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Kakeru Koumuten Co., Ltd. Roof Top Urethane Waterproofing Costs
At Kakeru Koumuten, we are grateful to receive numerous inquiries about waterproofing work every month! If you have any troubles with your balcony or rooftop, please feel free to consult with Kakeru Koumuten!
First of all, waterproofing work is the construction to protect buildings and structures from rain and water. It is often applied to concrete buildings! Additionally, there are various methods for waterproofing, but in this article, we would like to introduce the construction plan and costs for urethane waterproofing!
Kakeru Koumuten’s Rooftop Waterproofing Plan
・Urethane Waterproofing Ventilation Buffer Method
| Unit Price per Square Meter | ¥8,000/sqm～ (varies by square meter count) |
|---|---|
| Applicable Base | Concrete・Existing Waterproof Layer |
| Durability | |
| Cost | |
| Recommendation Level |
The urethane ventilation plan is a construction method called ventilation buffer method, which is suitable for waterproofing work on rooftops. In this plan, an insulation sheet is applied to the concrete or existing waterproof layer before the urethane waterproofing is carried out.
The ventilation buffer method prevents the most common problem of swelling associated with urethane waterproofing.
Unlike the adhesion method, applying an insulation sheet allows moisture and air rising from the building to escape to the outside. With the adhesion method, there is no escape route for the moisture and air rising from the building, making swelling more likely to occur.
Check out our web catalog here!
Kakeru Koumuten Co., Ltd. Recommendation: ★★★★
The urethane ventilation plan from Kakeru Koumuten Co., Ltd. is a relatively highly recommended plan!
It has the ability to let moisture trapped inside escape, preventing swelling after construction and providing long-term waterproofing effectiveness.
Additionally, while the cost is somewhat higher compared to others, it is relatively affordable given its high durability, making it a beneficial plan in terms of both cost and durability in the long run!
・Urethane Waterproofing Adhesion Method
| Unit Price per Square Meter | ㎡/5,000 yen～ (varies by square meter) |
|---|---|
| Applicable Base | Concrete・Existing Waterproof Layer |
| Durability | |
| Cost | |
| Recommendation Level |
The urethane adhesion plan is a construction method known as the adhesion method, which is suitable for enhancing waterproofing effectiveness. In this plan, urethane is adhered to concrete and existing waterproof layers, achieving high waterproof performance. Urethane has excellent adhesion properties, ensuring that it firmly adheres to the waterproof layer on the roof and prevents leaks and infiltration. It offers a mid-range cost and durability, making it a well-balanced plan!
This construction method requires the substrate to be sufficiently dried, so it is recommended for relatively small areas (such as balconies).
Check out our web catalog here!
Kakeru Koumuten’s Recommendation Level: ★★★
The urethane adhesion plan is commonly chosen due to its average cost and durability!
It features high waterproof performance, which is essential for waterproofing work, and is relatively inexpensive! However, if sufficient drying has not been achieved, there is a risk of blisters occurring after construction, so caution is necessary!
・Waterproof Top Coat Plan
| Unit Price per Square Meter | ㎡/2000 yen～ (Varies by square meter count) |
|---|---|
| Applicable Substrate | FRP・Rubber Sheet・PVC Sheet・Polyurethane Waterproofing |
| Durability | |
| Cost | |
| Recommendation Level |
The waterproof topcoat plan is a plan designed to reinforce the existing waterproof layer. In this plan, a special topcoat is applied to the existing waterproof layer to protect it. The waterproof topcoat is relatively low-cost and protects the existing waterproof layer. However, since it is meant for protection, it cannot be applied if there are leaks or if the layer is severely deteriorated.
There are dedicated topcoats for PVC sheets, rubber sheet waterproofing, FRP waterproofing, and urethane waterproofing, each with different methods!
Click here for the web catalog!
Kakeru Koumuten’s Recommendation Level: ★★★
The topcoat plan for waterproofing is popular due to its quick construction time and low cost. We recommend this plan for those who are concerned about expenses.
However, because it is low-cost, its durability is not very high, so we recommend regular maintenance!
Since it is primarily for the protection of the waterproof layer, it cannot be applied if there is severe deterioration or if leaks are occurring!
・Long Sheet Waterproofing
| Unit Price per Square Meter | ㎡/6,000 yen～ (varies by square meter count) |
|---|---|
| Applicable Base | Concrete, Tiles, etc. |
| Durability | |
| Cost | |
| Recommendation Level |
Long sheet waterproofing is used for the common corridors and stairs of condominiums and apartments!
It is suitable for waterproofing corridors and stairs where people walk, but it is not suitable for areas like rooftops that are heavily exposed to UV rays and rain.
With various designs available, installing it on steel stairs and common corridors greatly enhances the aesthetic appeal!
Since the sealing at the edges of the long sheet can tear and cause leaks, regular inspections and maintenance are necessary!
・FRP Waterproofing (1PLY Method)
| Unit Price per Square Meter | ㎡/4,000 yen～ (depending on the area) |
|---|---|
| Applicable Base | FRP waterproof layer, wooden base, metal base, etc. |
| Durability | |
| Cost | |
| Recommendation Level |
FRP waterproofing involves creating a waterproof layer by solidifying glass mat with epoxy resin on the existing substrate!
It is not suitable for large areas such as rooftops and is often used as a waterproof material for residential balconies.
The 1PLY method involves applying one layer of glass mat on the existing FRP or substrate and solidifying it with epoxy resin.
2PLY involves applying two layers of glass mat.
A major advantage is that it can be constructed relatively inexpensively due to the short construction period!
