The Contractor shall perform all work with the highest quality workmanship throughout to provide a neat, uniform appearance with no sharp edges exposed.

Insulation shall not be applied until all testing such as hydrostatic, radiography (with film numbers recorded on isometric piping drawings) etc., has been completed on all piping and equipment involved and all leaks have been repaired or made tight.

All surfaces to be insulated shall be thoroughly cleaned of all dirt, grease, rust, scale, etc., and shall be perfectly dry before insulation is applied.

Insulation shall not be installed during weather which might cause the pipe or insulation to become wet. Insulation to be installed over an extended period must be protected to ensure it remains dry until it has been properly sealed.

Insulation shall be installed such that shrinkage is held to a minimum. Any cracks or openings that occur in the insulation or weatherproofing are to be filled in with additional insulation or weatherproofing to provide a smooth sealed surface.

Insulation shall not cover the face of gauge glasses, equipment name or data plates or tags, nor be applied so as to interfere with dynamic parts of instruments or equipment.

All openings in metal jacketing for manways, nozzles, nipples, pipe supports, etc. are to be neatly cut to provide a snug fit and shall be thoroughly sealed and weatherproofed 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 in place.

At all flanges, unions, and pipe terminations, the pipe insulation shall be beveled at a 45º angle to facilitate removal 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.

Metal screws shall not be used on cellular glass insulation.

The thickness of basic insulation on pipe fittings shall be the same as the thickness of insulation on adjoining pipe.