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Waterguard
Waterguard system

Waterguard

Protect drywall from moisture. Support the finished base.

Waterguard bottom-of-wall profile shown at the base of a gypsum wall assembly
Waterguard bottom-of-wall profile shown at the base of a gypsum wall assembly

Snap Waterguard onto the bottom of the drywall before hanging. The ½-inch profile protects drywall from moisture and gives rubber base continuous backing. It replaces bottom acoustical sealant in the tested non-fire-rated wall.

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Profile height
½ inch
Wall type
Non-fire-rated
Protection
Moisture, smoke and sound
Bottom sealant
Eliminates separate bottom-of-wall sealant.

Install with the drywall.

Waterguard installed at the bottom of a wall before the finish baseInstallation video and best practices
  1. 01

    Snap on the profile

    Match the profile to the board thickness. Place the short front leg against the face of the drywall, align the edges, and snap it on. Don’t pry the legs apart or slide it on from the end.

  2. 02

    Hang and fasten the drywall

    Lift the panel into place and hold it tight against the floor track while fastening it to the studs. No additional screws or glue are needed to attach the profile.

  3. 03

    Install the base

    The profile gives the finished base continuous backing. Use a wall-base adhesive compatible with both the base and Waterguard.

Eliminates separate bottom-of-wall sealant.

Performance

Test results

View the test reports and wall details for this product.

STC up to 71

View the sound-test results
65–69 double-wall
STC 71
55–59 wall
STC 57

STC describes the tested wall assembly, not the product alone. Results do not apply to every wall. Confirm the tested construction and supporting documents for your project.

Request the supporting sound-test report and construction details for your project. Request test details.

Earlier Waterguard acoustic test

In the earlier paired ASTM E90 construction, the wall with Waterguard and bottom acoustical sealant omitted achieved STC 49; the wall with conventional bottom sealant achieved STC 48. The Waterguard specimen included LVT flooring and 4-inch rubber cove base on both sides; sides and top retained acoustical sealant. Each result applies to the complete tested construction. Report H7844.01-113-11-R0 applies to that earlier comparison, not the STC 57 or STC 71 results.

Technical resources

Waterguard test and installation information.

Open resource center
Sound test reportsSmoke and air-leakage testingSection 09 29 00 — Gypsum Board
Get technical helpInstallation video

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