This product was designed with the aim of reducing the cost of construction and increasing the quality of the building operation and eliminating the problems of supervising engineers in controlling the standards and violations of some building contractors by Mr. Engineer Seyed Mehdi Aziz Zavyi, and was produced and supplied by Navavaran Mandagh Mandagh Company. Standardization of construction materials and based on the national standard of Iran No. 11108, the production and consumption of blocks made of polystyrene grains in construction is subject to mandatory standard provisions.
On the other hand, according to the provisions of publication 543 and circular 12979/100 of the Vice President of Strategic Planning and Supervision to executive bodies, contractors and consulting engineers in the instructions for the design and implementation of beam and block ceilings to protect the polystyrene ceiling block and prevent direct impact of any Possible fire with blocks is necessary to protect under the roof with a suitable cover and the direct connection of the coating to the block with any geometric shape or with all kinds of grooves alone is not allowed in any way, and therefore the implementation of a layer of false ceiling with mechanical connection to beams or beams is nessessary.

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 the false ceiling economically reduces the cost of construction by 3-4% 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.