> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/hb-energy-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/hb-energy-primer/components/0_basicproperties/ground.md). # Ground ![](/files/nQ9pb4PyxuNnFILhlEZh) ![](/files/-Ma9OXhK1wlixT6-ehDA) - [\[source code\]](https://github.com/ladybug-tools/honeybee-grasshopper-energy/blob/master/honeybee_grasshopper_energy/src//HB%20Ground.py) Change the properties of Honeybee Rooms to reflect those of a ground surface. This is particularly useful for setting up outdoor thermal comfort maps that account for the surface temperature of the ground. Modeling the ground as a room this way will ensure that shadows other objects cast upon it are accounted for along with the storage of heat in the ground surface. The turning of a Room into a ground entails: * Setting all constructions to be indicative of a certain soil type. \* Setting all Faces except the roof to have a Ground boundary condition. \* Removing all loads and schedules assigned to the Room. All values for the typical soil\_types are taken from the Engineering Toolbox, specifically these pages: Soil Conductivity - Soil Density - Soil Heat Capacity - ### Inputs * **rooms \[Required]** Honeybee Rooms to be converted into ground objects. * **soil\_constr** An OpaqueConstruction that reflects the soil type of the ground. This can also be text for a construction to be looked up in the opaque construction library. If a multi-layered construction is input, the multiple layers will only be used for the roof Face of the Room and all other Faces will get a construction with the inner-most layer assigned. Some common types of soil constructions contained in the default honeybee standards library are listed below. (Default: Concrete Pavement). Grassy Lawn Dry Sand Dry Dust Moist Soil Mud Concrete Pavement Asphalt Pavement Solid Rock ### Outputs * **rooms** Rooms that have had their properties altered to be representative of ground conditions. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.ladybug.tools/hb-energy-primer/components/0_basicproperties/ground.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.