PROCerti˜cationfiles.nrca.net/Files/pdf/ProCert/0619-performance-exam...conditions are in place....

NRCA PROC E R T I F I C A T I O N

NRCAPROCerti�cation™

NRCAPROCERTIFICATION

NRCAPROCERTIFICATION

NRCAU N I V E R S I T Y

NRCALEGAL RESOURCE

NRCAU N I V E R S I T Y

NRCALEGAL RESOURCE

NRCA PROC E R T I F I C A T I O N

PROCerti�cation

GUIDELINES FOR PERFORMANCE EXAMSTANDARD TESTING CONDITIONS

NATIONAL ROOFING CONTRACTORS ASSOCIATIONFacebook “f” Logo CMYK / .eps Facebook “f” Logo CMYK / .eps

6-2019

GUIDELINES

National Roofing Contractors Association 10255 W. Higgins Road, Suite 600 Rosemont, IL 60018-5607 (847) 299-9070 Fax: (847) 299-1183 Website: www.nrca.net Email: [email protected]

Copyright © 2019. National Roofing Contractors Association (NRCA). All rights reserved. No part of this publication may be produced or transmitted in any form or by any means, electronic or mechanical, including photocopy or recording, or any information and retrieval system, without permission in writing from NRCA.

http://www.nrca.net/

mailto:[email protected]

Table of Contents Introduction .................................................................................................................................................. 4 Overview of Roles Involved in NRCA ProCertification Performance Exams ............................................ 4 Responsibilities of Qualified Assessors and Testing Locations .............................................................. 5

Confirming Safety .................................................................................................................................... 5 Confirming Standard Testing Conditions .................................................................................................. 5

Standard Testing Conditions Requirements .............................................................................................. 6 General Requirements ............................................................................................................................. 6 Environmental Requirements ................................................................................................................... 6

Mockup Requirements ................................................................................................................................. 6 General Mockup Characteristics .............................................................................................................. 6 Steep-slope Roof System Mockup Characteristics ................................................................................... 7 Low-slope roof System Mockup Characteristics ....................................................................................... 7

Authorized Testing Locations ..................................................................................................................... 8 Additional Policies ....................................................................................................................................... 8

Performance Exam Testing Location Agreements and Fees .................................................................... 8 Audits by NRCA ....................................................................................................................................... 9 Nondiscrimination Policy .......................................................................................................................... 9 Confidentiality .......................................................................................................................................... 9

Appendix A: Performance Exam Safety Checklist ................................................................................... 10 Appendix B: Specific Roof System Requirements for Materials, Tools and Equipment ....................... 12 Appendix C: Sample Mockup Designs ...................................................................................................... 19

4 Guidelines for Performance Exam Standard Testing Conditions

Introduction

NRCA ProCertification™ provides an opportunity for experienced roofing workers to demonstrate their skills and knowledge to become ProCertified™ roof system installers in specific roof system disciplines. A roof system installer certification is earned by passing a two-part exam.

Part One—Knowledge Exam. In an online exam, participants must answer questions correctly to establish their knowledge.

Part Two—Performance Exam. Participants are instructed to complete tasks to demonstrate their installations skills, including following safety requirements. A Qualified Assessor observes and scores the performance.

Performance exams are designed to measure minimum levels of accuracy and proficiency in performing several core tasks in each system regardless of any specific manufacturer’s details or specifications. The quantity and type of core tasks vary by system.

Overview of Roles Involved in NRCA ProCertification Performance Exams

Qualified Assessor —A person who schedules, conducts and reports the results from performance exams

Competent Safety Person – A person who can identify existing and predictable hazards in the surroundings or working conditions that are unsanitary, hazardous or dangerous and is authorized to take prompt corrective action to eliminate the hazards

Performance Exam Testing Location – A location that provides standard testing conditions for performance exams (This will be referred to as a testing location in this document. Each testing location will be unique in what it can or cannot offer, which will determine the roof system(s) that can be tested at a given location.)

Authorized Testing Location—A performance exam testing location that has an agreement with NRCA to provide standard testing conditions for NRCA ProCertification performance exams; an online directory of ATLs will be available on NRCA’s website.

Performance Exam Point of Contact —A representative of a performance exam testing location who coordinates NRCA ProCertification activities for that location. The point of contact should be someone who is familiar with a specific location’s business operations and the facility’s resources and who has authority to manage location assets and make decisions about scheduling performance exams.


