Building from the Watershed

One of the primal attractions to building with earth is harvesting raw materials from the construction site itself. In the old days (pre-industrial revolution), that was always the
case. Soil dug from the foundation trenches or from a nearby borrow pit was either molded into sun-dried bricks…

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What is Rammed Earth?

Rammed earth is a structural wall system built of natural mineral soils compacted in thin layers within sturdy formwork. The strength and durability of the wall results from the densification of a clay, sand, and gravel matrix. The mass of the wall provides superior thermal and acoustic properties.

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Watershed Materials - a New Chapter in Sustainable Building

The Watershed Block is a beautiful and environmentally sustainable natural alternative to conventional concrete masonry block. Watershed Blocks are produced with a proprietary process from a blend of naturally occurring and recycled aggregates, clay minerals, ordinary cement, and pozzolanic binders. The process creates durable structural masonry blocks that reflect the character of local soils.

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Watershed Materials website

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  • R WB26

    R WB26

    2-color coarse rammed earth.

  • S KK21

    S KK21

    Decomposed granite sample tablet.

  • P HR37

    P HR37

    Poured capital against pise wall.

  • R WB27

    R WB27

    Detail at corner, rammed earth.

  • R WB28

    R WB28

    Corner of curving wall, rammed earth.

  • R BL28

    R BL28

    Vines on 15-yr old rammed earth garden wall.

  • R BI25

    R BI25

    2-color stratified rammed earth.

  • S HR13

    S HR13

    Aged pise formed face.

  • P HR34

    P HR34

    Rust stains on poured exterior column.

  • R PD30

    R PD30

    Stainless signage on entry wall.

  • S HR 12

    S HR 12

    Double-shot pise

  • P HR32

    P HR32

    Lichen on poured pool coping

  • P NC35

    P NC35

    Rock pocket in sample tablet.

  • R BI29

    R BI29

    Rust stains on entry column.

  • R LV25

    R LV25

    3-color stratified rammed earth.

  • R MK27

    R MK27

    Sandblasted pise.

  • P HR39

    P HR39

    Fire-brick and coping stones.

  • R WB27

    R WB27

    Slip-plane_stratification rammed earth.

  • R HR22

    R HR22

    Rammed garden wall.

  • S MK15

    S MK15

    Pise sample tablet.