・PVC Sheet Waterproofing
| Unit Price per Square Meter | ㎡/6,000 yen～ (varies by square meter count) |
|---|---|
| Applicable Base | Concrete, PVC sheet, wooden base, etc. |
| Durability | |
| Cost | |
| Recommendation Level |
This is a waterproofing construction that is widely used for large areas such as the rooftops of condominiums!
The cost varies depending on the method used.
Since there is no need to wait for drying, a shorter construction period is a significant advantage, and if the goal is not to improve aesthetics, the lack of maintenance can also be a major benefit.
Voices of Customers Who Have Had Waterproofing Work Done
■O-san, Aoba-ku, Yokohama
I noticed that the coating on my rooftop balcony was peeling, so I consulted about waterproofing work. Since I was already considering waterproofing, I reviewed the estimate, and the cost was cheaper compared to others, and the details of the estimate were solid, allowing me to request the work with confidence.
The construction period was also faster than I expected, which was very helpful. Thank you!
■T-san, Asahi-ku, Yokohama
Because the moss and what seemed to be mold on my balcony started to become noticeable, I requested waterproofing work. Since I also requested exterior wall painting, they were able to reduce the cost compared to usual, which was very helpful. Of course, before the work, but also during and after the construction, they were very attentive and I felt reassured to leave it to them.
After the work was completed, I received photos of the construction process and a warranty, and I thought I would like to ask Kakeru Koumuten again if anything comes up!
Service Areas
Tokyo
Akishima City/Akiruno City/Adachi Ward/Arakawa Ward/Itabashi Ward/Inagi City/Edogawa Ward/Oume City/Edogawa Ward/Oume City/Ota Ward/Katsushika Ward/Kita Ward/Kiyose City/Kunitachi City/Koto Ward/Koganei City/Kokubunji City/Kodaira City/Komae City/Shinagawa Ward/Shibuya Ward/Shinjuku Ward/Suginami Ward/Sumida Ward/Setagaya Ward/Taito Ward/Tachikawa City/Tama City/Chuo Ward/Chofu City/Chiyoda Ward/Toshima Ward/Nakano Ward/Ookutama/Nishi-Tokyo City/Nerima Ward/Hachioji City/Hamura City/Higashi-Kurume City/Higashimurayama City/Higashiyamato City/Hino City/Fuchu City/Fussa City/Bunkyo Ward/Machida City/Mitaka City/Minato Ward/Musashimurayama City/Musashino City/Meguro Ward
Kanagawa Prefecture
Aikou-gun Aikawa Town/Ashigarakami-gun Oi Town/Ashigarakami-gun Kaisei Town/Ashigarakami-gun Nakai Town/Ashigarakami-gun Matsuda Town/Ashigarakami-gun Yamato Town/Ashigarashimo-gun Hakone Town/Ashigarashimo-gun Manazuru Town/Ashigarashimo-gun Yugawara Town/Isehara City/Odawara City/Kamakura City/Kawasaki City/Aso Ward/Sai Ward/Takatsu Ward/Tama Ward/Nakahara Ward/Miyamae Ward/Kozu-gun Samukawa Town/Zushi City/Chigasaki City/Naka-gun Oiso Town/Naka-gun Ninomiya Town/Hadano City/Hiratsuka City/Fujisawa City/Miura-gun Hayama Town/Miura City/Nanbu City/Yokosuka City/Yokohama City/Aoba Ward/Asahi Ward/Izumi Ward/Isogo Ward/Kanagawa Ward/Kanagawa Ward/Kanazawa Ward/Minamiku Ward/Kohoku Ward/Sakae Ward/Seya Ward/Tsuzuki Ward/Tsurumi Ward/Totsuka Ward/Naka Ward/Nishi Ward/Hodogaya Ward/Yokohama City Midori Ward/Yokohama City Minami Ward/Sagamihara City/Sagamihara City Midori Ward/Sagamihara City Minami Ward/Sagamihara City Chuo Ward/EBINA City/Atsugi City
Leave Waterproofing Work to Kakeru Koumuten!
Estimates and inspections are, of course, free! If you have any concerns about roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten Co., Ltd. has become a strong remodeling company specializing in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting completely in-house.
When it comes to exterior renovation work, we are confident that we won’t be outdone by other companies in terms of “cost, quality, and efficiency”!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also offer comprehensive construction guarantees and aftercare maintenance, and we have received positive feedback for our cost performance and appropriate proposals that align with our customers’ future life plans!
Helpful information about exterior renovations can be found here!
We are committed to ensuring that you feel “I’m glad I asked!” by taking your requests seriously.
We also have information on roofing costs and pricing plans for the roof overlay (cover method), so please take a look if you’re interested!
We look forward to your inquiries. Thank you very much.
・Isogo-ku, Yokohama | Urethane Waterproofing Work | Ventilation Method | We performed waterproofing work on the garage!
・Takatsu-ku, Kawasaki | Waterproofing Work | We performed waterproofing work with a top coat!
・Aoba-ku, Yokohama | Floor Work | We performed floor concrete and exterior construction work!
・Summary of Popular Exterior Wall Paint Colors! We will introduce recommended color combinations!
・For those who want to try painting the roof and exterior walls DIY! Scaffolding installation only! Roof and exterior wall painting DIY plan!
・Latest! Kanagawa Prefecture Subsidies! We will introduce subsidies and reduction systems!
・What is waterproofing work? We will introduce the merits and construction methods of waterproofing work!
・What is asphalt waterproofing? We will introduce the merits and demerits!
・What is urethane waterproofing? What is the cost range? We will also introduce the advantages and disadvantages!
・What is FRP waterproofing? What is the cost range? We will introduce the benefits and drawbacks!
・What is sheet waterproofing? What places are recommended? We will introduce recommended sheets!
LINE consultations are also very welcome◎
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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!
