Multi-directional movement capabilities for critical seismic applications such as hospitals, corridors, and base-isolated structures.
Founded in 1960, MM Systems offers an exterior line of waterproof, fire-rated, thermal
and seismic expansion joint systems meeting the rigorous demands of parking structures,
stadiums and plaza decks. Our total "engineered solutions approach" provides design and installation support to architects, engineers, and contractors.
Designed for expansion
joint openings with the ability to provide a
smooth and virtually impact-free transition
between opposing floor surfaces in addition
to accommodating heavy rolling loads and
multi-directional seismic movement.
sealant factory bonded to a rectangular polyurethane
backer support system.
Seismic Specialty Systems are engineered to provide
safe, fire-rated passage between structures before,
during and after seismic events.
Fire barrier systems
with thermal, seismic and lateral shear capability.
A flexible rubber membrane supported by closed cell foam rubber bellows with integral metal flanges providing a weatherproof roof joint system.
Aluminum centering-bar systems accommodate thermal and seismic
movement ranges while providing moisture resistance and load resistance.
Surface mount systems
do not require costly block-outs and are available in
a wide range of size and movement ranges.
seismic seal snap-locked into two aluminum frames.
Engineered wall covers
provide seismic movement in a wide range of sizes, style
accommodate thermal and seismic movement while eliminating
Engineered floor cover
systems provide seismic movement capability, durability
and a wide range of size and style combinations.
Durable, heavy-duty designs
are engineered for punishing load environments while
providing a variety of frame styles and movement capabilities.
wall and ceiling systems are available in a wide variety
of materials, finish options and movement ranges.
Hidden sight line design
blends inconspicuously with adjacent construction while
providing high load, high movement capabilities.
Cover systems feature
variable pocket frames and receivers to accommodate
Architectural aluminum frames
with ElastopreneŽ seals in designer colors provide generous
movement ranges without sacrificing appearance.
Single and dual flush-gasketed
systems provide needed movement ranges in flat, no-bump
applications in a wide range of decorator colors.:
and dual flush-gasketed systems provide needed movement
ranges in flat, no-bump applications in a wide range
of decorator colors.