Application of Longtime PU Stone in Old Building Renovation: No Relocation, Demolition or Structural Reinforcement Required

   The renovation of the exterior facades of old residential districts, villas and historical buildings has long faced a contradiction: natural stone has an excellent effect, but its weight and construction difficulty are extremely unfriendly to existing buildings. Ceramic tiles are prone to falling off, coatings are low-grade, and GRC (Glass Fiber Reinforced Cement) is prone to cracking... Is there a material that can not only truly restore the stone texture, but also adapt to old structures and low-disturbance construction?

   Longtime PU Stone (Polyurethane Stone-Imitating Decorative Panel) provides the answer.

1.What is Longtime PU Stone?

   Longtime PU Stone uses polyurethane polymer material as the base material, which is foamed and formed through precision molds to truly replicate the texture and quality of natural stone. Its core advantages are reflected in four words: light, real, fast, and cost-effective.

• Light: Only 8-15 kg per square meter, about 1/4 of natural stone.
• Real: High-precision molds + multi-layer coloring technology, indistinguishable from real stone to the naked eye.
• Fast: Sawable and bondable, one person can paste 20-30 ㎡ per day.
• Cost-effective: The comprehensive cost (material + transportation + installation + maintenance) is much lower than that of natural stone.

2.Comparison Between Longtime PU Stone and Common Renovation Materials

Conclusion: Longtime PU Stone achieves the best balance between realism, weight and construction convenience, making it particularly suitable for old renovation projects that cannot bear loads and do not allow long-term disturbance to residents.

3.Core Renovation Advantages (No Relocation, Demolition or Reinforcement Required)

• No Relocation Required

      Traditional stone renovation often requires residents to move temporarily, with a construction period of several weeks. During the construction of Longtime PU Stone, there is no large amount of dust or continuous strong noise, and residents can live normally.

• No Demolition Required

      It can be directly pasted on the surface of existing ceramic tiles, cement mortar layers, and even old paint, eliminating the process of removing the old wall, generating no construction waste and not damaging the original structure.

• No Structural Reinforcement Required

      Old brick-concrete and wood-structured walls cannot bear the load of natural stone. Longtime PU Stone is only 1/4 the weight of real stone, so there is no need to add beams and columns or reinforce the foundation.

4.Application Case: Renovation of Jiaxing Staff Dormitory Building

   Project Background: A staff dormitory building built in 1998 in Jiaxing, a 6-story brick-concrete structure, with a large number of hollow and falling exterior wall mosaic tiles. The original plan was to remove the tiles and wet-paste natural slate, but the structural appraisal showed that the wall could not bear the additional load of more than 50kg per square meter. Moreover, residents strongly opposed relocation.

   Solution: Adopt Longtime Thin Stone Texture Panels (G003, 16mm thick), directly paste them on the old tile surface with structural adhesive, no demolition required, and no need for residents to move.

   Effect Comparison: After completion, the exterior facade of the entire building took on a new look. The community secretary said: "I never thought we could achieve a stone effect without moving or knocking down walls."

5.Brief Construction Process (Low Disturbance, Fast Speed)

• Base Inspection: Ensure the old wall is basically flat without large-area hollowing or falling off.
• Cleaning and Interface Treatment: Remove floating dust and apply interface agent.
• Board Cutting: Cut according to on-site dimensions with ordinary woodworking saws (outdoor operation, controllable noise).
• Pasting: Use polyurethane structural adhesive for dot or full coating, and press it onto the wall.
• Auxiliary Fixation: For large-size panels or outdoor areas with high wind pressure, stainless steel screws can be added.
• Joint Filling (Optional): Use flexible weather-resistant adhesive.

Comparison with Traditional Renovation: No demolition noise, no cement mixing dust, no long-term occupation of scaffolding.

6.Scope of Application

• Exterior facade renovation of old residential districts (brick-concrete, prefabricated slab structures).
• Exterior facade renovation of villas (especially when the original finish cannot be demolished).
• Renovation of historical protected buildings (with strict restrictions on load and damage to the original wall).
• Rapid exterior facade upgrading of hotels, homestays and commercial complexes.

7.Test Reports

8.Conclusion

   The essence of old building renovation is not to start over, but to give the building a new life without damaging the original structure or disturbing residents' lives. With its light weight, realism, speed and economy, Longtime® PU Stone provides a practical material solution for this demand.

   Haining Longtime Industry Co., Ltd. focuses on the R&D and manufacturing of PU stone, and is willing to provide full-process support from material selection to construction for your old renovation projects.

   For samples, quotes or technical consultation, please contact:

• Official Website: http://www.ltpvcfactory.com
• WhatsApp: +86 17757302351
• Email: [email protected]
• Sample Policy: Free samples and brochures are provided, freight collect.