Imitation stone insulation decorative integrated board

Imitation stone insulation and decoration integrated board is an innovative exterior wall material that integrates the decorative effect of naturally grown stone with the scale of building insulation and energy-saving functions. During the prefabrication stage in the factory, the insulation core material is combined with a high fidelity stone pattern decorative layer to form a complete board, achieving "one-time installation, dual function". The product has a similar appearance to dry hanging granite and marble, but with lower cost, faster construction, and lighter weight, it is an ideal choice to replace traditional stone and thin plastering systems.

1、 Core structure composition

This product is composed of three functional layers, with stable structure and excellent performance.

The high imitation genuine stone decorative layer is the "appearance responsibility" of the product, presenting realistic stone texture on the substrate through excellent coating technology. The mainstream technologies include:

Waterborne Colorful Coating (Water in Water/Water in Sand) Finish: Using colloidal chemistry technology, multiple colors of water-based coating particles are melted together in a can, and after spraying, a point like or lychee like texture resembling granite or marble is formed in one go. Rich in colors, with a simulation degree of over 90%.

True stone paint finish: using naturally grown colored sand as aggregate, sprayed to form a sandstone like texture, thick and natural, with strong weather resistance.

Fluorocarbon imitation stone paint finish: Covering the surface of the imitation stone paint with fluorocarbon varnish greatly improves its UV resistance, pollution resistance, and self-cleaning performance, resulting in a longer lifespan of the board.

The glossiness (matte, semi gloss, high gloss) and surface effect (flat, matte, lychee surface) of the decorative layer can be adjusted as needed.

The insulation core material layer (functional layer) is located in the middle of the board and is responsible for blocking heat transfer. According to the fire prevention level (based on actual reports) and energy-saving requirements of the project, the following options can be selected:

Rock wool tape (main product for fire prevention (based on actual reports): non combustible material, high temperature resistance (based on actual reports) of over 1000 ℃, all of which meet the requirements of the "Code for Fire Protection Design of Buildings (based on actual reports)" for high-rise buildings.

Graphite polystyrene board (SEPS, B1 grade): It contains graphite that reflects infrared radiation, and its insulation performance is 20-30% higher than ordinary EPS. It is silver gray in color and has a high cost-effectiveness.

Extruded polystyrene board (XPS, B1/B2 grade): Good strength, relatively low water absorption, suitable for damp environments such as basements and cold storage.

Polyurethane rigid foam (PU, B1/B2 grade): The thermal conductivity is relatively low among all organic (based on actual reports) materials, with good insulation effect and strong self-adhesion to the panel.

Thermosetting modified polystyrene board (genuine gold board, A2/B1 grade): forms a carbonized isolation layer during combustion, without dripping, and has both insulation and fire resistance (based on actual reports).

The lining backboard (reinforcement layer) is composite on the inner side of the insulation layer (wall side), usually using high-density calcium silicate board, fiber cement board or metal board. Its function is to increase the bending and impact strength of the board; Balance double-sided stress to prevent warping and deformation; Provide a flat adhesive base and confirm that it is firmly bonded to the wall.

High strength polyurethane adhesive or epoxy resin adhesive is used between each layer, and high-temperature and high-pressure composite molding is carried out on an automated production line to protect long-term use from delamination and hollowing.

2、 Core advantages

The decorative effect is comparable to that of stone, and the cost is greatly reduced: the simulation degree is high, and it is difficult for the naked eye to distinguish from naturally grown stone. But the comprehensive cost (materials+construction+auxiliary materials) is only 1/3 to 1/2 of that of dry hanging stone, especially suitable for projects with limited budget but pursuing high-quality appearance.

Lightweight and high-strength, with good performance: The finished product weight is usually only 8-15kg/㎡, while dry hanging stone (including keel) can reach 50-80kg/㎡. Significantly reduce the load on building structures, and use adhesive anchor bonding during installation, with good resistance to negative wind pressure and no risk of stone falling off at high altitudes.

