IIBEC - RRO Study Guide Questions with 100% Verified Correct Answers

IIBEC - RRO Study Guide Questions with 100% Verified Correct Answers When is it appropriate for a change directive to be issued? - Correct Answer When total agreement on the terms of the change order cannot be reached in a timely manner. Who controls the delivery, storage, and handling required for project materials? - Correct Answer The contractor Who is responsible for providing the RRO with personal protection equipment? - Correct Answer RRO's employer A contractor is installing an SPF roof. At a minimum, how many degrees should the ambient temperature be above the dew point for this roof? - Correct Answer 5 degrees F [2.8 degrees C] A __________ measures thickness of the coating during application. - Correct Answer Wet mil gauge According to NRCA, which two metals are solderable? - Correct Answer Galvanized steel and stainless steel When installing fire- and pressure-treated wood shake and shingles, which nail must be used? - Correct Answer 316 SS (stainless steel) Which two deck types are considered nailable? - Correct Answer Wood, plywood, and OSB The RRO is observing the Contractor install a 1/2" (13 mm) wood fiber cover board over the base layer of insulation; however the Construction Documents state that a 3/4" (19 mm) perlite cover board is to be installed. What should the RRO do? - Correct Answer Notify the Contractor, record the deviation and contact the Designer Authority. How would a change to the Specifications be made prior to the submittal of bids? - Correct Answer Addendum What seaming procedure is appropriate for TPO membranes? - Correct Answer Hot air welding The RRO observes that the temperature of the roofing asphalt at the point of application is too low. How should the RRO determine what the proper asphalt temperature at the point of application is? - Correct Answer Review the EVT of the asphalt. What could be a cause of blistering on an SBS roof? - Correct Answer Voids in the interply moppings What surface textures are acceptable for SPF? - Correct Answer Smooth, orange peel, coarse orange peel, or verge of popcorn Per OSHA, what is the proper distance from the wall that the base of a ladder should be placed? - Correct Answer 1/4 the working height