Waffle roof is different from other roof systems
The benefits of implementing a waffle roof in Rasht and Gilan
1. High resistance to humidity and northern climate
2. Reducing the cost of structures and materials
3. Increasing the useful opening without columns
4. The beauty of interior architecture
Why choose Yofel Engineering Technical Group for the implementation of waffle roofs in Rasht and Gilan?
Local experience and knowledge of climatic conditions
Yofel, with extensive operational experience in Gilan province, has a deep understanding of soil, humidity, concrete and native structures. The correct implementation of the waffle roof requires accurate calculation of loads and concrete strength, and Yofel's engineering team performs all these steps with international standards.
Use of first-class materials and molds
The molds used by Yofel Group are selected from the best type of reinforced fiberglass so that they can be used many times and are resistant to temperature changes in Gilan.
Detailed engineering supervision
Each project is controlled by Yofel's engineering supervision team from formwork to concreting. In addition to ensuring the safety of the structure, this issue causes continuous and uniform quality.
Full executive services
From the design of the map to the final implementation and even the joinery of the roof, all steps are carried out by the Yofel internal team, and the client does not need a second contractor.
Waffle roof implementation steps in Rasht and Gilan
Waffle roof execution requires high precision and complete equipment. The stages of work in the projects of Yufel Engineering Technical Group are:
1. Structural design and executive plan
First, the 3D model of the roof is designed with construction software such as ETABS and SAFE, so that the position of the molds, beams and rebars can be accurately determined.
2. Installing waffle molds
At this stage, the molds are arranged in a grid on the metal bases (scaffold). The distance between the templates and their alignment is very important.
3. Reinforcement
The upper and lower rebars are installed in their designated place based on the executive plan. In the long roofs of the opening, thermal rebars are also added.
4. Concreting
Concreting is done uniformly and continuously so as not to create cold joints. The quality of concrete used has a low permeability coefficient and high compressive strength.
5. Open templates
After the concrete has set (about 7 to 14 days), the molds are carefully opened and prepared for the next project.
Technical characteristics of waffle roof in projects in the north of the country
- Roof thickness: between 25 and 40 cm
- Form height: 18 to 30 cm
- Form spacing: 60x60 to 70x70 cm
- Concrete compressive strength: at least 350 kg/cm2
- Roof weight reduction: up to 30% compared to flat slab
Examples of projects implemented by Yofel Engineering Technical Group
- Apadana commercial complex project in Rasht (9 meter exposed waffle roof)
- Nasser Villa project in Lahijan (one-sided waffle roof with decorative coating)
- Niayesh Rasht parking lot project (double-sided waffle roof for 10x10 meter openings)
Key points of waffle roof design in wet areas
Economic analysis of waffle roof implementation in Gilan projects
Field analyzes of Yofel Group have shown that the implementation of the waffle roof creates about 15 to 25 percent economic savings compared to other systems. This saving includes reduction of concrete consumption, reduction of molding time and cost of manpower.
In the big commercial projects of Rasht, the total cost of each square meter of the waffle roof is calculated to be about 15 to 20% cheaper than the flat slab.
Standards and regulations used
In the design and implementation of the waffle roof, Yofel Engineering Technical Group follows the following international standards:
- Iranian Concrete Code (ABA)
- ACI 318 (American Concrete Design Code)
- Structural Code, Section 9 of National Building Regulations
Free consultation and visit services
Yofel, as a specialist provider of waffle roofs in Rasht and Gilan, provides technical consultation and initial project visit for free in order to suggest the best type of roof based on the dimensions and use of the structure.
Summary
Waffle roof implementation in Rasht and Gilan is not only a technical and economic choice, but also a sign of progress in the construction industry in the north of the country. Waffle system is one of the most innovative methods of implementing the roof in today's projects by reducing the consumption of materials, increasing the strength of the structure and the appearance.
Yofel Engineering Technical Group is ready to implement all kinds of waffle roof projects throughout Gilan and Mazandaran, using modern knowledge and modern equipment.
