For example, if you install R-19 fiberglass batts in 2x6 frame walls, with the studs 16 inches on-center, double top-plates, and other elements of standard framing, the actual R-value of the whole wall with the R-19 insulation will be about R-15.
birthplace - the place where someone was born. place of birth. place, spot, topographic point - a point located with respect to surface features of some region; this is a nice place for a picnic; a bright spot on a planet. place of origin, provenance, provenience, cradle.
The placenta develops wherever the fertilised egg embeds into your uterus. An anterior placenta is when your placenta is attached to the front wall of the uterus. During your 20-week scan it will be noted where your placenta is positioned as follows: anterior on the front wall of your uterus; posterior on the back wall of your uterus; fundal on the top wall of your uterus; right or left lateral on the right or left side of your uterus; These are all completely normal places for the placenta to implant and develop.