Responsibilities of Qualified Assessors and Testing Locations All performance tests are scheduled by a Qualified Assessor. Performance exams may be conducted on a job site or at another location that provides standard testing conditions. Standard testing conditions follow. Qualified Assessors have full authority to determine whether standard testing conditions are in place. They must cancel a scheduled performance exam if standard testing conditions cannot be achieved. Confirming Safety Safety is a high priority during all NRCA ProCertification activities. All testing locations must provide a clean, safe testing environment conforming with standard testing conditions as described in the requirements listed in this manual. Qualified Assessors must confirm with a competent safety person at a testing location that a safety check was done before each performance exam. The Performance Exam Safety Checklist is found in Appendix A. For job-site tests, a competent safety person supplied by the candidate’s employer must oversee safety for the performance exam. Qualified Assessors should work with the appropriate individuals to rectify any safety or standard testing conditions problems. In a situation where a safety hazard cannot be corrected, the performance exam must be canceled and this must be reported by the Qualified Assessor to NRCA. Confirming Standard Testing Conditions In addition to a safe testing environment, other standard testing conditions also must be in place. These requirements include details for the mockup, roofing materials, and tools and equipment that will be used for a performance exam. The testing mockups, materials, tools and equipment vary by system. Specific Roof System Requirements for Materials, Tools and Equipment are found in Appendix B. Standard testing conditions also include environmental conditions, such as adequate light, appropriate temperature range and maximum wind speeds for outdoor performance exams. A Qualified Assessor and a testing location’s point of contact should collaborate in advance to determine responsibilities, such as:

• Providing mockups, tools, equipment and materials • Setting up as well as cleaning the testing area • Ensuring tools and materials are returned to storage and verifying the testing area is returned

to the proper condition after each performance exam is finished However, it is the Qualified Assessor’s responsibility to ensure standard testing conditions exist before a certification candidate arrives for his or her performance exam appointment. Ensuring standard testing conditions exist includes confirming the mockup and all required materials, tools, equipment and personal protective equipment (PPE) are in good working condition and readily available.


Standard Testing Conditions Requirements General Requirements All testing locations must provide the following space and conditions:

• At least one onsite point of contact for NRCA ProCertification activities • Access to restroom facilities • A clean, safe testing environment • Restricted access by a testing location’s employees/staff during testing activities • Access to disposal for roofing waste materials

It is preferable but not required that a testing location also provide uninterrupted WiFi connection for assessment scoring procedures. Environmental Requirements The following environmental conditions must be present during a performance exam:

• Daylight or equivalent indoor lighting • A temperature range between 32 F and 90 F • An average wind speed not to exceed 12 mph unless there is a wind break (penthouse, screen

walls) or high parapets • No precipitation

Mockup Requirements General Mockup Characteristics Mockups are an important element of standard testing conditions when performance exams take place in testing locations other than job sites. There is no standard mockup design. Rather, all mockups must meet certain design characteristics that, when met, establish standard testing conditions. Mockup designs can vary significantly in appearance yet still possess all the required characteristics. A Qualified Assessor should confirm minimum space requirements are met regardless of the testing location. The physical space must be large enough to accommodate any mockup(s) and allow a Qualified Assessor to safely and comfortably proctor hands-on performance exams. When setting up mockups, a clear, unobstructed area must remain open at least 4 feet on each mockup side for the duration of all performance exams. This requirement applies to a single mockup or when multiple mockups are used simultaneously. Performance exams are timed events. Candidates must complete an assignment within a specified time. Mockup characteristics such as physical size, slope and ease of access all can affect the time required to perform an assignment. For example, if one performance exam is given on a 4:12 slope steep-slope mockup and another is given on a 12:12 slope, the candidates’ performances likely will not be completed in similar time. Following are minimum required characteristics for mockups used in steep- and low-slope system performance exams. Example mockup drawings are found in Appendix C. NRCA’s mockup designs shown in the drawings represent minimum characteristic requirements. Actual mockups can be larger and more elaborate, if desired, providing they meet the minimum characteristics listed such as size, slope and types of penetrations or details. NRCA’s mockups are designed as portable, moveable units, but these qualities are not required.


