Abstract, title and references comments:

The third line includes the reference (1), However, the abstract should not have references.

There are many key references missed such as:

Farah, R., 2014. Building Information Modeling (BIM) Implementation in Saudi Arabia: Potentials and Barriers, KSA: The University of Salford School of the Built Environment; MSc dissertation.

Ahmed, S., EMAM, H. & FARRELL, P., 2014. Barriers to BIM/4D implementation in Qatar. Abu Dhabi, UAE, In The 1st International Conference of CIB Middle East & North Africa Conference, pp. 533-547.

Alhumayn, s., CHINYIO, E. & NDEKUGRI, I., 2017. THE BARRIERS AND STRATEGIES OF IMPLEMENTING BIM IN SAUDI ARABIA. WIT Transactions on The Built Environment, Volume 169, pp. 55-67.

Bernstein, P. & Pittman, J., 2005. Barriers to the Adoption of Building Information Modeling in the Building Industry, s.l.: Autodesk Building Solutions Whitepaper

Chan, C., 2014. Barriers to implementing BIM in the construction industry from the designers’ perspective: a Hong Kong experience. Journal of System and Management Sciences, 2(4), pp. 24-40.

Kekana, T., Aigbavboa, C. & Thwala, W., 2014. Building Information Modelling (BIM): Barriers in Adoption and Implementation Strategies in the South Africa Construction Industry. s.l., In International Conference on Emerging Trends in Computer and Image Processing (ICETCIP'2014) Dec (pp. 15-16).

Kiani, I., Sadeghifam, A., Ghomi, S. & Marsono, A., 2015. Barriers to implementation of Building Information Modeling in scheduling and planning phase in Iran. Australian Journal of Basic and Applied Sciences, 9(5), pp. 91-97.

Matarneh, R. & Hamed, S., 2017. Barriers to the Adoption of Building Information Modeling in the Jordanian Building Industry. Open Journal of Civil Engineering, 3(7), p. 325.

Introduction/background comments:

The paper did not mention any previous studies deal with the topic of paper (Barriers to Implement Building Information Modeling in Public Projects). Therefore, the author should critically discuss the literature.

on the introduction section in the fourth paragraph at last of the fifth line (from, therefore, a slight improvement to the end of the paragraph) repeated what author mentioned in the first passage of the introduction section.

Method Comments:

The author repeated the eleven, twelve, thirteen and fourteen lines in 15,16,17,18 lines.

However, the author observes a case study, he did not mention any information about it in the method section.

The author should provide the sampling size of the questionnaire and respondents' information.

Results Comments:

The data presented in an inappropriate way. Table 1 can be better if the author added a column argued the ranking of the barriers. It would be better if presented the respondents' information with figures.

The author should discuss and analyze the total final barriers from the questionnaire and the case study.

on the second passage of the results and discussion section at the fourth line the words a good number should replace to percent % of the respondents.

Discussion and Conclusions:

There isn't any result discussion, therefore the author should discuss the result and compare them with what the literature claimed.

The conclusions include sentences which prefer to move in other section such as "These findings were mainly similar to studies were develop in the area [9–13]" where it should move to the discussion section.

Moreover, the sentence "Total of 195 surveys were included in this study out of 230" should move to the method section.

The nine line includes the reference (9-13), However, the conclusions should not have references.

Very poor conclusions. the author should summarize his work in the conclusion section (the aim of the study, methodology, key findings, implications, the research contributions, limitation and recommendation for the future research).