Award-winning engineered limestone

The look of Indiana limestone. A fraction of the weight.

Panel-D glues to your wall and looks like real cut stone.

Two panels. One look.

Keep scrolling for Panel-D, or tap Lime-ROK.

Up close

3/8" thin.
Under 3 lb per sq ft.

The same area of natural limestone weighs about 40 to 50 lb.

The colour and finish run right through the panel, not just on the surface.

12 × 24 in
18 × 36 in
24 × 48 in

One-piece corners, 12×24×4 and 18×36×4 in. The 4" return looks like a standard limestone block.

Up close

1 3/8" thick.
3 lb per sq ft.

The same area of natural limestone weighs about 40 to 50 lb.

A 3/8" stone face is bonded to a 1" foam core.

2 × 4 ft
2 × 6 ft
2 × 8 ft

New construction

Built from the wall out.

Grey is the wall your builder puts up. Red is Styrok. Watch it go on, layer by layer.

Your wall
Studs

The frame of the house. Panel-D needs no extra structural support.
Your wall
Sheathing

Plywood or cement board. It closes in the frame and gives every layer a solid base.
Your wall
Water barrier

A thin sheet that keeps water away from the frame.
Your wall
Adhesive ribbons

Ribbons of adhesive hold the insulation board. The gaps between them let water drain down and out.
Your wall
Insulation board

It keeps the heat in. Your builder picks the type and thickness.
Your wall
Base coat and mesh

A thin coat with fibreglass mesh makes a strong, flat surface. No finish coat is needed. Panel-D is the finish.
Styrok starts here.
Behind this line is your wall. In front of it is Styrok.
Styrok Panel-D
StyGRIP™ adhesive

Troweled onto the whole back of each panel. No screws. No nails. It sets in 24 hours.

½" notched trowel · 100% coverage · no fasteners
Styrok Panel-D
Panel-D

The part you see and touch. A polymer-modified glass-fibre cement panel with the limestone finish all the way through. No two are exactly alike.

3/8" · 12×24, 18×36, 24×48 in · Light or Dark Limestone
Styrok Panel-D
Levelling clips

Small reusable clips keep the panels flush and the joints even while the adhesive sets. They come out after about 24 hours, before grouting.
Styrok Panel-D
StyFLEX™ grout

It stays a little flexible after it cures, so small movements won’t crack the joints. It comes in both panel colours.

StyPATCH™ finishes cut edges and mitred corners, so they look seamless.

3/8" joints · soft U-joint or crisp square joint

Retrofit

Already have a wall? Keep it.

Panel-D goes right over sound brick, stone or stucco. Nothing gets torn down.
Your wall
Your existing brick

It just needs to be sound. Stucco works too, if it’s in good shape and well bonded.
Your wall
Levelling compound

Bumps over ½" are ground off. Then a cement-based compound makes the wall flat.

Up to ½" thick
Styrok starts here.
Behind this line is your wall. In front of it is Styrok.
Styrok Panel-D
StyGRIP™ base coat

A coat of StyGRIP goes on the flat wall first. The panels glue on over it.
Styrok Panel-D
Then Panel-D goes on

StyGRIP™ adhesive, the panels and StyFLEX™ grout, just like on a new wall. No screws. No steel.

Lime-ROK

Stone outside. Insulation inside.

Lime-ROK is a stone face on a foam core. You see and touch the stone. The foam adds insulation and keeps the panel light. We’ll show you both.
Your wall
Studs

The frame of the house.
Your wall
Sheathing

Plywood or cement board. It closes in the frame and gives every layer a solid base.
Your wall
Water barrier

A thin sheet that keeps water away from the frame.
Your wall
Adhesive ribbons

Ribbons of adhesive hold the insulation board. The gaps between them let water drain down and out.
Your wall
Insulation board

It keeps the heat in. Your builder picks the type and thickness.
Your wall
Base coat and mesh

A thin coat with fibreglass mesh makes a strong, flat surface. No finish coat is needed. Lime-ROK is the finish.
Lime-ROK starts here.
Behind this line is your wall. In front of it is Lime-ROK.
Styrok Lime-ROK
Exterior adhesive

An exterior-grade polymerized adhesive glues each panel to the wall. No fasteners.

1 3/8" panel · 3 lb per sq ft
Styrok Lime-ROK
The foam core

Yes, there’s foam. It’s bonded to the back of the stone face. It adds insulation and keeps each panel light.

Lime-ROK is combustible. It is not rated non-combustible like Panel-D.

1" Type 2 EPS · about R4.2 per inch · 20 psi
Styrok Lime-ROK
The limestone face

Glass-fibre-reinforced concrete with an engineered limestone finish. Sealed, honed and machine-trimmed. It’s what you see from the street.

3/8" · Natural Limestone
Styrok Lime-ROK
Levelling clips

Clips keep the panels even while the adhesive sets. They come out before grouting.
Styrok Lime-ROK
Grout

The joints are filled with grout, just like stone.

Compare

Panel-D or Lime-ROK?

The same limestone look, built two ways.

Panel-D compared with Lime-ROK
Seen edge-on, to scale	Panel-D	Lime-ROK
What it is	A single glass-fibre cement panel	A stone face bonded to a foam core
Thickness	3/8"	1 3/8"
Insulation in the panel	None	About R4.2
Fire	Class A, non-combustible	Combustible
Sizes	12×24, 18×36, 24×48 in	2×4, 2×6, 2×8 ft; custom available
Colours	Light Limestone, Dark Limestone	Natural Limestone
System parts	StyGRIP, StyFLEX, StyPATCH	Exterior adhesive and grout
Height	Up to 3 storeys; 6 with Styrok’s OK	Up to 3 storeys