Fiberglas Reinforced Felt Underlayment provides an extra layer of protection beneath the shingles to help prevent wind-driven rain from reaching the roof deck.
Fiberglas Reinforced Felt Underlayment provides an extra layer of protection beneath the shingles to help prevent wind-driven rain from reaching the roof deck. It lays flat when installed and is highly resistant to wrinkling and tearing.
For more information, visitroofing.owenscorning.com/professional/accessories/underlayment/fiberglas-felt.aspx.