Roof Monitor
Natural Cooling & Free Sunlight for Your Factory. Say goodbye to heat and high electricity bills! Our Roof Monitors are designed to let hot air escape and bring in natural sunlight, making your workspace better for everyone. Fresh Air Always: Naturally removes heat, smoke, and dust from inside. Save Electricity: Reduces the need for artificial lights and big fans during the day. Leak-Proof Design: Built to ensure no rainwater enters your building. Strong & Durable: Made with high-quality steel to match your PEB structure. Expert Finish: Custom-built by the top steel structure company in Bangladesh.
Product Description
Roof Monitor for Industrial Ventilation PEB Steel Design | Bangladesh
A roof monitor is a raised section of a building's roof peak with openings on the sides. It acts as a natural exhaust system by allowing trapped hot air to escape while bringing in natural light. City Steel makes the best roof monitor systems for industrial sheds, ensuring your factory floor stays cool even during the peak of summer in Bangladesh.
By using this system, you solve the problem of stuffy, high-heat work environments without the high cost of mechanical cooling. You get a structure that carries heavy wind loads, keeps birds out with galvanized mesh, and uses specialized flashing to prevent rainwater from entering. Every unit is welded and pre-painted at our Savar workshop before being bolted to your roof.
This PEB roof monitor fits new pre-engineered buildings and can also be added to existing factory roofs to improve airflow.
Why Choose City Steel Roof Monitor?
Lowers Temperature Naturally with the "Stack Effect"
Hot air is lighter than cold air, so it rises to the highest point of your warehouse. A roof monitor provides a dedicated exit for this heat. This "stack effect" keeps the air moving constantly. You get a cooler workspace for your workers without paying for industrial exhaust fan electricity bills.
Reduces Electricity Costs with Natural Daylighting
By installing translucent polycarbonate sheets on the vertical sides of the monitor, you bring sunlight into the center of the building. This removes dark areas on the production floor. You can turn off many electric lights during the day, which lowers your monthly utility costs.
Leak-Proof Design for Bangladesh Monsoons
Rainwater leakage is a common fear with roof openings. We use wide weather-flashing and deep overhangs on the louver sections. Every joint is sealed with industrial-grade EPDM gaskets and sealants. This ensures your machinery and inventory stay dry even during heavy rain and storms.
Built-Up Steel Frames for Wind Resistance
We do not use flimsy materials. Our monitors are built with heavy-duty MS (mild steel) built-up sections or C-purlins. This framing is designed to match the structural strength of your main building rafters, ensuring it stays secure during high-velocity winds.
Bird and Pest Protection
Open vents can allow birds to nest inside your factory. We install 12mm to 18mm galvanized wire mesh on all monitor openings. This keeps pests out while maintaining 100% of the ventilation area required for your project.
Roof Monitor Technical Specifications
| Specification | Details |
| Product Type | Structural Steel Ridge Ventilation System |
| Frame Material | ASTM A36 / MS Built-up Steel |
| Cladding Material | 0.47mm – 0.50mm Galvalume (Al-Zinc) Sheets |
| Yield Strength | 245 MPa to 345 MPa |
| Opening Type | Fixed Louvers / Bird Mesh / Translucent Panels |
| Standard | AISC, MBMA, and BSTI |
| Coating / Finish | Red Oxide Primer / Epoxy Paint / Galvalume |
| Fabrication | CNC-cut, welded built-up frames |
| Weight | Calculated based on span and wind load |
| Dimensions | Made to order (Width: 1.5m to 5m) |
The roof monitor price in Bangladesh depends on the length of the building, the width of the monitor opening, and the current market rate of MS steel. We calculate the size based on the "Air Changes Per Hour" (ACPH) your specific industry requires.
Is This Roof Monitor Right for Your Project?
This ventilation system is the right choice for large industrial buildings where internal heat is a problem. If you own a garment factory with 500+ workers or a steel melting shop, a standard ridge vent is not enough. You need a roof monitor to move large volumes of air.
It is ideal for factory owners and contractors in Gazipur, Savar, Narayanganj, and Chittagong. We recommend this for any building wider than 60 feet. For very small sheds, we may suggest circular turbo ventilators instead. However, for long-term durability and maximum light, the monitor is the better investment for PEB structures.
How City Steel Fabricates, Delivers & Erects Your Roof Monitor
The process begins at our Savar factory. We use your structural drawings to fabricate the steel frames. Each piece is cleaned and coated with a protective primer to prevent rust.
Once the frames are ready, we deliver them to your project site using our own transport. Our trained erection crews then lift the frames to the roof ridge. We use high-strength bolts to secure the monitor to your existing rafters. Finally, we install the cladding and flashing, ensuring every screw is capped with a leak-proof washer. This professional installation prevents the "ridge leaking" problems often seen with local, low-quality fabricators.
Why Order Your Roof Monitor from City Steel Corporation?
City Steel Corporation has built steel structures across Bangladesh since 2015, with 150+ completed projects for clients like Singer Bangladesh, Vintage Garments, and the Bangladesh Army. You deal with the fabricator directly — design, factory fabrication, and on-site erection all under one roof.
What you get:
- Free quote and engineering consultation on your drawings
- In-house design + fabrication (own factory in Hemayatpur, Savar) + erection
- Certified steel and standard-compliant welding
- Delivery to project sites nationwide
- Trained erection crews for safe, on-time installation
- Fabrication/workmanship warranty
- Flexible, project-based payment terms (VAT included in quote — no hidden cost)
Call or WhatsApp our engineers: +880 1711-787556 / +880 1711-991775 (Sat–Thu, 9 AM – 6 PM).
Roof Monitor Frequently Asked Questions
What is the purpose of a roof monitor in a PEB?
It is a raised structure that exhausts hot air and smoke from the factory floor while allowing natural sunlight to enter. It is the most effective way to ventilate large industrial sheds naturally.
How is the roof monitor price in Bangladesh decided?
The price is based on the total weight of the steel framing and the square footage of the cladding sheets. It also depends on whether you choose painted or galvanized finishes. Contact us with your building length for a detailed quote.
Can a roof monitor be installed on an existing roof?
Yes. We can modify your current roof ridge to install a new PEB roof monitor. We will first check your rafters to ensure they can handle the weight of the new steel frames.
Is a roof monitor better than a turbo ventilator?
Yes, for large buildings. While turbo ventilators move air in small circles, a monitor allows a much larger volume of air to escape and also provides natural light, which turbo vents cannot do.
How do you prevent rain from coming inside?
We use deep louver overhangs and heavy-duty Z-flashing. This creates a path where air can go out, but wind-driven rain cannot enter. We use high-quality sealants on every joint.
What maintenance does a roof monitor need?
Since there are no moving parts like motors or fans, maintenance is very low. You only need to clean the bird mesh and translucent panels once a year to ensure maximum airflow and light.
Products That Go With This
- Steel Rafter: The main horizontal frames that support the monitor weight.
- Industrial Roof Sheet: The primary covering that must be flashed into the monitor base.
- Capping Flashing: Used to seal the transition between your roof and the monitor walls.
- Structural Nut Bolt: High-tensile fasteners used to join the monitor to the building.
Get a Custom Quote for Your Roof Monitor Today
Ensure your factory stays cool and bright with a custom-built ventilation system. Our engineering team is ready to review your drawings and provide a competitive rate for fabrication and installation.
✔ 150+ Projects Completed ✔ Own Factory in Savar ✔ Nationwide Delivery
Call/WhatsApp: +880 1711-787556.