Steep-slope Roof System Mockup Characteristics Steep-slope mockups must provide characteristics similar to those typically found on most steep-slope roofs. These characteristics are essential to ensure standard testing conditions are achieved and fair performance exams are administered. All steep-slope mockup designs should include the following characteristics:

1. Deck material must be one of the following: • A minimum of four-ply, nominal thickness of ½ -inch-thick (actual thickness of 15/32-

inch thick) plywood installed over supports spaced no more than 16 inches on-center • A minimum four-ply, nominal thickness of ⅝-inch-thick (actual thickness of 19/32-

inch-thick) plywood installed over supports spaced no more than 24 inches on-center

2. A slope of no less than 4:12 and no greater than 8:12

3. A total field area of no less than 120 square feet 4. A minimum of 10 lineal feet of hip and ridge in any combination that must include a minimum

of 4 lineal feet of hip and 4 lineal feet of ridge. The decking at the ridge must include a 1-inch opening on each side of center to accommodate the installation of continuous ridge vent materials.

5. The mockup must remain stationary and secure always for the duration of any performance exam

6. One rake edge

7. One hip roof area 8. One valley no less than 4 lineal feet in length

9. One chimney penetration no less than 12 inches and no more than 16 inches square extending above the roof deck no more than 18 inches on its tallest side. Chimney penetration design should allow for detaching and reattaching at various mockup locations.

10. One plumbing vent pipe penetration not exceeding a 5-inch diameter and not exceeding a 12-inch height on its tallest side. Pipe penetration design should allow for detaching and reattaching at various mockup locations.

11. Penetrations must never be placed within 12 inches of a ridge, hip, another penetration or a valley’s center.

12. A minimum 4-inch (nominal) fascia board on all lower drip edges 13. Lower drip edge must be less than 36 inches above ground

NRCA also recommends a separation sheet, such as rosin building paper, be affixed on steep-slope mockup wood decks for performance assignments requiring use of self-adhering ice and water protection membrane for easier material removal after exam completion. Low-slope Roof System Mockup Characteristics Low-slope mockups provide characteristics similar to those typically found on most low-slope roofs. The presence of these characteristics is essential to ensure standard testing conditions are achieved and fair performance exams are administered. All low-slope mockup designs should include the following characteristics:

1. Be at ground level and remain stationary and secure always for the duration of any performance exam

2. A minimum rectangular field area of no less than 32 square feet. Certain roof systems may require a larger field area. See Table 1 for minimum system-specific field areas.


3. A wood or metal deck capable of supporting two times its intended total load. If a wood deck is

used, a compatible separator sheet is required A rigid board insulation attached with appropriate fasteners also may be used. If a metal deck is used, rigid board insulation and appropriate fasteners are required.

4. Twelve lineal feet of an integrated parapet wall with a nailable substrate (such as plywood, OSB sheathing) that is no less than 12 inches high, framed and attached to one short side and one long side of the mockup

5. One parapet wall inside corner with one side no less than 12 inches long

6. One parapet wall outside corner with one side no less than 12 inches long

7. One roof edge no less than 8 feet long

8. One plumbing vent pipe penetration not exceeding 5 inches in diameter and not exceeding 12 inches high. Pipe penetration design should allow for detaching and reattaching at various mockup locations.

9. Penetrations must never be placed within 12 inches of a wall, roof edge or another penetration

10. One 10-inch-high, square box curb penetration with no side less than 12 inches long and none greater than 18 inches long

TABLE 1:

MINIMUM LOW-SLOPE SYSTEM MOCKUP AREA REQUIREMENTS System Type Minimum Field Area Mechanically attached thermoplastic system 32 square feet Adhered thermoplastic system 64 square feet Mechanically attached EPDM system 32 square feet Adhered EPDM system 64 square feet (Additional systems will be developed soon) (To be determined)

Authorized Testing Locations Authorized testing locations are performance exam testing locations that have an agreement with NRCA to provide standard testing conditions for NRCA ProCertification performance exams. Each ATL will offer roof system-specific testing services unique to its location’s capabilities and capacity. All ATLs will offer standardized mockups, materials, tools and equipment for the roof system(s) they allow to be tested at their locations. Please email [email protected] with inquiries about becoming an ATL. Additional Policies NRCA ProCertification has numerous program policies. Following are key policies relating to performance exam testing locations. Additional program policies can be found on NRCA’s website. Performance Exam Testing Location Agreements and Fees At their discretion, Qualified Assessors may opt to enter into written agreements with testing locations to document and memorialize the relationship, understanding and terms between the Qualified Assessor and the testing location.


