This service answers
“Can my building take extra floors, heavier machinery or a new use?”
You receive: Capacity check, strengthening design, drawings and supervised installation with QC records
When a building needs to carry more
Land in Bangladesh is scarce, so owners often add floors, install heavier machinery, or convert residential buildings to commercial or industrial use. Each change adds load to columns, beams, slabs and foundations. Building strengthening makes those changes safe — and makes them provable to RAJUK, buyers and lenders.
Start with a capacity check
Before strengthening anything, we check what the existing structure can carry. Adding two floors to a five-storey building raises the load on ground-floor columns by roughly 40%, which often exceeds their reserve. The check is based on measured sizes and tested concrete strength, not assumptions — see Detailed Engineering Assessment.
Strengthening methods compared
| RC jacketing | Steel jacketing | CFRP | |
|---|---|---|---|
| Strength gain | High | Moderate to high | Moderate |
| Ductility gain | Good | Good | Excellent |
| Added size | Significant | Small | Negligible |
| Speed and disruption | Slowest | Fast | Fastest |
| Material cost | Lowest | Moderate | Highest |
Most projects combine methods: RC jackets where large capacity is needed, CFRP where space and downtime matter, and footing enlargement or micro-piles when foundation loads rise.
Lighter alternatives
Sometimes the best strengthening is less load. A lightweight steel extension instead of a concrete storey, or relocating heavy equipment to the ground floor, can reduce the strengthening needed and the cost.
Quality on site
Strengthening depends on workmanship: surface preparation, anchorage, bond tests for CFRP, concrete tests for jackets and weld inspection for steel. Every step is recorded and handed over.
Questions owners ask
Can I add floors to my building?
Only after a capacity check of columns, beams, the roof slab and foundations, and with approval from the development authority (RAJUK in Dhaka). Strengthening often makes an extension possible.
Which is better, CFRP or RC jacketing?
Neither is better in general. RC jacketing gives the largest strength gain at the lowest material cost; CFRP is thinner and faster with excellent ductility. The right choice depends on the deficiency, space and downtime.
Does CFRP need fire protection?
Where the member needs a fire-resistance rating, yes. The epoxy loses strength at high temperature, so protective coatings or boards are specified as part of the design.