Kingspan GreenGuard Seam Tape adds an extra layer of air and moisture protection to the structure. 1 7/8″ wide Kingspan GreenGuard Standard Seam Tape is reecommended for flat surfaces. 3″ wide Kingspan GreenGuard Custom Seam Tape is recommended for for uneven surfaces, such as Kingspan GreenGuard RainDrop Building Wrap. Both tapes stick tight in all seasons, even when the temperature drops below freezing. Long-lasting UV stabilizers help them resist the deteriorating effects of the sun. The tapes can also be used to repair rips in damaged insulation and building wrap, eliminating waste and saving money.