5.0 Piping Insulation
5.1 Insulation Construction shall be performed after all the insulation preparation have been finished and released.
5.2 Factory fabricated sectional pipe insulation shall be applied in staggered joint construction and secured with wire loops or bands on 225 mm centers. On multiple layer construction, all joints shall be lapped one-half of each section between layers. Each layer shall be secured separately. All joints shall be securely butted and all cracks, joints, etc. shall be filled with insulating sealant as appropriate.
5.3 Mastic sealer shall be used around pipe supports where the insulation is punctured by the support.
5.4 Heat traced lines shall be insulated to completely cover both line and tracing.
5.5 Where insulation is required on the outside of piping, vessels or equipment that extends through an exterior building wall or roof, the insulation shall not stop at the exterior of the building but shall be extended for 300 mm inside the building.
5.6 Any cracks or openings that occur in the insulation or weather-proofing are to be filled in with additional insulation or weather-proofing to provide a smooth sealed surface
5.7 At all flanges, unions, and pipe terminations, the pipe insulation shall be bevelled at a 45°angle to facilitate remove of flange bolts and union collars without damage to the main pipe insulation and metal jacketing. A screwed and sealed metal cover shall be installed.
5.8 All openings in metal jacketing for nipples, pipe supports, etc. are to be neatly cut to provide a tight fit and shall be thoroughly sealed and weather-proofed to prevent moisture from penetrating under the jacket. Openings shall be fitted with a metal collar or suitable flashing embedded in sealant and screwed firmly on place.
5.9 Insulation shall be covered with metal jacketing lapped a minimum of 50 mm on all seams and secured with screws and bands, locating one band at each lap joint and spaced a maximum of 450 mm on centre. Vertical jacketing shall be supported with “S” clips.
5.10 All insulation shall be clad with metal jacketing. Jacketing shall be installed so as to shed water and protect against wind and blowing rain.
5.0 Piping Insulation 5.1 Insulation Construction shall be performed after all the insulation preparation have been finished and released.5.2 Factory fabricated sectional pipe insulation shall be applied in staggered joint construction and secured with wire loops or bands on 225 mm centers. On multiple layer construction, all joints shall be lapped one-half of each section between layers. Each layer shall be secured separately. All joints shall be securely butted and all cracks, joints, etc. shall be filled with insulating sealant as appropriate.5.3 Mastic sealer shall be used around pipe supports where the insulation is punctured by the support.5.4 Heat traced lines shall be insulated to completely cover both line and tracing.5.5 Where insulation is required on the outside of piping, vessels or equipment that extends through an exterior building wall or roof, the insulation shall not stop at the exterior of the building but shall be extended for 300 mm inside the building.5.6 Any cracks or openings that occur in the insulation or weather-proofing are to be filled in with additional insulation or weather-proofing to provide a smooth sealed surface 5.7 At all flanges, unions, and pipe terminations, the pipe insulation shall be bevelled at a 45°angle to facilitate remove of flange bolts and union collars without damage to the main pipe insulation and metal jacketing. A screwed and sealed metal cover shall be installed.5.8 All openings in metal jacketing for nipples, pipe supports, etc. are to be neatly cut to provide a tight fit and shall be thoroughly sealed and weather-proofed to prevent moisture from penetrating under the jacket. Openings shall be fitted with a metal collar or suitable flashing embedded in sealant and screwed firmly on place.5.9 Insulation shall be covered with metal jacketing lapped a minimum of 50 mm on all seams and secured with screws and bands, locating one band at each lap joint and spaced a maximum of 450 mm on centre. Vertical jacketing shall be supported with “S” clips.5.10 All insulation shall be clad with metal jacketing. Jacketing shall be installed so as to shed water and protect against wind and blowing rain.
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