Super flat concrete and vapor barriers don’t always get along.
On a 70,000 square foot gymnasium in Hawaii, the placement carried two strict requirements:
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The vapor barrier could not be penetrated
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High F-numbers had to be achieved
Super flat floors demand precise elevation control across long runs. When a vapor barrier is involved penetration risks and membrane disturbance become a serious concern.
The contractor, Hawaii Masonry, turned to MAKO’s FinStand and FinCap screed support system to manage both requirements simultaneously.
The system was configured directly over the vapor barrier, maintaining membrane integrity while providing mechanical height adjustment for screed rails.
Setup efficiency mattered on a slab of this size. Hawaii Masonry inserted rebar between the Base Plate and FinStand to align support locations across long rebar runs, creating a consistent setup while preserving grade precision.
The placement required:
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Elevation control suitable for high F-number specifications
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Stability over vapor barrier without membrane compromise
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Repeatable support alignment across 70,000 square feet
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Fast installation to maintain schedule
Because the FinStand adjustability, crews were able to fine-tune grade without improvised shimming or rework. The base design distributes load without unnecessary penetration or damage to the vapor barrier layer.
After completion, Oke Aholelei of Hawaii Masonry stated:
“Best product we have ever used!”
On super flat slabs, elevation control is everything. On vapor barrier installations, protection of the membrane is equally critical. MAKO’s adjustable screed support system delivered both — allowing Hawaii Masonry to achieve required flatness tolerances while respecting strict membrane specifications.
For super flat commercial floors, gymnasiums, warehouses, and large slab placements where vapor barrier integrity must be maintained, MAKO provides a mechanically adjustable, field-proven solution built for performance without compromise.
Engineered for precision.
Designed for membrane protection.
Proven on high-spec super flat placements.
