Pipe Insulation Thickness Tables

Based on nes y50 enhanced and enhanced capital allowance thickness tables.

Pipe insulation thickness tables.

To meet the energy code requirement a minimum pipe insulation thickness of 4 5 in. Insulation thickness table to control heat loss. In the new standard these tables are also reproduced in metric units. The thickness of pipe insulation for most common residential cold water pipes is 1 2 thick.

The values are in figures 1 and 2 complete with the footnotes. Ashrae 189 1 2009 and iecc 2009 featured changes to their. There is usually no additional benefit of adding more than 1 2 thick fiberglass or rubber pipe insulation to cold water piping. Iron pipe double layer nesting chart iron pipe size iron pipe outside diameter insulation wall thickness 1 1 2 2 3 3 4 4 5 6 0 840.

Indicative thickness mm of insulation for non domestic hot water 60 c and low temperature heating service areas 75 c to control heat loss. Hot water 60 c low temperature. For product availability please contact your local owens corning area sales manager. Ashrae 90 1 2010 includes a new more stringent table.

These tables were generated using the naima 3e plus computer program which follows the heat transfer calculation methodology in astm c680. Our fiberglas pipe insulation portfolio is available in thicknesses up to 5 with inside diameters of up to 36. To avoid heat loss and reduced system efficiency pipe work in heating systems should always be insulated. The minimum pipe insulation thicknesses are given in two tables 6 8 3a and 6 8 3b in the standard.

Thickness 0 2 in 5 mm 0 4 in 10 mm material form 1 500 ft rolls. The table below indicates recommended insulation thickness. Hot cold water freeze protection. Very hot systems like hot water and steam systems should also be insulated to avoid potential personal injuries.

Refer to fiberglas pipe insulation sizing manual for more information. Eca y50 enhanced table 2. A low thermal conductivity allows specified thermal performance standards to be achieved with thinner insulation.