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 is an organ formed in the uterus of a pregnant woman. During pregnancy, the placenta becomes an extra endocrine organ and produces hormones that help maintain the pregnancy.The first hormone produced is called human chorionic gonadotropin (hCG) . hCG helps maintain the corpus luteum during the early stages of pregnancy.uring pregnancy, the placenta becomes an extra endocrine organ and produces hormones that help maintain the pregnancy. The first hormone produced is called human chorionic gonadotropin (hCG) . hCG helps maintain the corpus luteum during the early stages of pregnancy.