1st Class Insulator

Mills Marine & Ship Repair, LLC

Portsmouth, VA


The key areas of responsibility and functional knowledge required of a first-class mechanic in the Insulation shop. A first-class mechanic must demonstrate an advanced knowledge of the skills, functional knowledge and abilities required to perform tasks in these and related areas of responsibility.

Advanced knowledge means that the mechanic understands how to perform tasks in these categories (including, but not limited to, the specific tasks identified below) and is able to complete them independently and teach others how to complete the tasks. This also means that the mechanic has the necessary level of knowledge of the equipment, protective gear, and machinery required to complete these tasks. A first-class mechanic also is expected to strategize independently and problem-solve as appropriate, and to provide guidance to peers when running point on a job.

* Flange Shields/Fabricate (Installation)

  • Install and remove.
  • Make new flange shields.

* Boiler Insulation (Fabrication and Installation)

  • Fabrication - Measure and make Lagging Pads.
  • Install lagging pads.

* Pipe Insulation

  • Pipe Rubber/Sheet Rubber
  • Install small pipe rubber jobs of 3/8th inch to 2 inches independently to include measuring and cutting.
  • Install large pipe rubber jobs up to 18-20 inches independently to include measuring and cutting.
  • Know the difference between straight and elbow pipes.
  • Pipe Calcium KAYLO
  • Measure and saw the insulation (including to fit the pipe)
  • Assemble and secure rubber.
  • Mix and apply insulation mud and cloth o Pipe Fiber Glass Covering
  • Knowledgeable with Fiber glass and FSK tape
  • Measure and cut fiberglass p/c to fit elbows as well as straight pipe (1/2 inch to 12 inch)
  • Cloth out to complete the product.

* Hull board and Beam Cover Insulation

  • Insulation Fasteners/Stud (Layout and Install)
  • Layout a grid pattern
  • Grind, shoot or stick fasteners.
  • Overhead and Bulkhead Insulation
  • Measure material and prep space before installing insulation.
  • Knowledgeable with materials like plane face hull boards (1 & 2 inch), acoustic hull board (1 & 2 inch), Fiber Glass hull board (1 & 2 inch) and Polyimide foam (1 & 2 inch) o Beam Cover Insulation
  • Knowledgeable with T Beams and Angle Beams
  • Knowledgeable with materials like plane face hull boards (1 & 2 inch), acoustic hull board (1 & 2 inch), Fiber Glass hull board (1 & 2 inch) and Polymer foam (1 & 2 inch)
  • Measure, cut and install insulation.
  • Shoot or stick studs and secure them.
  • Knowledgeable with fiber glass tape and smoothing. 
  • Knowledgeable with lagging paste 

 * Block insulation on large pipe, boilers and machinery (turbines and generators)
 * Machinery Insulation

  • Knowledgeable with the following machines: Pumps (ex. Feed, still water) , Force Draft Blowers, SSTGs (steam generators), Main Feed Pumps and Evaporators
  • Knowledgeable of insulation temperatures
  • Knowledgeable with the general insulation process

 * Boiler Epoxy Resin-2 Part

  • Mix and apply a 2-part resin
  • Fire prevention for boiler casing and burner front piping

 * Installation of PCMS Tile

  • Read blueprints and specs for measurements and guidance.
  • Glue, caulk, measure and install PCMS tiles.
  • Clean tiles
  • Certification Preferred 

* Taping Out of Insulation. Sheet & Ducting

State/Province: Virginia
Must be able to obtain for position:  DBIDS
Shift: 1st,2nd or 3rd shift
Business Area: Ship Repair
Required Skills and Education: Required education: High School/GED
5 or more years’ experience.

A first-class mechanic must demonstrate an advanced understanding of different types of insulations and knowledge of NAVSEA standards 769.

Must be able to pass tests on the following:

Reading a ruler (100% passing grade)

Mitre Cutting (100% passing grade)

Other Requirements

* Must be able to read, write and comprehend simple instructions.

* Must be able to apply common sense understanding to carry out instructions in written, oral or diagram form.

* Must be able to calculate and understand units of measure, including fractions and decimals.

* Must know how to measure using a scale and tape measure.

* Must be able to wear applicable PPE (Hard hat, safety goggles, gloves, steel toes shoes, ear protection, Tyvek suits and respirators)