Additionally, testing locations are permitted, at their discretion, to charge Qualified Assessors a reasonable, appropriate fee for conducting performance exams at their facilities or locations. However, if a testing location chooses to charge such a fee, it must charge the same fee to all Qualified Assessors for whom the testing location provides the same facility use service. The testing location may not vary charges or discriminate in the imposition of such a fee nor in the amount of such fee for any reason, including on the basis of race, color, ethnicity, religion, national origin, age, gender, sexual orientation, disability, marital status, or personal or business relationships Performance exam testing locations are free to negotiate any costs/fees with local Qualified Assessors for providing facility services associated with NRCA ProCertification activities. It should be noted that fees a testing location can charge must be equitable, fair and consistent for all in their immediate market. NRCA does not reimburse testing locations for expenses related to providing these facility services. NRCA does not receive any fees that testing locations collect for providing standard testing conditions or site access. Audits by NRCA NRCA reserves the right to conduct announced or unannounced audits of assessment activities and records to provide assurance that Qualified Assessors are complying with all relevant agreements, procedures, policy directives and guidance pertaining to NRCA ProCertification activities. An auditor may be an NRCA staff member, independent consultant, insurance representative or a designated agent NRCA authorized to conduct audits. In all cases, auditors are qualified by NRCA through training or experience. NRCA will provide auditors with standard performance criteria checklists for use in all audit activities. An audit summary will be prepared and presented for review by the NRCA ProCertification Committee. Results of the committee review will be shared in confidence directly with the Qualified Assessor. Audit results and all personal Qualified Assessor information will be kept secure and in strict confidence by NRCA, its auditors and the NRCA ProCertification Committee. Nondiscrimination Policy NRCA does not discriminate in the participation in NRCA ProCertification and prohibits discrimination against its applicants, candidates, certificants, Qualified Assessors, Qualified Trainers, employees and volunteers on the basis of race, color, ethnicity, religion, national origin, age, gender, sexual orientation, disability, marital status, or personal or business relationships. Membership in any voluntary membership or trade organization is not required. Confidentiality NRCA ProCertification manuals, training content and examination-related materials are provided confidentially to individuals and organizations providing services that support NRCA ProCertification activities. Information and materials must remain confidential and may be used only for the purposes of earning credentials and administering NRCA ProCertification performance exams. An applicant’s personal information and materials for any NRCA ProCertification credential shall remain confidential unless authorized by other NRCA policies or practices unless otherwise stipulated in writing by the applicant. Only members of NRCA ProCertification committees and staff and designated individuals acting on behalf of NRCA’s board of directors shall have access to these documents. NRCA will take all reasonable precautions to ensure an applicant’s personal information will not be released to third parties.


Appendix A: Performance Exam Safety Checklist

NRCA ProCertification Performance Exam Safety Checklist

The safety checklist is intended for the immediate area where performance exams are being administered.

*Requirements for ventilation are defined in 29 §1910.94, §1910.107, §1910.124(b)(4)(iii), CFR 1920.6, ANSI Z-9.2 and Z-33.1.

It is the responsibility of the performance exam testing location to validate ventilation meets requirements. It is the responsibility of the Qualified Assessor to confirm with a testing location’s competent safety person that a mechanical ventilation system, if present, is operable.

Item YES NO N/A Performance Exam Testing Location Other Than a Job Site

Confirm with performance exam testing location’s competent safety person that available ventilation meets requirements* and mechanical ventilation systems, when present, are operable

Eye wash station is fully functional and readily available

Job Site

Required fall-protection systems are properly set up

Substrate (deck) has been inspected and confirmed being firm and sound

All Performance Exam Testing Locations

Drinking water supply is readily available

Locate the personal fall-arrest system anchor device that will be used for the performance exam

Other building occupants/tenants are given advance notice when performance exams are scheduled

Testing area is cordoned off using caution tape, warning lines or other means necessary during performance tests to ensure restricted access and safe conditions are maintained when other work processes that could interfere with the testing process or expose the candidate to hazards are occurring

Power supply is properly grounded and GFCI device is in place (generator or building power)

Covers for power outlets, supply cabinets and connector boxes are present and secure

Required fire extinguishers are adequate size, current in inspection and readily available

No trip or fall hazards are present (exposed edge, holes, obstacles, unnecessary tools or equipment). If present, required fall-protection systems are accessible and/or set up.

