How to Repair an Adobe Wall. Adobe bricks are made out of soil and water. Walls made of adobe brick are usually mortared and plastered with the same adobe mixture that makes the bricks. It's not too difficult to make minor repairs to an adobe wall.

Repair the Plaster

Step 1

Scrape deteriorated or cracked plaster off of the wall.

Step 2

Make adobe plaster using the same basic adobe mixture as the bricks.

Step 3

Spray the area you are going to patch with water to get it a little wet.

Step 4

Coat the area with the plaster until you fill out any depressions and cracks match the preexisting plaster.

Step 5

Allow the plaster to dry.

Repair the Mortar

Step 6

Remove loose or deteriorated adobe mortar from the joint between the bricks.

Step 7

Scrape mortar out of the joint to a depth of two or three times the width of the mortar joint.

Step 8

Make adobe mortar using the same adobe mixture that makes the bricks although a little wetter. You'll also need some adobe plaster, which is a little dryer than the mortar.

Step 9

Spray the bricks around the joint you are repairing with water to get it a little wet.

Step 10

Use a trowel to fill in the joint with mortar.

Step 11

Allow the mortar to dry.

Step 12

Plaster over the repaired area with adobe plaster.

Repair the Bricks

Step 13

Scrape out deteriorated brick and patch it with adobe mortar, if the deteriorated part is small.

Step 14

Make or buy adobe bricks to replace whole bricks or a substantial amount of one.

Step 15

Scrape out and remove deteriorated parts of bricks or whole bricks. It may be necessary to remove some good brick to have a good surface to apply new bricks and mortar.

Step 16

Spray the area you are going to patch with water to get it a little wet.

Step 17

Apply some mortar to the brick and insert it into the wall. Add some mortar if needed to make the patch even with the rest of the wall.

Step 18

Allow the mortar to dry.

Step 19

Plaster over the repaired area with adobe plaster.