As an underlayment for wood shingles and shakes, Cedar Breather® from Benjamin Obdyke's provides space for a continuous airflow between the solid roof deck and the shingles.
CertainTeed's waterproofing shingle underlayments are applied under roof shingles during new construction or re-roofing to protect your home’s interior from winter leaks caused by ice dams and wind-driven rain.
Owens Corning - Roof - Underlayment
For a roof to last, your roofing system must include protection from wind-driven rain.
Tamko Roofing Products
TAMKO® provides a complete line of saturated organic felt roll roofing products for use as shingle underlayments.