目次
What is Galvalume copper sheet?
Advantages
The advantages of Galvalume steel roofs are:
・Lightweight and highly earthquake-resistant
・Resistant to rust
・Excellent waterproofing
・Ideal for roof overlay (cover method)
・Can accommodate complex shapes
As such, Galvalume steel is a highly convenient roofing material that can be recommended to many people.
Its durability relative to the price is also one of its popular features!
Disadvantages
The disadvantages of Galvalume steel roofs are:
・Prone to scratches
・Slightly lower sound insulation
・Lower thermal insulation compared to tiles and slate
However, when viewed as a whole, the advantages outweigh the disadvantages, so if you are looking for a balanced roofing material, please consider it as one of your options.
The low sound insulation and heat insulation can be improved by adding insulation or soundproofing materials as options to the roofing material.
Typical Galvalume Steel Roofing Materials
Hiranbee 220
This is a Galvalume steel roofing material from Inagaki Shouji, which comes with a 15-year paint warranty and a 25-year hole warranty from the manufacturer!
It is a very lightweight roofing material suitable for roof overlay (cover method)!
Its thermal insulation is lower compared to slate and tiles, so if you are doing a roof replacement, we recommend adding insulation as an option.
Also, since rain sounds can resonate, if there is a lower roof, we also recommend adding soundproofing materials as an option.
The above are the options for Hiranbee.
Dannetsu Top
This is a Galvalume steel roofing material from Sekino Kousan! It comes with a 15-year paint warranty and a 25-year hole warranty, the same warranty period as Hiranbee!
While it looks very similar to Hiranbee, Dannetsu Top comes with polyethylene foam insulation as a standard feature, not as an option!
Stanbee
This is a roofing material made of Galvalume steel from Inagaki Shouji! Like Hiranbi, it comes with a 15-year paint film warranty and a 25-year hole warranty!
While Hiranbi and Dan Netsu Top are horizontal roofing materials, Stanbi is a vertical roofing material!
Vertical roofing materials can also accommodate low-slope roofs and are mainly used for sloped roofing materials!
What is SGL Copper Plate?
SGL copper plate is a copper plate that enhances rust prevention by adding magnesium to the plating of Galvalume copper plate, offering approximately three times the corrosion resistance of Galvalume copper plate.
It is also referred to as next-generation Galvalume copper plate.
Due to its higher durability and resistance to rust compared to Galvalume copper plate, it has become a popular material in recent years.
Advantages
The advantage of SGL copper plate is that it adds high corrosion resistance to the inherent benefits of Galvalume copper plate!
In coastal areas or regions with high salt damage, Galvalume copper plate is susceptible to rust, but SGL copper plate has been proven to have high corrosion resistance that is less affected by sea breezes.
While Galvalume steel plates are covered by manufacturer warranties for areas more than 5 km away from the coast, SGL steel plates are covered up to 500 m, significantly reducing the distance, making coastal areas also eligible for warranty. Therefore, if you live in a coastal area, consider SGL copper plate!
Additionally, unlike Galvalume copper plate, the manufacturer warranty period is longer. While Galvalume copper plate has a warranty of ’10 years for holes’, the warranty period for SGL copper plate is ’25 years for holes’, which is more than double the coverage.
Disadvantages
Next, the disadvantages of SGL copper plate are, as mentioned above, almost the same as the disadvantages of Galvalume copper plate.
However, if I had to point out one thing, it would be that the cost is slightly higher.
However, in the long run, it can be said that even if the cost is high, it is not necessarily a bad thing as it extends the lifespan of the roof.
Recommended Roofing Materials from Our Company
We would like to introduce SGL copper plate roofing materials that Kakeru Koumuten Co., Ltd. recommends!
Super Galtect
The Super Galtect is a metal sheet that is thoroughly insulated from edge to edge, integrating steel plates and insulation materials.
It is made of SGL steel, which is also resistant to rust.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and our company’s construction results show that the Super Galtect from Aijii Industry is the most popular and has garnered significant attention!
When installed, insulation is applied even to the parts where the roofing materials overlap, and the surface is coated with a high heat-reflective paint, allowing for a cool summer and a warm winter.
Additionally, it has soundproofing properties, which reduce the sound of rain.
Moreover, it is lighter compared to other roofing materials, which minimizes shaking during an earthquake, providing earthquake resistance.
The Super Galtect comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation.
Our company also provides a 10-year construction warranty!
Colors
■ Shade Black
■ Shade Brown
■ Shade Blue
■ Shade Moss Green
■ Shade Charcoal
■New Color Shade Wine Red
You can check the construction results of Super Galtect here☜☜
Yoko Warm Roof αS
There are several types of Yoko Warm Roof, but
among them, Yoko Warm Roof αS is
a high-performance metal insulated roof made by integrally molding metal steel plates (high-durability painted Galvalume steel plates), insulation material (rigid polyurethane foam), and aluminum laminated backing material.
It is the highest level of roofing material in the Yoko Warm Roof series!
It is lightweight and strong against earthquakes, demonstrating excellent insulation performance throughout the year, and achieving long maintenance due to high durability.
Additionally, it comes with a manufacturer warranty of 15 years for the coating, 20 years for red rust, and 25 years for perforation.
Color
You can check the construction results of the Yokonaru Roof here☜☜
Roof Maintenance
We provide aftercare maintenance for customers who request construction from Kakeru Koumuten Co., Ltd.! If you have any concerns after the construction, please feel free to consult with us!
Maintenance Methods
Roofs do not last forever without deterioration. They degrade due to the effects of rain and ultraviolet rays. If deterioration is left unattended, it can lead to leaks, affecting not just the roof but also the exterior walls!
To prevent this, regular maintenance is necessary.
When performing roof maintenance, there may be cases where access to the roof is not possible depending on the building.
In such cases, our company operates drones to check the condition of the roof from the air. This allows us to communicate the roof’s condition while confirming it together with the customer!
We recommend maintenance before deterioration progresses.
Conclusion
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exterior works, please consult Kakeru Koumuten Co., Ltd.!
We carry out everything from temporary scaffolding construction to roof work and exterior painting completely in-house. We are confident that we will not be outdone in terms of cost, quality, and efficiency compared to other companies!
We welcome competitive estimates with confidence!
We want you to feel, “I’m glad I asked!” We take every request seriously to ensure your satisfaction.
We also have information on roof construction costs and pricing plans for the roof overlay (cover method), so please take a look if you are interested!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・Roof Repairs | We have implemented measures against leaks through ridge cap replacement and eaves gutter replacement!
・Exterior Painting & Sealing Work Price List
・DIY Painting Plan | For those who want to try painting the roof and exterior walls themselves! We will only set up the scaffolding!
・What are the average costs for roof remodeling? Types of work and how to choose a contractor
・How much does exterior painting cost? Are there tips to reduce costs?
・Latest! Subsidies and Grants in Yokohama, Kanagawa Prefecture | About Reduction Systems
・What are the average costs for rain gutter repair and cleaning? Tips on timing, fire insurance, and choosing a contractor!!
・Renovation Store in Yokohama, Kanagawa Prefecture | What is roof overlay (roof cover method)?
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AAA is a young company with an average age in the early 20s, but our technology is second to none.
One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!
We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!
