Roxul Industrial Insulation Process - Manual (Page 69)

Foot traffic
Tank tops are subject to foot traffic. To ensure the
insulation system is resistant to foot traffic, apply
a pressure-resistant board (slab) such as
ProRox
® SL 590 NA . If the radius of the tank top is
too large to allow the use of a rigid board (slab),
use a more flexible board (slab) in combination
with a (local) metal support construction. The
walkways need to be clearly marked.
Watertight covering
Conventional systems for tank top insulation are
often sensitive to weather damage (water, wind,
etc.) and the effect of chemicals. The costs of
maintenance, and the consequently lower
operational safety, are often higher than the
(energy) cost-savings that are realized by the
insulation. For this reason, many tank tops,
especially in the lower temperature ranges, are
not insulated.
ProRox ® Rocktight is applied directly on
ROXUL ® tank top insulation on site. As direct
cladding supports are no longer needed, it fits
seamlessly to all parts of the tank and has
unequalled rigidity (hardness) and mechanical
strength (e.g. can be walked upon).
In situations exposed to high wind stresses, a
special cable construction can be applied. This
will hold the insulation in place under the most
extreme weather conditions.
Anti-slip coatings are available that can easily be
applied to ProRox ® Rocktight.
The absence of cladding supports virtually
eliminates any risk of corrosion under the
insulation.
This ensures perfect protection to the insulation
and storage tank, which guarantees the
durability of the insulation.
For more information please contact our ROXUL
Technical ServicesTeam.
ProRox ® Rocktight RoXUL technical Services
team – for durable protection
ProRox ® Rocktight is a fiberglass reinforced
polyester (GRP) wrap positioned between
two sheets of foil. The material contains
resins, glass fibers and a special filling
agent. It is soft and flexible when
unprocessed. It can be cut or timed in any
shape and easily mounted onto the
insulation in this state. The polyester then
hardens when exposed to ultraviolet (UV)
light. Once hardened, ProRox
® Rocktight is
watertight and forms a mechanical
protection for the insulation.
1.5 Insulation of storage tanks
66