Material technology in the world of construction never stops to grow, including in Indonesia. We, PT. Bitutek, are ready to take part in promoting the construction world in Indonesia and Asia, under the name of CTI brands, which stands for “Construction Toward Innovation.”

Established in January 2012, we are the pioneers in asphalt roof manufacturer in Indonesia under the name of PT. Bitutek. With the aim of developing the company in a better direction, we decide to collaborate with CT Korea on March 31st, 2014.

CT Korea is well known as one of the leading companies that distribute building materials in Korea. They are known through their products, specifically asphalt tiles from SpecificTeed USA, clay tiles from Terreal France, clay bricks from Austral Bricks, Stucco from Parex USA, and insulation from Saint-Gobain Korea.

We believe that the synergy between CTI manufacturing and  Korea’s CTK distribution network can make a major contribution to the building materials industry, both local and international. As a pioneer of asphalt shingle manufacturer in Indonesia, we have many advantages that you shall consider,

  • Our very own factory produces only from high-quality material and able to produce custom granule color as per your demand. *terms and conditions apply
  • We produce approximately 5000sqm asphalt shingles per day and deliver it directly to the user. We are way faster than any distributor does.
  • 100% waterproof.
  • Lighter than conventional roof (ex. Clay, ceramics, concrete roof) yet reliable during heavy rain, strong wind, even the unexpected earthquake.
  • Easy to install.
  • 30 years of product warranty since the application date.

Ceramic Granule

CTI produces asphalt shingles with fine colored granules supllied from GROUPE CARLAC, having a parent company in France. High quality granules provide the excellent protection for the asphalt compounds from UV attacks which is very essential for long-term performance of the product. CTI maintains a wide color range of granules and has capability of offering a broad range of color selections and customized colors.

CTI produces the asphalt compound using the optimal amound of elastomers which provide softness in the cold weather and toughness in the hot weather. CTI also uses a high standard of homogenized compounds to achieve long-term durability.

CTI produces self-adhesive shingles using high performance adhesive asphalt on the back side of the shingle covered with protective film. The advantage of self-adhesive shingles is fast and easy installation as wind blow-off stability from the beginning of installation.


We have an integrated agent system all around Indonesia. Through the system, we could reach any type and specific project locations with years of delivery experience between agents and cargo around the island.We recommend you to order directly through website or our official agent to avoid any fraud on behalf of company’s name. If you find something suspicious; in the method of communication, bank account, e-mail address, etc, please confirm to our marketing office.

 +62 21 2906 0202 |


Our projects have spread to all regions of Indonesia and have entered overseas regions, one of which is Korea. Several projects that use CTI products as roof coverings are Government Buildings & Public Facilities, Housing & Property, Tourism & Entertainment, and Private Homes & Villas. You can view the project in the Gallery panel of this Website.

Call us at +62 2906-0202 or if you have further questions.