1 Architectural asphalt roof shingles cost, on average, cost around 20 to 40 percent more than 3-Tab shingles, or $2.50 to $5.00 per square foot installed ($3,750 to $7,500). 2  High end architectural shingles, however, could run as much as $6 to $8 per square foot installed ($9,000 to $12,000).
Masteron is well-known for being one of the only anabolic steroids with strong anti-estrogenic properties. Not only does this steroid carry no estrogenic activity, but it can actually act as an anti-estrogen in the body. This is why it has been effective in the treatment of breast cancer.
Estrogen is produced by the ovaries in women, while in men it is produced by the Sertoli cells of the testes and helps prevent apoptosis (programmed death) of sperm cells. There are three categories of âestrogensâ that occur naturally: Estrone (E1) â produced during menopause.