I received 3 estimates today to have my roof replaced. I got conflicting information from the 3 roofers and could use some help with questions I have.
One roofer suggested I have a ridge vent installed (about 44 feet). He was going to also replace my 6 turtle vents with larger turtle vents. He said having both a ridge vent and turtle vents would increase ventilation. A different roofer told me that if I go with a ridge vent that I need to have the turtle vents removed and covered up. He said if I didn’t cover up the turtle vents, they would act as intake vents instead of exhaust vents and I wouldn’t get proper ventilation. Who’s correct?
One roofer told me that he would install new felt on top of the old felt using 15 lb. on the 4/12 area and 30 lb. on the 8/12 area. He said removing the old felt was not necessary. The other roofer told me he would remove the old felt and replace with 30 lb. felt on the entire roof. Which is better?
One roofer is using 30 Year Owens Corning. The other is using 30 Year GAF/Elk. Is there an opinion on what is better?