How to Determine the Optimal Moisture Content of Drywall and Gypcrete

Posted by Tom Laurenzi on Apr 16, 2024 10:10:46 AM

Are you curious about the optimal moisture levels for drywall and gypcrete?

Look no further! This guide uncovers insights that will help you protect your structures and make informed choices. Our discussion will also shed light on whether materials need replacement or if they are durable, highlighting the Delmhorst BDX-30 moisture meter and the features that set it apart as an indispensable tool.

1. What are the Optimal Moisture Levels for Drywall/Gypcrete?

The optimal moisture level for drywall is typically 1% or lower. If the moisture content in drywall is over 1% it is considered compromised and may need replacement. Moisture meters used for drywall should be calibrated precisely to detect even the tiniest amount of moisture.

The Delmhorst BDX-30 moisture meter has a gypsum scale that detects as low as 0.1% moisture in drywall and gypcrete. This sensitivity level is fundamental to determining if drywall or gypcrete is susceptible to damage.


2. Is It Possible to Save Drywall with Moisture Content Above 1%?

Two factors determine whether drywall can be saved — the extent of moisture (above or below 1%) and the length of time the drywall has been exposed to moisture. There is a chance to save the affected drywall if the drying process is fast. Nevertheless, if you have moisture in drywall, you should leave the decision to an experienced professional. It is safer to replace the drywall if the moisture content is over 2% at any point.


3. What is Gypcrete’s Optimal Moisture Level?

Office buildings commonly use gypcrete as a subfloor solution mix of gypsum and sand. This flooring reduces noise, resists fire, and is easily applied to create seamless floors.

Gypcrete is poured onto a surface and allowed to dry gradually. Apply a sealant once the gypcrete is dry as the sealant prevents water absorption.

Gypcrete is made mostly from gypsum, making the Delmhorst BDX-30 moisture meter ideal for measuring it. 1% or lower is recommended for gypsum products, such as wallboard. However, manufacturers may suggest installing flooring over gypcrete with a 5% threshold. It's always a good idea to seek advice from the manufacturer's technical support team.


4. How to Measure Moisture in Drywall and Gypcrete

A drywall moisture meter with a gypsum measuring scale is the easiest way to measure the moisture content of drywall. You can read the drywall meter by inserting the measuring pins into the drywall or gypcrete meter you are using to test, and pressing the button. It will measure the sample’s moisture content and provide a reading. 

Drywall and dry gypcrete can be tested with a “reference” scale meter if a moisture meter with a direct gypsum scale is unavailable. The scale provides relative, wetter/drier moisture levels and indicates that the gypsum is too wet and either needs to be replaced (if drywall) or dried further (if gypcrete was recently poured).


5. What Are the Advantages of Using the BDX-30 Moisture Meter?

The Delmhorst BDX-30 is the latest addition to the Navigator™ lineup. This powerful meter combines all the design elements and functionalities of the BDX-20, with the added advantage of Bluetooth® integration. The Delmhorst EDGE app means you can export data from anywhere, complete with geotags and timestamps. The EDGE app also offers a selection of 37 species and materials. The BDX-30 is the ultimate solution for making even the most challenging projects easier, more efficient, and accurate using advanced technology whether you are in the field or the office.


Delmhorst BDX-30 Stand-Out Features

Precision in Moisture Management: The BDX-30 uses a gypsum scale to measure moisture and can read levels as low as 0.1%. This precision level is essential to detect moisture early and prevent costly repairs.

Enhanced Sensitivity: BDX moisture meters can detect even the tiniest change in gypsum or drywall moisture early on due to their sensitivity. Early warning systems enable proactive measures to prevent costly replacements and maintain material integrity.

Versatility: Anyone using gypsum-based materials should use the BDX-30's gypsum reading scale. It is the ultimate management tool because it is versatile enough to measure moisture in gypcrete and drywall.

Easy to Use: Users will find the BDX-30 extremely easy to use. The quick press of a button allows for quick and accurate moisture readings, enhancing the efficiency of drywall and gypcrete assessments.

A Reliable Decision Support Tool: Construction professionals need the BDX-30 to support their decision-making process. Moisture detection at an early stage can prevent structural issues and associated costs.

The BDX-30 moisture meter stands out because of their innovative technology and precision. In addition to its seamless integration of Bluetooth® technology through the Delmhorst EDGEapp, the BDX-30 redefines moisture management standards with precision, sensitivity, and versatility.

Get expert help and advice on all your moisture testing needs by contacting Delmhorst today. Experienced professionals stand ready to provide you with accurate moisture content monitoring information.

Stay tuned for our upcoming case study, where we will explore real-world scenarios in which understanding and managing moisture content plays a key role in maintaining the structural integrity of drywall and gypcrete.


Topics: Moisture Meter