Decide what shelter means
A pergola may provide filtered shade; a solid roof handles rain through a designed drainage system. Screens add insect control, while a glazed enclosure can become a different building scope. Describe the result you want before comparing prices.
Plan the support and the house connection
A deck is not automatically designed to carry a roof. Have the roof support, foundations and connection to the home reviewed as a complete system. Consider light entering nearby windows and where roof water will go.
Keep the outdoor experience practical
Think about furniture, lighting, cleaning access and airflow. Identify electrical or other separate trade work in the scope. Confirm local approval requirements for the roof or enclosure as well as the deck itself.
Questions worth asking
Can a roof be added to any existing deck?
No. A qualified professional must establish the suitability of the support structure and foundations.
Is a screened deck the same as a sunroom?
No. The enclosure, weather protection and building requirements can differ substantially.
Go to the source
Official resources and manufacturer guidance used for this guide. Confirm current requirements for your project and exact product.
Tumwater deck and patio-cover forms

