BUILD | Exterior Wall Systems

image of adobe and lime stucco finish example

example image of cob wall substrate and lime stucco finish

example image of earth block wall substrate and lime stucco finish

example image on hempcrete and lime stucco finish

example image of straw bale wall substrate and lime stucco finish

Earthaus BUILD is an innovative pozzolanic hydraulic lime (PHL) plaster system designed for exterior application over a variety of earthen and bio-based substrates.

For detailed information about BUILD and its application, download the BUILD Wall System Guide for your substrate below:

Adobe
Cob
Compressed Earth Block
Faswall
Hempcrete
Light Straw Clay
Straw Bale

The Earthaus BUILD Plaster System is engineered for high performance, durability, and long-term breathability. However, lime plasters—including pozzolanic hydraulic lime systems—are not always explicitly addressed in standard building codes.
Code compliance often depends on the full wall assembly, specific local code requirements, and the discretion of the building official or inspector. In many cases, documentation of performance testing can support approval in alternative material reviews.
To assist with permitting or project submittals, here are links to recent compressive strength and vapor permeability test results for Earthaus PHL Binder: (links)

The exterior BUILD System is versatile and can be modified. We recommend seeking advice from a qualified builder or plasterer to determine how and if to modify the system appropriately.

Yes. We have guidelines in place for application of the BUILD Plaster system over framed walls. (Link to Substrate Guide)