Which Of Following Is A Function Of The Roof Ballast

Roof membrane roof ballast if needed drainage flashing.

Which of following is a function of the roof ballast.

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. It is however ballasted generally with gravel. Built up roofing system in roofing applications ballast can perform all of the following functions except contribute to air circulation under the roof membrane.

The gravel top coat is also extremely resilient to heavy foot traffic and high wind scenarios. Which material would you be least likely to see being used as a roof deck. Although single ply roofs inherently have sun protective qualities ballast provides an extra layer of protection from uv rays. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material.

Roof can have other functions decks parking solar array green roof disadvantages water drains slowly slight structural movements tear the membrane. 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. The ballast is used to keep the roofing system cool and of out of the sun s harmful rays thus keeping energy costs down. Decking materials performance requirements.