Ventilation systems are an integral part of your overall roofing package. For all steep-sloped roofs (including shingle, shake and slate). Proper ventilation systems along with proper underlayment and assure defense against ice dams.
Improper ventilation can cause damage to roof shingles, can void shingle manufacturer's warranties, can cause energy problems and can cause ice dams and leaking into the house.
It's easy to review your options and discuss your needs with an at-home free consultation. An experienced representative will visit your home with samples to answer all of your questions and to help you make the appropriate choices.