| Recommended method |
Major materials used |
Where used |
Use |
| VD method |
Combined waterproof |
Improved asphalt sheet +
rapid hardening and high-durability type urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| VS method |
Combined waterproof |
Improved asphalt sheet
+
rapid hardening and high-durability type urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| VA method |
Combined waterproof |
Improved asphalt sheet
+
rapid hardening and high-durability type urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| Environmental DD system SP series |
Combined waterproof |
Improved asphalt sheet
+
rapid hardening-type urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| Environmental DD system Otas-Eco series |
Combined waterproof |
Improved asphalt sheet
+
water-hardening urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| Environmental DD system Otas-Eco series |
|
Water-hardening urethane |
Veranda and eaves |
Walking |
| DD waterproofing method |
Combined waterproof |
Improved asphalt sheet
+
urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| DD-SP method |
Combined waterproof |
Improved asphalt sheet
+
rapid hardening-type urethane |
Rooftop
Roof balcony |
Not supporting walking to supporting walking |
| DD-Lans Lock method |
Combined waterproof |
Improved asphalt sheet
+
rapid hardening-type urethane |
Rooftop
Roof balcony |
Minimal walking (maintenance level) |
| Quick spray method |
|
Rapid hardening-type urethane |
|
Not supporting walking to supporting walking |
| DD-Powerproof method |
Combined waterproof |
Urethane
+
FRP |
Rooftop
Roof balcony |
Walking |
| Powerex method |
Combined waterproof |
Slope urethane
+
FRP etc. |
Rooftop parking lot |
Parking lot |
| Green place method |
Combined waterproof |
Urethane
+
FRP etc. |
Rooftop planting |
Rooftop planting |
| Urethane coating waterproofing |
|
Urethane |
Roof balcony
Veranda and eaves |
Not supporting walking to supporting walking |