Pipe Insulation Thickness Tables

Indicative thickness mm of insulation for non domestic hot water 60 c and low temperature heating service areas 75 c to control heat loss.

Pipe insulation thickness tables.

The minimum pipe insulation thicknesses are given in two tables 6 8 3a and 6 8 3b in the standard. With a 25 year aged thermal conductivity as low as 0 025 w m k at 10 c mean kooltherm pipe insulation is one of the most thermally efficient insulation material commonly used. Hot cold water freeze protection. Ashrae 90 1 2010 includes a new more stringent table.

To avoid heat loss and reduced system efficiency pipe work in heating systems should always be insulated. To meet the energy code requirement a minimum pipe insulation thickness of 4 5 in. Thickness 0 2 in 5 mm 0 4 in 10 mm material form 1 500 ft rolls. Tables 6 8 2a and 6 8 2b see figure 3 can be used to determine the insulation thickness for both supply and return air ductwork.

Very hot systems like hot water and steam systems should also be insulated to avoid potential personal injuries. The thickness of pipe insulation for most common residential cold water pipes is 1 2 thick. For product availability please contact your local owens corning area sales manager. Hot water 60 c low temperature.

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. In the new standard these tables are also reproduced in metric units. The values are in figures 1 and 2 complete with the footnotes. The table below indicates recommended insulation thickness.

Eca y50 enhanced table 2. Ashrae 189 1 2009 and iecc 2009 featured changes to their. The following tables compare the minimum insulation thickness required to maintain the outside surface temperature at or below 140ºf. Refer to fiberglas pipe insulation sizing manual for more information.

There is usually no additional benefit of adding more than 1 2 thick fiberglass or rubber pipe insulation to cold water piping. Our fiberglas pipe insulation portfolio is available in thicknesses up to 5 with inside diameters of up to 36. A low thermal conductivity allows specified thermal performance standards to be achieved with thinner insulation.