Pre Engineered Building Solution

Pre Engineered Building Solution


PEBs are ideally suited for almost all types of medium to large size steel buildings as they provide many advantages over other types of buildings like corrosion resistance, lower cost etc.

We provide well designed PEBs which are based on PEB concept which are designed under supervision of technocrats with international structural standards keeping in view.

Pre-Engineered Steel Buildings use a combination of built-up sections, hot rolled sections, cold formed elements and profiled steel sheets which provide the basic steel frame work with a choice of single skin sheeting with added insulation or insulated sandwich panels for roofing and wall cladding or brick wall. The concept is designed to provide a complete building envelope system which is air tight, energy efficient, optimum in weight and cost and, above all, designed to fit user requirement like a well fitted glove.

Pre engineered buildings are the state of the art steel solution to developing an efficient and cost effective infrastructure. Pre engineered building is a steel structure built over a structural concept of primary member, Secondary member and the cover sheeting connected to each other. PEB’s can be fitted with different structural additions like trusses, mezzanine floors, fascias, canopies and crane systems as per user requirements.

These Pre-Engineered Steel Buildings can be fitted with different structural accessories including mezzanine floors, canopies, fascias, interior partitions etc. The building is made water-tight by use of special mastic beads, filler strips and trims. This is a very versatile building system and can be finished internally to serve any required function and accessorized externally to achieve attractive and distinctive architectural styles. It is most suitable for any low-rise building and offers numerous benefits over conventional buildings.

We have our own PEB manufacturing plant at Udaipur. Our services range from conceptualizing, to designing, to manufacturing and finally supply and erection. Rainbow PEB are custom designed to meet exact requirements using steel structure, beams and columns, profiled sheets, Z and C sections, steel decking sheets, insulated sandwich panel and other building accessories.

The most common and economical type of low-rise building is a building with ground floor and two intermediate floors plus roof. The roof of a low rise building may be flat or sloped. Intermediate floors of low rise buildings are made of mezzanine systems. Single storied houses for living take minimum time for construction and can be built in any type of geographic location like extreme cold hilly areas, high rain prone areas, plain land, extreme hot climatic zones etc.

Prefabricated building materials are used for buildings that are manufactured off site and shipped later to assemble at the final location. Prefabricated metal buildings use galvanized steel and galvalume as the chief materials for building. Galvalume is a form of steel coated with aluminum-zinc. This is to protect the building against corrosion, rust and fire. It also provides a sturdy and protective covering to the prefabricated building. Almost all the components of a metal building such as beams, frames, columns, walls and roofs, are made of steel. Most prefabricated military buildings use steel or aluminum frames. These materials are cheaper than regular brick and concrete buildings.

Components of PEB

There are basically eight major components in a pre-engineered residential building such as :

  • Main framing or vertical columns
  • Purlins, girts and eave struts
  • Sheeting and insulation or prefab panels
  • Brick & Cement Board Walls
  • Flooring
  • Paints and finishes
  • False Ceiling
  • Miscellaneous services
  • Comparison between conventional, Without Design PEB and LOTUS PEB:
  Particulars   Conventional building   Without design PEB    LOTUS PEB
Structure  I Beam Section Hot rolled  Fabricated I section 245 MPA  without load design  Fabricated section 345 MPA (HT) load design according to area.
Purlin  Hot rolled section Channel  Box pipe or Z section. Normal grade 245 MPA.  Z/C section. 345 Hi Tensile Grade &  Galvanized min. 120 GSM.
Sheet  Galvanized Iron sheet Color coated PPGI. Grade Max. 550 MPA. Color coated AZ 70.  PPGL sheet. Grade min. 550 MPA and Color coated AZ 150.
Welding  Normal electric rod use in    It.  Welding rods and normal mig wire.  Flux cored arc welding & Plasma cutting.
Hardware Item i.e. nut-bolts etc  MS normal grade nut-bolts  are used.  MS normal grade nut-bolts are used.  HT 8.8 Grade and galvanized coated material used.
Screws  ”J” Hooks are used  Normal Zinc coating. Life 2-5 years.  Proprietary Coating of Aluminum  / Zinc Alloy with Zinc Plating as base. Life 20 years.
Turbo ventilator  Normal Grade  Normal Grade  Imported, Used in high speed and best quality.
Paint  Primary – Red oxide  Secondary – Enamel Paint  Primary –  Red Oxide  Secondary – Enamel paint  Primary – Epoxy  Secondary – Epoxy
Design, Norms, Loads calculation process  Old type design  Without calculated loads and  norms of PEB  As per the variegated needs & preferences of   client we provide a customized solution for all  these service with calculation under PEB norms, standard & load.
Future expansion  More difficult to incorporate    expansions.  More difficult to incorporate expansions.  Easier to incorporate future expansions due  to modular nature of design

Advantages of Pre Engineered Buildings

Reduced construction time

Buildings are typically delivered in just a few weeks after approval of drawings. Foundation and anchor bolts are cast parallel with finished, ready for the site bolting. Our study shows that in India the use of PEB reduces total construction time of the project by at least 50%. This also allows faster occupancy and earlier realization of revenue.

Lower cost

Due to the systems approach, there is a significant saving in design, manufacturing and on site erection cost. The secondary members and cladding nest together reducing transportation cost.


 PEB permit future expansions & relocation through easy dismantling & reassembling.

Flexibility of expansion

Buildings can be easily expanded in length by adding additional bays. Also expansion in width and height is possible by pre designing for future expansion.

Large clear spans

Buildings can be supplied to around 80M clear spans.

Quality control

As buildings are manufactured completely in the factory under controlled conditions the quality is assured.

Low maintenance

Buildings are supplied with high quality paint systems for cladding and steel to suit ambient conditions at the site, which results in long durability and low maintenance coats.

Energy efficient roofing and wall systems

Buildings can be supplied with polyurethane insulated panels or fiberglass blankets insulation to achieve required “U” values.

Architectural versatility

Building can be supplied with various types of fascias, canopies, and curved eaves and are designed to receive pre cast concrete wall panels, curtain walls, block walls and other wall systems.

Aesthetically Superior

PEB buildings are aesthetically Superior to any other conventional sheds.

Single source responsibility

As the complete building package is supplied by a single vendor, compatibility of all the building components and accessories is assured. This is one of the major benefits of the pre engineered building systems.

Applications of Pre-Engineered Buildings

Due to its architectural versatility, flexibility and innovative technology almost every conceivable building use has been achieved using the pre-engineered building approach, that too with more cost, time efficiency.The applications of pre-engineered buildings range from small car parking sheds to 90 m (+) wide clear span aircraft hangars to low-rise multi storey buildings.

Some of the many applications of PEB are:

  • Industrial – Factories, Workshops, Warehouses, Cold stores, Car parking sheds
  • Heavy Industrial- Cement Plants, Steel rolling mills, Sugar mills, Ceramic factories
  • Institutional – Schools, Exhibition halls, Hospitals, Theaters, Auditoriums, Sports halls
  • Commercial – Showrooms, Distribution centers, Supermarkets, Restaurants, Offices, Service stations, Shopping centers, Gas stations
  • Recreational – Gymnasiums, Swimming pool enclosures, Indoor tennis courts
  • Aviation & Military – Aircraft hangers, Administration Buildings, Residential barracks, Support facilities
  • Agricultural – Poultry-Dairy Farms, Greenhouses, Grain storage, Animal confinement, Pump stations

Major Projects