Show:
Hodgepodge
Single and loving it
Built Up and built right
Keeping it together
Raise the roof!
100
How would a change to the Specifications be made prior to the submittal of bids? A. Change Order B. Change Directive C. Purchase Order D. Addendum
D. Addendum
100
Today the single ply systems are generally grouped into two categories, although there are some materials have some characteristics of each. The types are…? a. Weldable (also called thermoplastics) and matting sheet b. Weldable (also called thermoplastics), non-weldable or vulcanized thermoset materials c. Non-weldable and matting sheet
What is b. Weldable (also called thermoplastics), non-weldable or vulcanized thermoset materials
100
Type ________ is recommended as a flood coat on a very low slope roof systems, as it is more water resistant and ductile than the other materials. a. Type IV b. Type II c. Type I d. Type III
What is c. Type I
100
Staples are used with _________ and ______. Measurements include 2 with 7/16” min. crowns and long enough to penetrate _______. a. Wood and wood particle and sheathing 2” b. Aluminum, stainless and sheathing ½” c. Wood and wood particle and sheathing 3” d. None of above
What is b. Aluminum, stainless and sheathing ½”
100
Fire resistance is an important consideration. Steep roofings are classified by Underwriters Laboratories as “prepared roof covering’ For asphalt shingles, most fiber glass-based products meet Class ________, while organic-base materials Class ________. a. Class C, Class C b. Class A, Class B c. Class B, Class A d. Class B, Class B e. Class A, Class A
What is Double check answer b. Class A, Class B
200
The RRO would be involved in which of the following tasks: A. Direct construction means and methods B. Document and quantify unforeseen conditions C. Accept material substitutions D. Help enforce project schedule
What is B. Document and quantify unforeseen conditions
200
The EPDM polymer readily accepts the addition of ________________, which in turn facilitates greater ______________. a. Extender oils and fillers loading b. Bitumen oils and tarpulin c. Organic materials and white fillers
What is a. Extender oils and fillers loading
200
A more precise test is for the viscosity at in-service (rooftop) temperatures. Recommended Viscosity _________centipoise for mopping and ______ centipoise for mechanical equipment. For comparison, water has a viscosity of about 1 cps and molasses 1000. a. 125 and 75 b. 200 and 50 c. 95 and 35 d. 250 and 25 e. 300 and 150
What is a. 125 and 75
200
Buckled shingles has all the following features except… a. Allow decking to come to moisture b. Use shingle underlayment c. Does not ensure adequate attic ventilation
What is c. Does not ensure adequate attic ventilation
200
Hail Resistance UL Standard 2218 Impact Test Level 1 and ______energy/joules and Level 4 and _________energy/joules. a. 9.8 and 18.3 b. 18.3 and 9.8 c. 4.6 and 31.2 d. 9.8 and 4.6 e. 18.3 and 4.6
What is c. 4.6 and 31.2
300
The RRO is reviewing the installation of a roof system over a steel deck. The RRO observes that the deck has been modified in order to accommodate the installation of the new CCTV system with an opening between 8in to 13in (200 mm to 325 mm) in diameter. The RRO is concerend about the integrity of the deck around the opening. What action should the RRO take? A. tell the Roofing Contractor to remove the CCTV system and repair the deck opening B. Inform the Roofing Contractor that plate reinforcement is required over the top of the deck due to the size of the opening C. Inform the Roofing Contractor that plate reinforcement is required on the underside of the deck due to the size of the opening D. Document the condition and contact the Designer of record for direction
What is D. Document the condition and contact the Designer of record for direction
300
All the “true elastomers weather well when filled with _____________White fillers and pigments are not as efficient in ________________________. a. Carbon white and filling gaps b. Carbon black and screening UV light c. Organic materials and filling seams
What is b. Carbon black and screening UV light
300
The key is to install a void-free layer of adequate thickness to resist water, yet not so thick as to permit slippage. Mopped layers of ____ pounds of bitumen gives film thickness of _____ considered ideal for interplay moppings. a. 50-70 pounds and 0.030” to 0.060” b. 15-30 pounds and 0.060 to 0.080” c. 80-100 pounds and 0.090” to 0.095” d. 15-30 pounds and 0.030” to 0.060”
What is d. 15-30 pounds and 0.030” to 0.060”
300
Which of the following seaming procedures is appropriate for TPO membranes? A. Hot-Air welding B. Solvent-welding C. Liquid-applied adhesive D. Mastic-applied
What is A. Hot-Air welding
300
Underlayments Lightweight version ASTM D4869 Type 1: 8lbs/100 sq ft. has a saturation of? a. 120% b. 100% c. 150% d. 90%
What is b. 100%
400
Th RRO is observing the Contractor install a 1/2' (13mm) wood fiber cover board over the base layer of insulation; however the Construction Documents state that a 3/4" (19m) perlite cover board is to be installed. What should the RRO do? A. Assume that the 1/2" (13 mm) wood fiber was approved B. Assume that the Contractor is not installing the correct material C. Contact the Owner immediately D. Notify the Contractor, record the deviation and contact the Designer Authority
What is D. Notify the Contractor, record the deviation and contact the Designer Authority
400
DOUBLE JEOPARDY!!!!!!! Propylene is _____ and one __________ a. 3 carbon atoms and double bond b. 2 carbon atoms and single bond c. 5 carbon atoms and double bond d. None of the above
What is a. 3 carbon atoms and double bond
400
___________ Process may include nailed base sheet, followed by alternating layers of adhesive reinforcement. These systems are tender until most of the solvent escapes. This process is also the most popular ___________projects where construction traffic can be controlled. a. Cold process and new projects b. Cold-process and reroofing projects c. Mechanical spreading and new projects d. Hand mopping and reroofing projects
What is b. Cold-process and reroofing projects
400
Which of the following could be a cause of blistering on a SBS roof? A. Voids in the interply moppings B. Excessive amounts of asphalt C. Incorrect type of asphalt D. Improper installation of the underlayment
What is A. Voids in the interply moppings
400
The roof valley will have a ____ slope than the two roof planes that form it. a. Higher b. Same c. Lower d. None of the above
What is c. Lower
500
Which of the following surfaces textures are acceptable for SPF? A. Smooth, orange peel, coarse orange peel, or popcorn B. Smooth, orange peel, coarse orange peel, or treebark C. Smooth, orange peel, popcorn or verge of popcorn D. Smooth, orange peel, coarse orange peel, or verge of popcorn
What is D. Smooth, orange peel, coarse orange peel, or verge of popcorn
500
The separation of charge also allows the polymer chains to be ____________ permitting solvent welding and _____ with bonding adhesives. a. Attacked by polar solvents and better bite b. Separate polar solvents and flexibility c. None of the above
What is a. Attacked by polar solvents and better bite
500
Glass cap sheets can achieve Class _ and _ ratings even on combustible roof decks. a. A and C b. C and D c. A and B d. B and D
What is c. A and B
500
NCRA recommends that the board size of polyisocyanurate roof insulation in adhered application not exceed: A. 2'x4' (600 x 1200mm) B. 3'x4' (900x1200mm) C. 4'x4' (1200 x1200mm) D. 4' x 8' (1200x2400 mm)
What is C. 4'x4' (1200 x1200mm)
500
Steep Roofing Ventilation with a code minimum of ____. ____ at eaves and ___at ridge or louver. a. 2:150, 55%, 55% b. 3:150. 60%, 60% c. 1:150, 50 %, 50% d. 4:150, 75%, 75%
What is c. 1:150, 50 %, 50%