ハマキャスト List of Products and Services

The "HP-LCC Waterproofing Method" is fundamentally a three-layer structure constructed using machine spraying. The first layer is a rubber-modified asphalt sheet (self-adhesive type), the second layer is a spray polyurethane waterproofing material (1.5 kg/m²), or a high-performance polyurethane waterproofing material (2.6 kg/m²), and the third layer is a high-durability heat-insulating top coat (1.0 kg/m²). These materials are composed of almost solvent-free types. 【Features】 ■ The seamless "composite waterproof layer" of modified asphalt sheet and polyurethane coating achieves high waterproofing and water tightness. ■ Reduces the number of renovation works due to extended lifespan, significantly lowering LCC (lifecycle cost of the building). ■ Combines the "composite waterproofing" of the sheet and polyurethane with a high-durability heat-insulating top coat to protect the waterproof layer from solar heat and ultraviolet rays for an extended period. ■ There are no strong odors or noise from fixed pin installation during construction, minimizing the impact on residents and the surrounding environment. *For more details, please refer to the PDF materials or feel free to contact us.

[Renovation Work] We introduce an example of the installation of Hamacast's 20-year warranty roof waterproofing "HP-LCC" on the rooftops of a certain food company's factory and exhibition buildings, along with the installation of Daigas Energy's solar power generation system "D-Solar." [Customer's Issues and Requests] ◇ From the perspective of SDGs and decarbonization, we want to introduce a solar power generation system for the electricity supply used in the factory. ◇ We were looking for a long-lasting waterproofing solution that would require fewer renovations after installation to accommodate the installation of solar power panels. ◇ We decided to proceed with the introduction after receiving a proposal for a collaborative service from Daigas Energy and Hamacast. [HC Selection Points] ◆ Concerns about roof waterproofing renovation work due to the installation of the solar power generation system are reduced. ◆ The "HP-LCC waterproofing method" is a long-lasting product with a 50-year lifespan (20-year warranty), allowing for a reduction in maintenance cycles. ◆ The combination of composite coating waterproofing and a heat-reflective top coat (independently developed) prevents deterioration of the waterproof layer over a long period. *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce an example of the installation of "HP-LCC," a roof prevention system with a 20-year warranty, on a building with exposed asphalt waterproofing on the rooftop. 【Project】Roses Corp. Senri Building B Rooftop Waterproofing Renovation ◇Construction Date: August 2024 ◇Construction Area: 1749.9 m² ◇Base: Exposed Asphalt Waterproofing 【Selection Points】 ◆ It is a long-lasting product with a 20-year warranty (expected lifespan of 50 years), which can reduce maintenance and management costs. ◆ The combination of composite coating waterproofing and a heat-reflective topcoat (independently developed) prevents deterioration of the waterproof layer over a long period. ◆ The materials used have excellent crack-following performance, are of the inorganic solvent type, which means they have less odor and are environmentally friendly.

We propose a slate roof renovation method that combines a special insulation reinforcement layer, ultra-fast curing polyurethane, and a heat-insulating topcoat to create "waterproofing & reinforcement effects" and "heat insulation & thermal insulation effects." This system merges the waterproofing expertise we have cultivated over many years with advanced robotic construction technology. It protects valuable equipment and stored items from leaks and roof damage while contributing to the reduction of utility costs. 【Features】 ■ Waterproof performance that protects equipment and stored items ■ Extended lifespan through reinforcement of roofing materials ■ Heat insulation that reduces indoor temperature rise ■ Soundproofing that reduces rain noise and other disturbances *For more details, please download the PDF or feel free to contact us.