Specifications: 273 sq. ft. interior, 1 bedroom, 1 bath, Footprint: 16′ x 30′
Description: This design uses the same floorplan as Earthbag Vaulted Guesthouse. The main difference is the upper part of the vault is constructed with alternating arched layers of bamboo and bags of insulation (rice hulls, etc.). There are round stained glass windows, and colored bottles embedded in the end walls. Interior walls of earth plaster contain mica to reflect the light, thus the name Rainbow Cottage. Note: this plan is now listed in the free shelter category.