Moisture Monitoring Inside The Walls of The Alamo Church

The Alamo
The Alamo
Aug 5 · 2 min read

by Alamo Conservator Pamela Jary Rosser

For the past 50 years, the walls of the Alamo Church have been deteriorating. There have been several attempts to deal with this over the years, but the walls are still crumbling. The Church walls have uncontrolled moisture and wall loss, which is the most prevalent cause of deterioration in historic structures. After completing the Black Paper Project, the evidence is clear. During this project, we collected over 64 pounds of interior wall loss from only four spaces in 600 days.

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Recently, the preservation team added soil sensors and moisture monitors below grade to the interior and exterior excavation units at the Alamo. This will address the issue of moisture inside the walls in a comprehensive manner. The purpose of the program is to determine the water source or sources as well as to monitor the temperature, moisture, and humidity movements below and above grade. This monitoring program will collect data that will help determine how the Alamo Church will be preserved for the next 300 years.

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Using state-of-the-art technology that has never been used at the Church, these sensors and monitors will be placed into excavation units inside and outside the Church.

In the coming weeks, above grade moisture movement sensors will be added to the walls of the Alamo church, which will the preservation team with data that they will monitor closely for 12 months.

Types of sensors

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Soil moisture sensor — collect content to determine salt levels
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Temperature and humidity sensor — data will show if the soil is cooler or warmer that the walls
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Water sampler — to determine water source or sources.

Save The Alamo

The Alamo defines Texas.

The Alamo

Written by

The Alamo

Site of the 1836 Battle of the Alamo and Shrine to Texas Liberty www.thealamo.org

Save The Alamo

The Alamo defines Texas. There is no greater honor than to reinforce this place and tell its story. Its story is the story of Texas. There is one name above others that echoes around the world, speaking courage and liberty to all who hear it — and that name is the Alamo.

The Alamo

Written by

The Alamo

Site of the 1836 Battle of the Alamo and Shrine to Texas Liberty www.thealamo.org

Save The Alamo

The Alamo defines Texas. There is no greater honor than to reinforce this place and tell its story. Its story is the story of Texas. There is one name above others that echoes around the world, speaking courage and liberty to all who hear it — and that name is the Alamo.

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