15 sq of roofing system shingles covers the amount of feet

http://myforum.alterman.me/MyBB/member.php?action=profile&uid=53454

<h2>Severe Hail Can Spoil Metal Roof Covering</h2> This additional room even more obstructs potential warmth transfer from the metal to underlying building products. Whirlwind makes a total line of steel roof