R-Values. An insulating materialâs resistance to conductive heat flow is measured or rated in terms of its thermal resistance or R-value -- the higher the R-value, the greater the insulating effectiveness. The R-value depends on the type of insulation, its thickness, and its density.he effectiveness of an insulation materialâs resistance to heat flow also depends on how and where the insulation is installed. For example, insulation that is compressed will not provide its full rated R-value.
So for me, âtarry scantâ simply means to âmove on quicklyâ. But to others it has meant different things. This is particularly true when Tarry is used as an adjective. In this case it is pronounced differently and comes from the root, âtarââ¦that thick, black sticky stuff.
To tarry is to linger and take your time leaving. If you really like going to Sallyâs Diner for dessert, you might tarry over coffee and end up leaving after theyâve closed the kitchen. The verb tarry is perfect for describing what happens when those relatives that you see once a year come to your house for lunch and never seem to leave. When people tarry they stick around and take a long time to depart, sometimes lurking or loitering, or sometimes enjoying each other's company. Tarry can also mean to hang around a place without purpose. You might tarry in the park until the day is fading and you have to go home.