Virginia Roofing Contracting Qualified Individual Examination

Under 18VAC50-22-30, roofing contracting (ROC) is the service that provides for the installation, repair, removal, or improvement of materials common to the industry that form which kind of surface?

• AA decorative interior ceiling finish only
• BA watertight, weather-resistant surface for roofs and decks
• CA structural floor diaphragm for multi-story framing
• DA fire-rated shaft-wall assembly

Besides the ROC specialty, which Virginia classifications and specialties also provide the roofing-contracting function under 18VAC50-22-30?

• ACBC and RBC classifications and the HIC and CIC specialties
• BELE and HVA classifications only
• CPTC and DRY specialties only
• DWWP specialty and the PLB classification only

A Virginia ROC contractor is installing polyisocyanurate insulation boards on top of a steel roof deck as part of a new single-ply roof. Is that insulation work inside the ROC specialty?

• ANo, because all building insulation is reserved exclusively to the INS specialty
• BYes, because ROC includes roof insulation panels and other roof insulation systems above…
• CNo, because above-deck insulation may be installed only by an HVA contractor
• DYes, but only if the boards are installed below the deck in the attic

Which of the following is expressly included in Virginia’s ROC specialty in addition to the roof covering itself?

• ANew electrical service equipment and branch circuits
• BApplication of dampproofing or waterproofing
• CInstallation of a complete interior plumbing system
• DConstruction of a new dwelling’s floor framing

A contractor is installing a traffic-bearing waterproof wearing surface on an elevated outdoor deck so the space below stays dry. Which statement best matches the ROC definition?

• ADecks are excluded; ROC applies only to sloped asphalt-shingle roofs
• BROC covers watertight, weather-resistant surfaces for roofs and decks
• COnly a tile (TMC) specialty may waterproof a deck
• DDeck waterproofing is reserved exclusively to the FLR flooring specialty

A homeowner asks an ROC-only contractor to reroof a house and also replace the outdoor HVAC condenser and the electrical service panel. What is the correct licensing response?

• AROC includes all mechanical and electrical work that happens on a roofing job
• BThe ROC firm may do the roof covering but must leave HVAC and electrical service work to…
• CROC may replace the electrical panel if the condenser is left in place
• DROC may replace the condenser if no refrigerant is recovered

A firm holds only a Virginia painting and wallcovering (PTC) specialty. The owner wants to bid a complete tear-off and asphalt-shingle reroof valued well above the contractor-license threshold. What is required?

• APTC already includes exterior weather surfaces, so no other specialty is needed
• BThe firm needs a designation that provides the roofing function, such as ROC, CBC, RBC, H…
• CAny specialty is enough if the painter uses a licensed dumpster
• DOnly a steel-erection (STL) specialty can tear off a roof

During a shingle tear-off, several sheets of roof sheathing are found rotten and are replaced so the new covering can be fastened. Which statement best describes the ROC specialty?

• AReplacing isolated damaged sheathing as part of a roofing project is a typical roofing-sy…
• BAny wood replacement automatically converts the job into an ELE electrical project
• CROC never allows touching the deck; a separate FRM license is required for every sheet
• DOnly CBC contractors may drive a nail into roof sheathing

A Virginia home-improvement contractor (HIC) proposes to tear off and reroof an existing townhouse. The firm does not hold a separate ROC specialty. Is the reroof within HIC?

• ANo. Only an ROC specialty may touch a dwelling roof
• BYes. 18VAC50-22-30 states that HIC also provides the roofing function
• CYes, but only if the townhouse is converted to a commercial occupancy first
• DNo. HIC is limited to interior paint and flooring

A firm wants to construct a new two-story office building, including the structure and the roof covering. Which statement is correct?

• AAn ROC-only specialty is enough because every new building is just a large roofing project
• BCIC is enough because commercial improvement includes new building construction
• CA CBC classification is the classification that covers new commercial building constructi…
• DHIC is the correct designation because offices are treated as dwellings in the USBC

Where is the starter course installed on a typical steep-slope asphalt-shingle roof?

• AOnly at the ridge, under the cap shingles
• BAlong the eaves, with the sealant strip positioned to bond the first course
• COnly around plumbing vents
• DOnly on the gable rake after the field is complete

On a typical asphalt-shingle roof, drip edge is installed at which edges?

• AHips and ridges only
• BEaves and rakes
• CRidges only
• DValleys only

What is the established asphalt-roofing sequence for drip edge and underlayment at eaves versus rakes?

• ADrip edge over the underlayment at the eaves and under the underlayment at the rakes
• BDrip edge under the underlayment at the eaves and over the underlayment at the rakes
• CDrip edge is never used if felt is present
• DUnderlayment is always installed after the shingles so drip-edge order does not matter

A roof specified as 4:12 slope rises how far vertically for each 12 inches of horizontal run?

