Outdoor Sunroom Ideas: What to Know Before You Build

  • 01 of 05

    Outdoor Sunroom Basics and Ideas

    Oak sunroom with ivy
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    Sunrooms are perfect additions to homes that are starved for sunlight. Typically less expensive than conventional additions, these built-ons offer more window space than wall space to bring in as much light as possible to one end of your home.

    Yet house sunrooms occupy a hazy middle ground in the building world. Some sunrooms are site-built with lumber, trusses, joists, foundation, electricity, and sometimes even plumbing. These are always contractor-driven permitted projects subject to building codes. Except for the large quantity of windows and skylights, these sunrooms might be called room additions or bumpouts.

    On the other end of the scale are pre-fabricated sunroom kits. These sunrooms go up quickly, require less permitting, are less expensive, and can often be built on a do-it-yourself basis. In some cases, they do not require foundations and can be built right onto an existing concrete patio slab or a sturdy ground-level deck.

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  • 02 of 05

    Sunroom Bumpout Addition

    Sunroom Bumpout Addition
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    A house bumpout is a modest expansion of a room but it is not a room itself. And a bumpout falls well short of being a full addition: a multi-room, multi-function structure that is very expensive but which adds major resale value to your home.

    A sunroom tends to be heavily fenestrated. Besides windows, it often has sunroofs or the entire room might be made of glass.

    Combining the idea of a bumpout with a sunroom gives you a bumpout hybrid that is heavily focused on sunlight and relaxation. This hybrid usually does not contain sleeping quarters, a kitchen, or a bathroom.

    The walls are always substantial 16- or 24-inch on-center wood-framed, insulated walls. The sunroom aspect is that these walls are populated with far more windows than might be found in an ordinary sitting room.

    From the exterior, these custom-built hybrid sunroom-bumpouts blend in well with the rest of the house. Siding, paint, roofing, and window styles all match. The only clues that this might be a sunroom are that it has an unusually large number of windows and that it extends farther into the property than the rest of the home.

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  • 03 of 05

    Pre-Fabricated Sunroom Kit

    Wicker chair in a conservatory
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    The pre-fabricated sunroom kit is by far the most common and most accessible type of sunroom available to homeowners.

    This type of sunroom has been previously designed and built elsewhere, off-site from the home. Its design is independent of any individual house. Usually, companies that design and build pre-fabricated sunrooms create a number of styles, shapes, and sizes so that homeowners can find one that best matches their own home.

    Unlike stick-built structures, which are constructed of wood and drywall, pre-fabricated sunrooms are chiefly made of steel, aluminum, tempered glass, and foam insulation. 

    From the inside, pre-fabricated sunrooms retain not just an exterior wall but the look of that wall. The home's exterior siding usually stays in place and doors that lead into the house are retained. From the outside, these sunrooms look very much like add-ons. These sunrooms usually have metal roofing. Since glass covers nearly every vertical area, it is not possible to continue the home's siding onto the sunroom.

    Three-season sunrooms are lightly built and work well when the sun is strong. But during the winter, when temperatures dip low and the sunlight is at a premium, these three-season sunrooms are usually too cold to be habitable. Four-season sunrooms have extra insulation and care has been taken to run heating or cooling out to that space.

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  • 04 of 05

    Sunroom Conservatory

    Sunroom Conservatory
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    Plants and flowers are the focus of a sunroom conservatory. This type of sunroom approaches greenhouse status since all walls and even the roof are made of glass. Flooring, too, is usually hardscaped in porcelain or ceramic tile, natural stone, or concrete for easy cleanup after watering.

    When there is furniture, it is usually outdoor furniture because the humidity levels in the sunroom would ruin fabric-covered furniture. Usually, though, furniture is kept to a minimum. 

    Conservatory-style sunrooms are best for dedicated gardeners. Resale value for these types of sunrooms can be on the lower end since they are not habitable.

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  • 05 of 05

    Back Porch Sunroom

    Back Porch Sunroom
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    True to the name, a back porch sunroom is located on and in the area of a former back porch. The main feature that distinguishes this type of sunroom from others is its location. Sometimes, this sunroom still retains most of the back porch's building elements. Flooring, roof, ceiling, and walls are the same. The only difference is that the open or screened windows have been replaced with glass windows.