed electrician & plumber to mention but a few.
If you’re thinking of closing in a deck, porch or any other structure protect yourself…get it inspected!