1. GENERAL REQUIREMENTS
1.1 Contractor Involvement
The Contractor shall be responsible for proper coordination of his work and cooperation with the
principal and other disciplines.
Progressive testing of systems to be insulated shall be completed, inspected and approved by the
principal before insulation may be applied.
Suitable application temperature and conditions shall be observed and eventually be provided for
by the Contractor before the applications are done.
1.2 Storage requirements
The Contractor is responsible for proper material storage at the work site, in accordance with
the manufacturer's instructions.
Material shall be stored in an area to provide sufficient protection from moisture, ultraviolet
explosure and abuse.
Insulation showing evidence of moisture shall be rejected.
1.3 Surface preparation
Before any insulation material is applied, the surfaces to be insulated shall be absolutely dry,
free of dirt, dust, greese, frost, moisture and other imperfections.
All metal surface of piping, equpment or vessels under insulation shall be suitably painted with
a complete paint system in accordance with the Project Specification.
1.4 Typical application aspects
1.4.1 Securement / fixture / fastening
The securement of cellular glass insulation shall be done by mean of glass filament tape
or stainless steel bands.
The principal securement of the metal jackets shal be done by mean of stainless steel
bands and by mean of rivets and screws only where permitted. Screws and rivets shall
not be used whenever circumferential and/or longitudinal expansion or contraction of the
metal jacket is expected or required.
1.4.2 Joint executions
- Cellular glass shall have butted joints.
- All joints shall be carefully fitted. The edges of blocks shall, where necessary, be rubbed
or cut to a level so that all joints are tight and uniform. Where butted joints do not fit closely
the voids shall be eliminated by refitting or replacing of the insulation. Filling voids with joint
sealer or mastic are not acceptable. Any damaged corners shall be trued before application.