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Emseal QuietJoint SHH
Emseal QuietJoint SHH is a mass-loaded acoustic partition closure for interior, non-moving joints at partitions, mullions, and head-of-wall.
- Blocks sound, draft, heat, cold, and dust
- Two-sided coating (SHH)
- Non-invasive install, no moving-joint rating
Emseal QuietJoint SHH Acoustic Partition Closure
Emseal QuietJoint SHH is a mass-loaded acoustic partition closure for interior, non-moving joints and gaps. The fire-resistant foam core, coated on two sides, blocks sound, draft, heat, cold, and dust between partitions, mullions, and head-of-wall conditions. It installs without metal anchors, fills the gap by compression, and is not for moving or trafficable joints.
Key Features
- Mass-loaded foam cuts sound between rooms
- Two-sided coating for partition-to-mullion gaps
- Fire-resistant core, Class A smoke and flame spread
- Insulates the gap (R-value about 2.85 per inch of depth)
- Non-metallic, non-invasive anchoring
- Not for moving joints or traffic
Applications
- End of partition to window mullion
- Head-of-wall and stud-wall closures
- Interior gaps at curtain wall and window wall
- Permanent, semi-permanent, and movable partitions
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika Emseal |
| Product | QuietJoint SHH |
| Type | Mass-loaded acoustic partition closure |
| Coating | Two sides (SHH) |
| Joint widths | 1 in to 4.75 in |
| Depth | 2 in standard |
| STC / OITC | STC 53 / OITC 38 in STC 56 / OITC 38 wall |
| Fire | Class A smoke and flame spread, ASTM E84 |
| R-value | 2.85 per inch of depth |
| Moving joints | Not intended |
| Traffic | Not trafficable |
| Colors | Standard and custom; foam hidden at the face |
Product documents: QuietJoint Product Data Sheet (PDF)
Frequently Asked Questions
What does SHH mean?
QuietJoint coated on two sides, used at the end of a partition to a mullion or similar two-face gap. SHG is the three-sided version; it is not this listing.
Will it take movement?
No. QuietJoint is for interior, non-moving joints and gaps. Overcompression can overload weak substrates.
What sound rating is published?
STC 53 and OITC 38 when tested in an STC 56 / OITC 38 wall at 2 in depth. Deeper installs raise the R-value.
Is it a fire-rated expansion joint?
The core is fire-resistant with Class A E84. It is not a UL 2079 moving fire joint like WFR2 or SSF2.
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