Explore key aspects of membrane roof systems as outlined in the NRCA Roofing Manual. This quiz covers roof deck types, insulation practices, and essential building codes, enhancing your understanding and skills in roofing technology.
Increased roof system thermal performance.
Reduced thermal loss.
Reduced thermal bridging.
Reduced potential for membrane buckling, ridging and splitting.
All of the choices are correct - it is important to understand each one.
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The existing roof system and new re-cover roof system must be compatible or appropriately separated.
The roof deck should be secured to the structure of the building, support the design live load and dead load required for the building, and provide the necessary pullout resistance for fasteners used
The existing roof system should be inspected and tested, if necessary, to determine whether excess moisture is present within the roof assembly. Wet insulation must be removed and replaced with compatible materials.
The existing roof system should be inspected for shrinkage, ridging, splitting and cracking and then repaired appropriately. Portions that may present problems should be secured or removed.
All of these are general recommendations that should be considered.
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48
24
8
16
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False
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SBS Polymer-modified Bitumen Base Sheets
SBS Polymer-modified Bitumen Cap Sheets
Ethylene Propylene Diene Monomer Sheets
APP Polymer-modified Bitumen Sheets
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Cellular glass and Expanded polystyrene (EPS)
Extruded polystyrene (XPS) and Faced gypsum
Fiber-reinforced gypsum and mineral fiber
Perlite and Polyisocyanurate (ISO)
High-density polyisocyanruate and Wood fiberboard
All of the listed are types of rigid roof insulation.
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“Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation.”
“Standard Test Method for Predicting Long-Term Thermal Reflectance of Closed-Cell Foam Insulation.”
“Standard Test Method for Predicting Long-Term Thermal Reflectivity of Closed-Cell Foam Insulation.”
“Standard Test Method for Predicting Long-Term Technical Resistance of Closed-Cell Foam Insulation.”
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False
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A = 6", B = 12" and C = 12
A = 6", B = 6" and C = 12"
A = 12", B = 12" and C = 24"
A = 12", B = 24" and C = 24"
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Letter C is a 4 ply configuration with a 8 1/2" or 9 5/16" exposure
Letter C is a 3 ply configuration with a 8 1/2" or 9 5/16" exposure
Letter C is a 3 ply configuration with a 9" or 12" exposure
Letter C is a 4 ply configuration with a 9" or 12" exposure
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Letter B is a 2 ply configuration with a 17" or 18 9/16" exposure
Letter B is a 3 ply configuration with a 17" or 18 9/16" exposure
Letter B is a 3 ply configuration with a 11 1/3" or 12 7/16" exposure
Letter B is a 4 ply configuration with a 11 1/3" or 12 7/16" exposure
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A = Side Lap, B = Exposure Lap, C = End Lap
A = Side Lap, B = End Lap, C = Bottom Lap
A = Side Lap, B = Head Lap, C = End Lap
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Asphalt-coated Fiberglass-mat Base Sheet:
Asphalt-coated Fiberglass Venting Base Sheets:
Asphalt Fiberglass Ply Sheets:
Coal Tar Impregnated Fiberglass Ply Sheet:
Asphalt-coated Fiberglass Cap Sheet Surfaced With Mineral Granules:
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1/8:12 and 1/4:12
1⁄4:12 and 1⁄8:12
1⁄4:12 and 1⁄2:12
1⁄4:12 and 1⁄2:24
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Letter A is a 2 ply configuration with a 12" or 12 9/6" exposure
Letter A is a 3 ply configuration with a 12" or 14 9/6" exposure
Letter A is a 3 ply configuration with a 17" or 18 9/16" exposure
Letter A is a 2 ply configuration with a 17" or 18 9/16" exposure
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2 1/2 LB. lead or 16 oz. soft copper
20" square minimum, 2 1/2 LB. lead or 16 oz. soft copper
30" square minimum, 2 1/2 LB. lead or 12 oz. soft copper
30" square minimum, 2 1/2 LB. lead or 16 oz. soft copper
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Sheet metal gutter - The front of the gutter should be a min. 1/2" lower than the back to allow for overflow. Refer to the architectural metal flashing section of the NRCA roofing manual: Architectural Metal Flashing, Condensation Control and Re-Roofing - 2010 for other shapes.
Sheet metal gutter - The front of the gutter should be a min. 1" lower than the back to allow for overflow. Refer to the architectural metal flashing section of the NRCA roofing manual: Architectural Metal Flashing, Condensation Control and Re-Roofing - 2010 for other shapes.
Sheet metal gutter - The front of the gutter should be a min. 2" lower than the back to allow for overflow. Refer to the architectural metal flashing section of the NRCA roofing manual: Architectural Metal Flashing, Condensation Control and Re-Roofing - 2010 for other shapes.
Sheet metal gutter - The front of the gutter should be a min. 3" lower than the back to allow for overflow. Refer to the architectural metal flashing section of the NRCA roofing manual: Architectural Metal Flashing, Condensation Control and Re-Roofing - 2010 for other shapes.
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A = 8", B = 8", C = 8"
A = 12", B = 8", C = 8"
A = 12", B = 12", C = 8"
A = 8", B = 8", C = 4
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