• A4 inches
• B12 inches
• C4 feet
• D1/4 inch

In climates where ice dams form along eaves, what is the established purpose of a self-adhering ice barrier?

• ATo replace all attic ventilation
• BTo seal the deck so water that backs up from an ice dam cannot reach the interior
• CTo increase the shingle color warranty
• DTo allow the eave drip edge to be omitted

What is the primary job of steep-slope underlayment beneath asphalt shingles?

• ATo be the building’s only waterproof roof for the life of the structure
• BTo provide a secondary weather barrier and protect the deck during and after covering ins…
• CTo replace step flashing at sidewalls
• DTo structurally stiffen roof trusses

In a closed-cut asphalt-shingle valley, how are the shingles typically finished?

• ABoth sides are woven alternately through the valley
• BOne side is run through the valley and the other side is cut back near the centerline on…
• CShingles stop 12 inches short of the valley and the gap is left open to the felt
• DThe valley is filled with roofing cement instead of shingles

At a shingle roof-to-sidewall intersection, what flashing method is the established steep-slope practice?

• AA single continuous L-metal stuck only to the siding, with no pieces in the shingle cours…
• BIndividual step flashings woven into each shingle course and covered by the wall cladding…
• CRoofing cement smeared up the wall in place of metal
• DLeaving a 2-inch gap with no metal so the wall can drain

What is the purpose of kick-out flashing at the bottom of a roof-to-wall intersection?

• ATo hold the last shingle course in a high-wind zone
• BTo divert water out of the wall intersection and into the gutter or away from the cladding
• CTo replace the need for a cricket behind a chimney
• DTo vent the attic at the eave

An ice barrier must extend from the eave to a point 24 inches inside the exterior wall line, measured horizontally. The eave overhang is 12 inches and the roof is 4:12. About how far up the roof slope must the membrane run from the eave edge?

• A24 inches along the slope
• B12 inches along the slope
• CAbout 38 inches along the slope
• D72 inches along the slope

For a typical three-tab asphalt shingle in a non-high-wind application, how many nails are commonly required per shingle?

• ATwo nails, placed only in the headlap
• BFour nails, placed in the manufacturer’s nailing zone
• CTwelve nails, equally spaced on the exposed tab
• DNo nails if roofing cement is used under every tab

When manufacturer instructions require a high-wind fastening pattern for laminate shingles, what change is typically made?

• ANails are omitted and only adhesive is used
• BThe nail count is increased, commonly to six nails per shingle, still in the nailing zone
• CNails are moved down onto the exposed weather surface
• DStaples are required instead of nails

Asphalt shingles are proposed on a roof that slopes 2:12. What is the established covering limitation?

• A2:12 is always forbidden for any asphalt shingle
• B2:12 is a low slope for shingles and requires the manufacturer’s low-slope underlayment m…
• CAny single layer of 15-pound felt is automatically enough at 2:12
• DAt 2:12 the shingles must be installed starting at the ridge and working downhill

At a masonry chimney on a shingle roof, what is the role of counterflashing?

• AIt is the first metal piece laid on the deck under the shingles
• BIt is let into the masonry or surface-mounted over the base/step flashing so water runnin…
• CIt replaces the need for a cricket on every chimney, regardless of width
• DIt is installed only on the downhill face of the chimney

A wide chimney sits on the slope of a shingle roof so that a large uphill valley is created behind it. What drainage device is the established detail?

• AA cricket or saddle that splits the flow around both sides of the chimney
• BA single plumbing-boot flashing stretched across the back
• CAdditional roofing cement only, with no change in plane
• DA ridge vent installed on the chimney crown

How are hips and ridges on an asphalt-shingle roof typically finished?

• AField shingles are simply folded over the hip or ridge without fasteners
• BCap shingles are installed with the recommended exposure, usually two nails each, working…
• COnly roofing cement is used, with no caps
• DMetal drip edge is used as the only hip covering

What is a built-up roof (BUR) in ordinary low-slope practice?

• AA single sheet of thermoplastic welded at the laps
• BMultiple plies of reinforcing felt mopped in bitumen, usually finished with a flood coat…
• CA wood-shingle roof over spaced battens
• DA standing-seam metal roof with floating clips

Which group lists the three common single-ply roof membranes?

• AEPDM, TPO, and PVC
• BType III asphalt, coal-tar pitch, and gravel
• CThree-tab, laminate, and luxury shingles
• DCopper, zinc, and lead-coated copper

How are field seams on TPO and PVC single-ply membranes typically made?

• ABy hot-air welding the overlapping sheets into a fused seam
• BBy mopping Type III asphalt between the sheets
• CBy nailing through the lap every 6 inches with roofing nails only
• DBy leaving a 1-inch open gap for drainage

How are EPDM field seams typically completed?

