
The MR-24 roof system can be installed
right over your existing roof

A long-life roof solution

The moveable tab is seamed into the panels -- allowing the roof to move with
the forces of expansion and contraction

A complete Pittsburgh double-lock standing seam is roll-formed the entire length of
the panels.

Ponding water magnifies moisture problems as water eventually finds its way
into the building

The Butler slope build-up system can be
used on almost any existing roof.
Energy savings for long term cost benefits.
The MR-24 roof, combined with 2, 4, 6 or more inches of
fiberglass insulation, stops the energy lost through an old, badly deteriorated built-up
roof system.
On new construction, the CMR-24 roof system
incorporates a layer of insulation board between the MR-24 panels and an interior liner
panel. The result is an energy efficient roof with a tough metal membrane and an
attractive, uniform interior appearance. |
Since 1969, Butler®
has installed the MR-24® roof system on over one billion square feet of buildings all
over the world. The MR-24 roof system is specified more than any other standing seam
roof.* Standing seam roofs aren't a
20th-century invention. Since the Middle Ages these roofs have been used when the
ultimate in protection was required.
Using 20th-century technology, however, Butler has improved
the standing seam roof, simplified its installation and can warranty the roof for up to 20
years. The result is the MR-24 standing seam roof system.
Throughout much of the country the built-up roof -- and more
recently, the single-ply roof -- have traditionally been accepted as the standards for all
types of buildings. At the same time, owners have also traditionally accepted the
problems often associated with those roofs -- leaks, poor energy efficiency and constant
maintenance costs.
These problems cost owners millions of dollars in maintenance
or replacement costs plus losses of inventory, damaged machinery and production time.
Now, owners and architects are using standing seam roof
systems for solutions to these age-old roof problems.
Butler roof systems move with
expansion and contraction.
The MR-24 roof performs day after day because of its ability
to move with the forces of expansion and contraction. A unique clip with a sliding
stainless steel tab allows the roof to move up to 2-1/2 inches as it reacts to daily and
seasonal temperature changes.
The stainless steel tab is securely seamed into the MR-24
panels by the patented Roof Runner® roll forming machine. The portable Roof runner
forms a 180° full Pittsburgh double-lock seam along the entire length of the panel.
(It's the same seam used to seal oil storage drums, beverage cans and fuel tanks.)
Built-up roofs fail because of their inability to deal with
Mother Nature. Temperature changes, freeze/thaw cycles and standing water all
combine to tear at built-up roofs. The oils begin to evaporate; felts begin to dry
out; and as the roof begins to move, cracks and splits appear and moisture enters the
openings.
Single ply roofs are experiencing deterioration problems
caused by environmental pollutants and weather-tightness problems at joints (or laps)
caused by material failures. And unlike the MR-24 system, the soft surface of a
single ply roof is very susceptible to damage from roof traffic.
All those problems prompt many owners to choose the MR-24
roof system when roof replacement is necessary.
No more flat roofs!
Ponding water from flat roof design magnifies moisture
problems and owners eventually find water inside their buildings.
When reroofing a flat roof, the first step is to build proper
slope into the new roof. Architects and roofing industry groups all acknowledge a
minimum roof slope of 1/4-inch in 12-inches is required for controlled, positive drainage.
The Butler slope build-up system can provide that proper roof
slope on any existing roof surface. It's designed to be simple, strong and very easy
to erect -- saving you money on both materials and labor. The structural members are
all prepunched to align with the roof panels to help assure proper installation.
Thousands of owners have found you can install the MR-24
system right over your existing roof -- without interrupting your business below.
You'll begin to save immediately on maintenance costs. And additional insulation can
be added as the roof is installed to help you save even more on energy costs.
* U.S. Steel survey of
construction specifiers
and Architectural
Record magazine. |