Roof covering tiles 'stick together' to withstand gusts, nasty weather

http://www.mediafire.com/file/yre8huewkjjn7wp/404035.pdf/file

<h2>Steps to Replacing a Shingle.</h2> For the house owner, this implies doing twice-yearly aesthetic checks of the roofing system to seek split, broken, or missing out on roof shingles on the outside as well