Product Overview
Rockwool Semi Rigid Insulation is mineral-wool insulation that keeps a defined panel shape but still has some give during fitting. In handling, it sits between soft blanket insulation and a fully rigid high-compression board.
It is used in framed walls, roof build-ups, retrofit cavities, equipment enclosures, and similar areas where the insulation needs to stay in position while accommodating moderate variation in the supporting surface or cavity.
Key Advantages
Semi-Rigid Fit on Uneven Substrates
The mineral-fiber structure is stiff enough to hold its shape but can still follow limited surface irregularity. On retrofit walls, existing masonry, or framed cavities that are not perfectly flat, the board can conform to shallow variation instead of bridging over it and leaving a void behind the insulation.
Controlled Dimensional Tolerances
Product data sets thickness tolerance at ±2 mm for thicknesses of 100 mm or below and ±2% above 100 mm. Width tolerance is ±2 mm; length tolerance is ±5 mm up to 3,000 mm and ±10 mm above 3,000 mm. In repeated panel grids, those limits help adjoining pieces stay aligned and reduce cumulative gap growth over long runs.
Made-to-Order Length up to 12,000 mm
Long pieces can be produced for extended wall or roof runs. Where the support grid allows one uninterrupted panel, fewer butt joints and separate cut lines are needed across the same elevation.
Main Parameters
|
Parameter |
Standard Value |
|
Thickness |
50, 75, 100, 120, 150, 200 mm |
|
Useful width |
950 mm / 1150 mm |
|
MOQ |
200 m² or one container house |
|
Length tolerance (≤3000mm) |
±5 mm |
|
Length tolerance (>3000mm) |
±10 mm |
Customization
Nominal Thickness
Available thicknesses: 50, 75, 100, 120, 150, and 200 mm.
Effective Width
Available effective widths: 950 mm and 1150 mm.
Steel and Color Configuration
Steel sheet thickness can be specified from 0.2 to 1.0 mm, including common 0.5 mm and 0.6 mm options. Color combinations and panel models can follow the approved order schedule.
Quality Control
- Rock-wool material and steel facings are checked on receipt for identification, core consistency, sheet thickness, and surface condition. Panel dimensions and construction are controlled in accordance with GB/T 23932. Inspection records and corrective-action handling are managed in accordance with ISO 9001.
- Production checks make sure the semi-rigid core keeps its profile without local crushing. Inspectors also watch facing alignment, bond continuity, edge geometry, thickness, and width so out-of-tolerance material can be separated before packing.
- Final inspection covers thickness, width, length, flatness, edge condition, and bond integrity. The specified dimensional tolerances are checked with calibrated measuring tools. A 100% appearance inspection follows before packaging, and third-party inspection is accepted when requested.
FAQ
Q: What is the production lead time for Rockwool Semi Rigid Insulation?
A: Standard products take 3-7 days; made-to-order products take 7-15 days.
Q: How is Rockwool Semi Rigid Insulation packed?
A: PE film is used for full wrapping, with L-shaped cardboard or plastic corner guards added for edge protection.
Q: Can the insulation be compressed to fit a smaller cavity?
A: Avoid heavy compression. Trim the board to the cavity size so it fills the space without permanently reducing the specified thickness.
Q: How should the product be stored before installation?
A: Store it flat, dry, and protected from standing water and edge damage, and keep the wrapping in place until the material is ready to install.
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