We know that Indonesia is a tropical country with quite high temperatures during the day. Therefore we need to consider several things when we choose building materials, especially at the top (roof). Therefore CV. Karya Jaya Utama provides a solution to this problem in the form of a cold roof product with the Rooftop brand. Rooftop is a modern cold roof substitute that can reduce heat twice as effectively as a roof in general. Some of the other advantages that Rooftop has are:

- Sturdy, strong and durable

- Rust resistant

- Silencer

- Resistant to chemicals

- Reduce heat twice as effective

- Can be costume size

- Available in white and blue

- Available types Doff and Semi Transparent