According to the technical approval issued by the Housing Research Center of the Ministry of Housing, Roads and Urban Development regarding the Zawya ceiling block, due to the provision of a suitable coating on the polystyrene layer in the design of this block, the direct application of plaster coating on this product is allowed.

Removing the requirement to implement false ceiling economically reduces the construction cost by 4-5% and also reduces the construction time by 40 days to two months.
For example, in a 1000-unit building project that is designed with joist and monolith roofs, the cost of constructing 40 units will be free by using angle roof blocks and saving 4% of the cost.
Considering that the design and execution system of about 85% of the country’s buildings is beam and block, therefore, this product can be viewed as a national capital.
On the other hand, the use of this product has superior advantages in terms of architecture and safety during the implementation and final use of the roof, and if it is used, the useful height of the floor is increased and it is suitable to connect the equipment to the roof with screws and plate rolls.