Sunroom, Greenhouse and Skylight Plans

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This plan set shows you how to build glass walled sunrooms with a glass roof, large site built skylights in a standard roof, and large fixed glass windows anywhere in the house. The plans make use of inexpensive double glazed tempered glass panels (commonly available for sliding glass doors).

A key to this simple glazing system is a special aluminum-coated butyl rubber sealing tape designed for severe waterproofing conditions. This tape was developed for sealing modular buildings on the North Slope oil fields of Alaska. It allows you to build large leak-proof skylights and window walls using standard wood working tools. The system is easy to build and is forgiving of errors. It is also less costly than commercial glazing systems. Plans include supplier information for finding and ordering the tape.

This same system is being used by several west coast sunroom companies to build high-end custom wood sunrooms and greenhouses.

These plans include everything needed to build skylights in an existing roof or install fixed glass windows in an existing wall. The plans include information a builder or owner would need to layout a sunroom including framing for the glass, installing the glass, foundation details and attachments and insulating and venting the roof. However, such things as attachment to the house, rafter and beam sizes, door and opening window placements will vary and must be determined to meet your specific situation.

You will use these details to flesh out your own specific layout. This is not a plan for a specific sized sunroom or greenhouse.

Tip: In many areas you can find tempered glass panels at very good prices from recyclers or from shops that make up double glazed units. Tempered glass cannot be recut, so slight imperfections must be rejected. Panels with light scratches (but the same clarity and strength) can often be found as seconds at prices as low as $30 for an insulated unit 34” x 76”. This size panel lets in a lot of light!


A two-story sunroom built using these plans and standard tempered patio door glazing units.

The sunroom serves as the main hall and entry and has seven sets of french doors opening onto it.

This sunroom and skylight building system has been field tested for 17 years. A sample of the butyl tape and product supplier information is included with your plans.

Plans are $15.95 and sent as a PDF attacment. 

Note: This plan is available as a free Download when you join our sister site See all the free downloads at HERE. Be sure to see both pages.

Price: $15.95  # P002

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CountryPlans LLC
5010 Inglewood Dr.
Langley, WA 98260