Construction effect and shortened construction period: dry operation is adopted, and insulation and decoration are completed in one installation. Compared to the traditional process of "first making insulation layer and then hanging stone", it can shorten the external wall construction period by more than 50% and accelerate capital turnover.

Thermal insulation, energy-saving, and green environmental protection (based on actual reports): The core material has a low thermal conductivity (0.024-0.045 W/(m · K)), which effectively reduces building energy consumption. The product is prefabricated in the factory and there is no wet operation on site, reducing dust and waste.

Weather resistant and stain resistant, easy to maintain: The decorative layer usually has self-cleaning function, good acidity and alkalinity, UV resistance, and is not easily faded or powdered after long-term exposure. Daily rainwater flushing can maintain cleanliness without the need for regular application of protective agents like stone.

Avoiding radiation hazards in stone: Natural growing stone may contain trace amounts of radioactive substances, while imitation stone veneers are inorganic coatings that are all environmentally friendly and have no radiation risks.

3、 Applicable scenarios

Excellent residences and villas: Create elegant and heavy stone facades to enhance the level and premium ability of the property.

Commercial and public buildings: hotels, shopping malls, office buildings, sales offices, clubs, schools, hospitals, etc., achieve the unity of aesthetics and energy efficiency.

Energy saving renovation and refurbishment of old buildings: It can be directly hung or pasted on the original ceramic tiles or painted walls, with minimal construction interference and suitable speed to improve the appearance and energy-saving performance of the building.

High rise and higher rise buildings: Their lightweight characteristics make them particularly suitable for the exterior walls of high-rise buildings, avoiding the safety hazards of heavy stone.

Regions with severe cold and hot summers and cold winters: areas with strict requirements for building energy efficiency, where imitation stone insulation boards can meet both energy-saving and appearance needs.

4、 Installation method description (adhesive anchor combination)

Grassroots treatment: Clean up floating dust and oil stains on the wall, confirm that it is basically flat (with an error of no more than 1cm).

Layout and division: Based on the design layout, draw horizontal and vertical control lines on the wall to determine the position of anchor components.

Prepare bonding mortar: Use one-to-one polymer bonding mortar, add water in proportion and mix evenly.

Paste the board: Apply mortar on the back of the board using strip bonding or point frame method, then paste it to the predetermined position on the wall and level it with a ruler.

Mechanical anchoring: Use one-to-one fasteners (such as Z-shaped and C-shaped parts) and expansion bolts to reinforce the side or back of the board with the wall, with at least 4-6 anchoring points per board.

Caulking and sealing: polyethylene foam rod shall be embedded between the board joints, with a scale of 1/2 of the joint width, and then weather resistant silicone sealant shall be injected, and then scraped to form a concave or flat joint.

Cleaning acceptance: Remove the surface protective film, clean the floating dust and adhesive stains, check the flatness and joint quality.

5、 Key points for comparison with traditional solutions

Compared with dry hanging stone: Imitation stone insulation board does not require keel, is lightweight, low cost, integrated insulation, and fast construction, but its performance is stable (usually designed for a lifespan of 25 years) and not as good as naturally grown stone (over 50 years), making it suitable for projects with medium lifespan requirements.

Compared to thin plastering systems and coatings, the imitation stone insulation board has a higher grade and visual impact on the stone. It has good resistance to dirt and crack, avoiding common problems such as cracking, peeling, and water seepage in thin plastering systems.

summary

Imitation stone insulation and decoration integrated board is an excellent balance solution for the "effect, cost, and efficiency" of the current building exterior wall industry. It uses industrial prefabrication technology to solve the pain points of expensive, bulky, and slow construction of naturally grown stone, while also compensating for the low grade and easy cracking defects of traditional thin plastering systems. For equipment manufacturers and homeowners who pursue a stone like appearance, strict energy-saving standards, and need to control overall costs, the imitation stone insulation and decoration integrated board is a very mature and recommended product.