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-Reducing the purchase price of joists
-Ease of implementation, displacement, control of thermal reinforcement and implementation of hidden shenage compared to common pre-tensioned joists due to the truss system and the presence of zigzag
-If double joists are converted to single, reduction The dead load of the roof
-Possibility of placing joists in the direction of lengthening and lightening the cross-section of the beam and reducing its overhang
-Possibility of implementation up to 12 meters and removing the middle columns of the building
-Reducing piling under the roof
r\n-Using high-strength concrete and high-strength rebars with a tensile strength of 18000kg/cm2
-Resistant to cracking due to existing compressive stress and as a result, lack of moisture penetration and ultimately a longer life of the structure. r\n-Approved by Iran's Standards and Industrial Research Organization and with standard certificate Publication 250 of the ABA Addendum and Publication 543 and Publication 82 of the Country Management and Planning Organization) and foreign regulations (American Concrete Regulations ACI-318, PCL, etc.)
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