• ABy hot-air welding, the same as TPO
• BWith manufacturer seam tape or contact adhesive, not a thermoplastic hot-air weld
• CBy torching the rubber until it melts together
• DBy covering the lap with loose gravel only

Which pairing of modified-bitumen type and common application method is correct?

• AAPP is commonly torch-applied; SBS is commonly hot-mopped, cold-adhered, or self-adhered
• BAPP is only mechanically fastened with no heat; SBS can only be ballasted
• CBoth APP and SBS must be heat-welded with a TPO welder
• DAPP is a liquid coating rolled like paint; SBS is a metal panel

Compared with a mechanically attached single-ply, a fully adhered single-ply generally does which of the following?

• AEliminates the need for any flashing at walls and curbs
• BBonds the sheet to the substrate so wind cannot billow the membrane between fastener rows
• CRequires stone ballast over the entire surface
• DCan only be used on slopes steeper than 6:12

A ballasted EPDM roof is proposed over an existing deck. What structural concern must be confirmed before loading the stone?

• AWhether the deck and structure can carry the dead load of the ballast plus the roof assem…
• BWhether the stone can replace the need for any membrane
• CWhether ballast eliminates all flashing
• DWhether the building is in a no-wind climate so uplift can be ignored

On a low-slope single-ply over polyiso, what is the main reason to add a cover board under the membrane?

• ATo replace the need for any insulation R-value
• BTo protect the foam, improve hail and foot-traffic resistance, and provide a stable subst…
• CTo act as the finished walking surface for building occupants
• DTo vent the attic through the membrane laps

A low-slope roof measures 90 feet by 60 feet. How many squares of membrane are required to cover the net area before waste?

• A5.4 squares
• B15 squares
• C54 squares
• D540 squares

At a parapet or wall, a termination bar is used to do which of the following?

• AClamp and fasten the top of the membrane flashing so it cannot peel, usually with a seala…
• BReplace the need for any counterflashing or reglet on every wall
• CServe as the only drain on a dead-level roof
• DHold ballast stone at the field of the roof

What is the purpose of a cant strip at the base of a BUR or modified-bitumen wall flashing?

• ATo create a 45-degree transition so the membrane is not bent at a sharp right angle
• BTo vent the wall cavity into the roof system
• CTo replace the cover board over the entire field
• DTo serve as the finished coping on top of the parapet

On a gravel-surfaced BUR, what do the flood coat and aggregate primarily provide?

• AThe only structural diaphragm for the steel deck
• BUV protection, weather surfacing, and some hail/fire resistance for the bitumen plies
• CA vapor retarder under the deck
• DAttachment of the insulation to the deck in place of fasteners or adhesive

What distinguishes a standing-seam metal roof from an exposed-fastener panel roof?

• AStanding-seam panels hide the clips or fasteners in the raised seams; exposed-fastener pa…
• BStanding-seam panels are always asphalt; exposed-fastener panels are always EPDM
• CStanding-seam roofs cannot include any flashing
• DExposed-fastener panels never require underlayment or sealant washers

Through-fastened metal roof panels are attached how?

• AOnly with hidden clips that never pierce the panel
• BWith screws driven through the panel, typically using sealing washers, into the deck or p…
• CWith hot asphalt mopped to the ribs
• DWith ballast stone only

Oil canning on a metal roof is best described as which of the following?

• AA structural collapse of the purlins
• BVisible waviness or buckling in the flat of a metal panel, usually an appearance issue ra…
• CThe factory-applied oil that must stay on the panel for the warranty
• DA required texture that proves the panel is galvanized

Why do standing-seam roofs use floating or sliding clips on long panel runs?

• ATo prevent the panels from expanding and contracting with temperature and tearing fastene…
• BTo glue the panels permanently so they cannot move at all
• CTo replace the need for eave closures
• DTo allow the panels to be ballasted with stone

On a metal roof at a masonry wall, counterflashing is the metal that does which of the following?

• ASits on the deck under the panels as the only underlayment
• BCovers and sheds water over the upturned base flashing or panel end at the wall
• CReplaces the need for any sealant or reglet in every case
• DIs installed only as a ridge cap

Why should bare copper flashing not be placed in continuous contact with galvanized or Galvalume steel panels?

• ACopper is too soft to form a hem
• BDissimilar metals in the presence of moisture can cause galvanic corrosion of the steel
• CCopper cannot be soldered
• DBuilding codes forbid copper on every roof

A hemmed eave edge engaged over a continuous cleat is used on architectural metal to do which of the following?

• AHold the panel or flashing edge against wind uplift without a row of exposed face nails
• BVent the attic through the fascia
• CReplace underlayment on the entire roof
• DCreate the only snow-guard system required by every manufacturer