On a large HPL facade, the joints are part of the architecture. A well-planned panel grid can make the elevation look precise, while inconsistent gaps and poorly aligned modules can undermine an otherwise premium material.
Start With the Elevation Grid
Establish horizontal and vertical reference lines before cutting panels. Align joints with major architectural features such as window heads, sills, doors and structural breaks wherever practical.
Why Joint Width Matters
Panel gaps provide visual separation and accommodate the movement and detailing required by the system. The correct gap depends on the manufacturer’s installation requirements, fixing system and project conditions.
Avoid Tiny Slivers
A facade grid that creates very narrow strips at corners or around openings can look accidental and increase waste. Adjust the module early, before production, to create more balanced panel sizes.
Coordinate With Corners
External corners need a clear detail. Depending on the system, the design may use visible profiles, folded elements or carefully controlled panel junctions. The corner should be approved before the general panel fabrication starts.
Check Alignment During Installation
Installers should use reference lines and verify each zone before fixing large quantities. Small errors can accumulate across a long elevation if the first modules are not set correctly.
Frequently Asked Questions
What gap should be left between HPL panels?
Use the exact joint dimension specified by the panel manufacturer and approved facade system. It should not be guessed from another project.
Should HPL joints align with windows?
Where possible, yes. Alignment generally creates a cleaner architectural grid.
Can joints be hidden?
Some systems can visually minimise joints, but the approved fixing and movement requirements must still be respected.
HPL Maker can help project teams coordinate panel dimensions and facade detailing before fabrication.
