You can maintain the temperature of your roof as same as the temperature of outside air with the cold roof. With warm roofs there is a great possibility of formation of ice dams on the roof but whereas with the cold roofs there is no such formation of ice dams on the roof whenever snow falls.
Ice dams are nothing but formation of ice on the bottom edges of roof whenever snow falls and melts and refreezes it. These ice dams catch more moisture whenever snow melts and seep through the roof into the building which can lead to structural damage of the roof. Snow doesn't melt in cold roofs so there is no question of forming ice dams and the problems caused by it.
Traditional cold roofs are constructed with well-ventilated attic space with a pitched roof. These roofs with ventilation provide insulation between the attic joists and the ceiling of the floor. If any gaps are present between the ceilings, they are sealed to keep moist out from the building. The roof after are constructed in such a way that it cannot be penetrated by air or moisture.
There will be some space present between the pitched rafters and the ventilation for giving the insulation to the interior of your building. Through this space, the warm air of inside your building escapes to outside and the cold air from the outside comes inside the building and the temperature between the inside and the outside becomes equal.
Cold roofing system is good for maintaining the building ceiling insulation in a proper condition. It reduces winter humidity inside the building. When the weather turns warmer, a cold roof makes itself useful by keeping the building cool and the opposite effect is in winter.
Ice dams are nothing but formation of ice on the bottom edges of roof whenever snow falls and melts and refreezes it. These ice dams catch more moisture whenever snow melts and seep through the roof into the building which can lead to structural damage of the roof. Snow doesn't melt in cold roofs so there is no question of forming ice dams and the problems caused by it.
Traditional cold roofs are constructed with well-ventilated attic space with a pitched roof. These roofs with ventilation provide insulation between the attic joists and the ceiling of the floor. If any gaps are present between the ceilings, they are sealed to keep moist out from the building. The roof after are constructed in such a way that it cannot be penetrated by air or moisture.
There will be some space present between the pitched rafters and the ventilation for giving the insulation to the interior of your building. Through this space, the warm air of inside your building escapes to outside and the cold air from the outside comes inside the building and the temperature between the inside and the outside becomes equal.
Cold roofing system is good for maintaining the building ceiling insulation in a proper condition. It reduces winter humidity inside the building. When the weather turns warmer, a cold roof makes itself useful by keeping the building cool and the opposite effect is in winter.