CH 4 Roofing System Flashcards
From perspective of roof maintenance, permanent equipment is best placed?
A. Somewhere other than the roof
When asphalt and coal-tar pitch are placed in a jar of mineral spirits:
B. Only the coal tar will dissolve
A roofing detail that provides structural strength to the flashing membrane and is used at the junction of the roof with a wall is the:
A. Cant strip
Wet patch materials have a better chance of success if the:
B. Surface water is removed.
The word bitumen refers to:
B. Thermoplastic hydrocarbons
Which statement about metal roofing is true?
D. Spot rusting is not a normal occurrence on metal roofs.
When dry felt impregnated and/or lightly coated with bituminous saturant to make water - repellent product is called a:
C. Ply sheet
Which type of asphalt is frequently called steep, has a softening point of 185 to 205 degrees and is suitable for roofs with slopes up to three inches?
C. 111
Which is a non-weldable thermostat sheet (elastomer) used in single-ply roofing systems?
D. EPDM (ethylene-propylene-diene-terpolymer)
The three most common methods of roof venting are stack, edge and?
A. underside
When joining together elastometric sheets, a solvent based adhesive is applied in conjunction with:
A. tacky, pressure sensitive tape
Which of the following is not likely to affect a reroofing project timeline?
C. materials available
Which of the following serves the same proposes as pea gravel?
A. Stone ballast surfacing
Which of the following is not a type of roof flashing?
D. Roof back flashing
Why is it important to check the level of filler in uncovered pitch pitch pockets during every inspection?
A. Because the filler shrinks with age
