Duct Insulation R Value Chart

Our r value guide to rigid insulation includes the doe s recommended insulation by zone chart r value calculator and base building material r values chart.

Duct insulation r value chart. Insulation level are specified by r value. Condensation control softr duct wrap helps control moisture condensation on the ductwork as well as on the outer vapor retarder jacket. 1 844 446 7858 my account. Recommended home insulation r values.

Blanket duct wrap is applied separately from the actual ducting process whereas insulated flexible duct comes with the insulation already wrapped. As a benchmark one inch of solid wood has an r value of 1. This helps maintain insulation effi ciency and reduces the likelihood of stained. The higher the r value the better the thermal performance of the insulation.

Insulation is also effective at reducing cooling bills. Operating costs are controlled due to reduction of heat loss or gain through duct walls. For example if you have a type of insulation. The united states department of energy defines thermal resistance also known as r value as the insulating material s resistance to conductive heat flow put more simply the r value measures the effectiveness of the insulation material.

Adapted from modera et al impacts of residential duct insulation on hvac energy use and life cycle cost to consumers ashrae transactions at 96 13 4. For most applications a rating of r 6 or better will provide the best efficiency and long term cost effectiveness. An r value is an assigned number derived from a specific testing procedure or calculation to determine a materials or building assemblage resistance to conductive heat transfer. The common denominator among varieties of insulation is the r value.

R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. The table below shows what levels of insulation are cost effective for different climates and. Gas oil r 6 to r 11 r 2 to r 11 heat pump or electric resistance r 6 to r 11 r 2 to r 11 a. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

A material with a higher r value is a better insulator. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and. R value is a measure of insulation s ability to resist heat traveling through it. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

Glass fiber duct wrap see r value table. Both types of insulation are available in a variety of thicknesses and r ratings.