Questions and Answers Solved 100

Questions and Answers Solved 100% How many eaves does a gable roof have ? Answer✔✔- 2 How many rakes does a gable roof have ? Answer✔✔- 4 Does a hip roof have any rakes ? Answer✔✔- No How many hips does a hipped roof have ? Answer✔✔- 4 How many eves are on a hipped roof? Answer✔✔- 4 Eave Answer✔✔- A projecting edge of a roof that extends beyond the supporting wall.Rake Answer✔✔- The sloped edge fo a gable roof Hip Answer✔✔- The inclined external angle of formed by the two sloping sides of a hip roof.Ridge Answer✔✔- The highest point on the roof represented by horizontal line where two roof areas intersect.Slope Answer✔✔- The incline angle of a roof surface expressed as a ratio of the rise of the roof to the run of the roof, expressed in inches.

A 45 degree angle is a slope of Answer✔✔- 12:12

What makes a roof assembly ? Answer✔✔- A roof deck plus the roof system.

Which of these is NOT among the purposes of a roof deck? Answer✔✔- Provide waterproofing and moisture control Which of the following is a non stationary load that a roof deck must be able to support? Answer✔✔- An installers mobile equipment up on the roof.What is the purpose of light weight insulated concrete? Answer✔✔- To form or fill or provide insulation.Which type of concrete is designed to hold weight? Answer✔✔- Structural concrete.Which type of decking withholds most moisture? Answer✔✔- OSB Why does the NRCA recommend replacing composite roof deck made of laminated insulation & OSB?Answer✔✔- Their tendency to hold moisture can lead to dimensional changes and fastener back out.When you are installing a wood deck made of boards,planks,plywood,or OSB, which of the following is the most accurate statement ? Answer✔✔- The thickness of the wood material is based on the design loads of the building.Which statement most likely accurately describes wood plank and wood panels decks? Answer✔✔- The proper thickness of wood material is determined by the design of the loads.Which statement most accurately describes the best roofing systems? Answer✔✔- A system that is matched to building specifications and characteristics.How should the reinforcement component of a built-up roof system installed? Answer✔✔- Embedded between layers of waterproofing material.While heating up the bitumen material in a kettle on the jobsite, which of the following should you do?Answer✔✔- Circulate the bitumen material on a regular basis while the heating is going on.

Which of these is the best way to apply built up roof piles in low slope roof membranes? Answer✔✔- As a complete roof membrane in a single day.Which of the following serves as a weather proofing componant in single ply slope roof membranes?Answer✔✔- Thermoset or thermoplastic membranes.What is the purpose of an expansion joint in low slope roofing systems? Answer✔✔- To minimize the effects the stresses and movements in a roofing system.Which of these is the minimum recommendation for placement of expansion joints in a roof assembly?Answer✔✔- In the same location as the buildings structural expansion joints.Which of these is the most appropriate for installing eave edge metal in asphalt shingle roofs?Answer✔✔- Extend over the flange Which of these is the most important performance characteristic for granules on asphalt shingles?Answer✔✔- To protect the coating grade asphalt surface.Which of these materials are most likely to cause more rapid deterioration in roofing systems with vaulted or cathedral ceilings? Answer✔✔- Asphalt based components installed over insulated non vented decks.What does the NRCA recommend when installing an asphalt shingle roof? Answer✔✔- Minimum of 6 nails per shingle should be used for the roofs in highwind regions.Which of these is common risk from use of nail base insulation and its impact on steep slope roof assemblies? Answer✔✔- Condensation or moisture accumulation.Which of these is the most likely to need to be enhanced when installing valleys in areas prone to regular freeze throw cycles and accumulations of ice and snow? Answer✔✔- Open valleys.

What is the purpose of batten systems in slate or tile roofs? Answer✔✔- To strengthen the bond between tiles or slate shingles.Which one of the following is true? Answer✔✔- Vapor moves from inside toward the outside of a building in cold weather.Where is the best place to install a built in gutter, so that if the gutter ever failed, leakage to the interior would be very unlikely? Answer✔✔- At the eave.Which of the following is true? Answer✔✔- High wind areas often require more roof fasteners or adhesives.In the case of water build up due to improper drainage, which of the following is LEAST likely to happen?Answer✔✔- A sudden change in the slope and the strength of the deck.What is the most appropiate method of attaching wood roofing to the substrate? Answer✔✔- Wood roofing requires a min of 2 fasteners for shake or shingle.At what slope does the NRCA recommend that slate roofing have a weatherproof memebrane under the slate? Answer✔✔- At all slopes What fasteners are appropriate for attaching slate to roof decks? Answer✔✔- Copper slating nails Which of these fastening does NRCA recommend when installing a slate roof? Answer✔✔- Just touch the nail head to the slate.Which of these is common purpose of batten system with a tile or slate roofing system? Answer✔✔- To strengthen the bond between tiles or slate.Which statement is most true about the way the weather can affect the installation of roofing systems?Answer✔✔- Additional fasteners and adhesives should be used when installed in windy conditions.