Which Of Following Is A Function Of The Roof Ballast

A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material.

Which of following is a function of the roof ballast.

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. Roof can have other functions decks parking solar array green roof disadvantages water drains slowly slight structural movements tear the membrane. In roofing applications ballast can perform all of the following functions except. The gravel top coat is also extremely resilient to heavy foot traffic and high wind scenarios.

Roof membrane roof ballast if needed drainage flashing. 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. Despite the positive qualities associated with a ballasted roof system there are some challenges. Decking materials performance requirements.

The ballast is used to keep the roofing system cool and of out of the sun s harmful rays thus keeping energy costs down. Which material would you be least likely to see being used as a roof deck. Ballast also protects against hail and from foot traffic during repair or maintenance work. Although single ply roofs inherently have sun protective qualities ballast provides an extra layer of protection from uv rays.