1.Overview: Tailor-made “Minimally Invasive Medicine”
Fully compatible and can extend the building’s lifespan. Modern reinforcement techniques follow the principle of “protective restoration” for historic structures. Through minimally invasive, additive, and reversible solutions, they not only preserve the original structural aesthetics and historical features of the building but also enhance its seismic and disaster resistance, preventing complete destruction during earthquakes or climate changes.
II. Traditional Wooden Houses (Rumah Kayu / Rumah Adat): Strengthening the Foundation and Nurturing Vitality
Indonesia boasts a rich heritage of wooden architecture (such as stilt houses). Wood is prone to decay, termite damage, and joint loosening in hot and humid environments.
⑴、Foundation Repair:
Procedure: For sinking column bases, we use micropiles to stabilize the ground, followed by local micro-lifting with hydraulic jacks to replace damaged bottom pads (Umpak).
Effect: No need to dismantle the entire wooden house, solving the tilting issue from the foundation.
⑵、Steel Node Reinforcement:
Operation: For loose tenon-and-mortise joints, reinforce them using high-strength stainless steel tie rods or concealed steel sleeves.
Effect: Locks the connection points to prevent the wooden house from “shaking apart” during earthquakes while preserving the visibility of exquisite traditional wood carvings.
⑶、Disaster Prevention Treatment:
Simultaneously apply professional anti-termite (Anti-Rayap) treatment and anti-corrosion coating to extend the building’s lifespan at the material level.
III. Low-Rise Old Brick-Concrete Houses (Rumah Tembok Tua): Adding an External Framework
These 1-3 story houses are most common in Indonesian towns and cities, mostly lacking earthquake-resistant structures.
⑴、“Barrel Hoop” Reinforcement (Restriction):
Solution: Utilize additional structural columns (External Practical Columns). Anchor steel bars through chemical planting at the external corners of walls and encase them with newly poured concrete.
Non-destructive: There’s no need to demolish the old walls; instead, it’s like giving the house an “exoskeleton,” protecting the old walls from collapsing outward during earthquakes.
⑵、Carbon Fiber Reinforced Polymer (CFRP) Patch:
Solution: Apply ultra-thin carbon fiber sheets to the bottom of aged beams or slabs.
Effect: Adds only 1-2mm in thickness, fully preserving interior ceiling height and original spatial perception.
⑶、Structural Bonding:
For cracked old brick walls, use a specially modified low-pressure injection epoxy resin. This material can penetrate tiny fissures and rebond the loosened bricks into an integrated whole.
4. Why is reinforcement considered “preservation” rather than “destruction”?
Principle of reversibility: Many modern reinforcement solutions (such as external steel bracing or tie rods) can be removed or replaced if more advanced restoration is needed in the future, without harming the core original structure.
Load-sharing principle: The reinforcement components take on the pressure that originally caused the old structural elements to “bear excessive loads.” For example, newly added micro-piles assume the weight, relieving the cracked old columns from compression and allowing them to be preserved.
Aesthetic avoidance approach: Based on the facade characteristics of Indonesian architecture, we conceal the reinforcement components within decorative moldings or apply coatings matching the original building materials, achieving “restoration that appears as new, strength that remains unseen.”
V. Professional Commitment to Indonesian Clients
Preserving the Layout: Reinforcement enhances performance within the existing space, requiring no demolition or alteration of your cherished interior decor or room arrangement.
A Leap in Safety: After reinforcement, older buildings that were highly vulnerable to earthquakes can achieve seismic resistance levels compliant with SNI 1726.
Lightweight Construction: No need for large excavators. We use lightweight machinery suitable for Indonesia’s narrow alleys (Gang), preserving courtyard landscapes and surrounding old drainage pipes.
VI. Conclusion
Old buildings should not be dilapidated but rather sturdy cultural assets. For traditional architecture and old residences, reinforcement techniques are not about “demolition and reconstruction” but “support.” Through minimally invasive correction, external frameworks, and material strengthening, we can give your old house the resilience to withstand the future while retaining its original cultural essence.
Expert Tip: If you reside in a historic ancient building, we recommend consulting our experts before reinforcement. We will develop a customized protective reinforcement plan for you in accordance with the requirements of UU No. 11 Tahun 2010 (Cultural Heritage Law).