Which Of Following Is A Function Of The Roof Ballast

Contribute to air circulation under the roof membrane which material would you be least likely to see being used as roof deck.

Which of following is a function of the roof ballast. The gravel top coat is also extremely resilient to heavy foot traffic and high wind scenarios. In roofing applications ballast can perform all of the following functions except. Because the ballast stones are loose laid and not embedded into a layer of tar asphalt the gravel is easy to move when conducting repairs or maintenance. Which material would you be least likely to see being used as a roof deck.

Roof membrane roof ballast if needed drainage flashing. The ballast is used to keep the roofing system cool and of out of the sun s harmful rays thus keeping energy costs down. Ballast also protects against hail and from foot traffic during repair or maintenance work. Decking materials performance requirements.

Despite the positive qualities associated with a ballasted roof system there are some challenges. Although single ply roofs inherently have sun protective qualities ballast provides an extra layer of protection from uv rays. When the concept first came to the u s plenty of roofers scratched their heads and wondered how the roof stayed on without being anchored especially during high winds or storms. Built up roofing system in roofing applications ballast can perform all of the following functions except contribute to air circulation under the roof membrane.