Private Residence
Ciasem House
Accoya Timberline Ceiling and Façade System Engineered for Geometric Precision in a High-End Urban Residence


Architect
STUDIOKAS

year
2023

location
South Jakarta, Indonesia

size
828 m²
The Brief
Project Overview
Ciasem House is an 828 m² residence emphasizing strict linear geometry across ceilings and façade surfaces.
Alignment tolerance became critical due to extended plane visibility.
Objective
The objective was to execute a high-precision Timberline system by delivering:
• Continuous linear rhythm across ceiling planes
• Tight joint alignment under humid urban conditions
• Stable Accoya performance across exterior interfaces
• Controlled installation without visible deviation
This project validated long-run alignment discipline at residential scale.

The Constraints
Meticulous Interior Geometry
The design relied on repeated linear modules. Minor alignment errors would compound across large ceiling areas.
Ceiling Application Complexity
Overhead installation increases precision risk. Any sagging, uneven spacing, or tolerance stacking becomes immediately visible.
Urban Climate Conditions
South Jakarta humidity required stable material selection to prevent long-term movement.
High Architectural Expectation
As a featured project in ArchDaily and Arsilokal, execution quality had to match published design standards.

The Engineering
Accoya Timberline Ceiling System
Accoya was specified for its dimensional stability across long linear ceiling applications. Reduced expansion and contraction protect alignment across extended runs.
Movement control is critical when every line is visible overhead.
Linear Alignment Calibration
Installation grids were predefined to maintain consistent spacing across large ceiling planes. Datum control prevented cumulative tolerance stacking.
Overhead work increases visibility of error. Alignment had to be engineered at source.
Ventilated and Stabilized Assembly
The ceiling assembly used a calibrated sub-frame and concealed fixing system to maintain flatness and reduce sag risk over time.
Rear ventilation supports drying and reduces trapped humidity.
Joint Discipline and Edge Control
Termination points, returns, and transitions were pre-resolved to preserve uninterrupted linear rhythm.
Clean lines depend on precise joint management, not surface finishing.
The Products and Materials
The Results and Insights
Continuous Geometric Rhythm Achieved
Clean linear sequences were maintained without misalignment across expansive surfaces.
Ceiling Stability Confirmed
Accoya’s structural reliability supported overhead application without visible deformation.
High-Performance Residential Execution Validated
The project strengthened Woodlam’s capability in delivering architectural-grade detailing at scale.
Warmth Through Discipline
Ciasem House demonstrates that warmth and geometric restraint can coexist when supported by engineering precision.

Location
South Jakarta, Indonesia
INDONESIA
Frequently Asked Questions
Got a question unanswered? Speak to our team.
Why is ceiling timber application more demanding than wall cladding?
Ceilings require strict flatness and secure sub-structure support. Any deviation in alignment or spacing becomes highly visible under lighting.
Why use Accoya for extensive ceiling runs?
Accoya’s dimensional stability reduces expansion and contraction, improving long-term alignment across large continuous surfaces.
How is alignment maintained across large ceiling areas?
Through calibrated installation grids, pre-resolved module spacing, and disciplined sequencing to prevent tolerance stacking.
Why is this project strategically important for Woodlam?
Ciasem House reinforces Woodlam’s expertise in precision-driven architectural timber systems, particularly in high-exposure residential projects requiring meticulous detailing.
Explore High-Precision Timberline Systems for Large-Scale Residential Interiors
Discuss how Accoya Timberline systems with calibrated installation grids, stabilised sub-structures, and disciplined joint detailing can deliver seamless ceilings and facades that combine geometric clarity, durability, and refined warmth in urban residential projects.

