First aid kit is fully functional and readily accessible


A person trained in first aid is on-site

No overhead hazards are present; if they are, proper PPE is available

Unrelated materials, supplies or product inventories are secured when present

No combustible materials are present within 10 feet and no flammable liquids are present within 50 feet of the testing area

Adequate lighting is present

Exits or means of egress are clear and properly marked

Safety Data Sheets for all materials present have been reviewed by the Qualified Assessor and are readily accessible on-site

Testing area is a minimum of 10 feet from operating powered equipment

System-specific setup checklist: All testing locations

THERMOPLASTIC SYSTEMS TESTING

Required tools and equipment are inspected for safe operating condition

Power extension cords are without defects

GFCIs are tested

Hot-air welding equipment is without defects and in good operating condition (damaged cords; missing ground pins; cracks or other damage)

Chemical/solvents/adhesives are correctly labeled and stored a minimum of 50 feet from testing area until use

Hand tools are without defects and in good operating condition (no missing parts; cracks; dull blades)

ASPHALT SHINGLE SYSTEMS TESTING

Pneumatic tools, air compressors and air hoses are inspected for safe operating condition


Appendix B: Specific Roof System Requirements for Materials, Tools and Equipment B1—Thermoplastic Roof Systems B2—Asphalt Shingle Roof Systems (Additional system lists will be developed in the future.)

APPENDIX B1: THERMOPLASTIC SINGLE-PLY ROOF SYSTEMS MASTER LIST OF TOOLS, EQUIPMENT AND MATERIALS

1. This list represents the tools, equipment and materials required for conducting any individual thermoplastic membrane performance exam assignment.

2. Individual assignments contain lists of required tools, equipment and materials. Not all items are required for any individual assignment.

3. Qualified Assessors must inspect all tools, equipment and materials for defects prior to use and ensure defective or otherwise unsuitable items are replaced or defects corrected prior to conducting a performance exam.

ITEM QTY. UNIT DESCRIPTION NOTES HAND TOOLS

1 Each Nail pouch with belt Pouch with minimum two compartments; adjustable belt size; suspenders optional; hammer loop optional

1 Each Silicone- or Teflon-coated membrane seam roller

Minimum 2-inch-wide roller

1 Each Seam tester/probe Not overly sharp 1 Each 10-inch scissors/shears,

minimum 4-inch cut Sheath optional

1 Each Utility knife with hook blade

Maintain sharp blade inventory based on consumption

1 Each Utility knife with straight blade


1 Each 25-foot retractable tape measure

1 Each Hand caulking gun For use with manufacturer’s sealants, such as water block

1 Each Sealant application dispenser

For use with manufacturer’s sealants, such as for seams

1 Each 36-inch-wide soft bristle push broom

For general cleaning and smoothing membranes into adhesive

1 Each Claw hammer For fastener hand installation 1 Each Chalk line with chalk For snapping lines to align membrane field sheets 1 Each Roofing shingle hatchet For fastener hand installation


1 Each 9-inch roller handle with extension pole

For use with standard paint/adhesive disposable rollers

1 Each 9-inch roller cover For applying bonding adhesive to flat surfaces; roller nap as specified by membrane manufacturer

1 Each 4-inch roller handle with extension pole

For use with standard paint/adhesive disposable rollers

1 Each 4-inch roller cover For applying bonding adhesive to flat or vertical surfaces or confined areas; roller nap as specified by membrane manufacturer

1 Each Disposable paint brush For applying bonding adhesive on vertical surfaces or at confined areas

1 Each Field membrane weight- ed roller

For bonding field membranes to substrate in adhered applications; minimum 4-inch diameter x 10-inch width or 5 pounds per lineal inch

1 Box/bag Clean cotton rags For membrane cleaning tasks 1 Each Fine-point permanent

marker or other accept- able marking pen/crayon

For marking membranes; type of marker recommended by material manufacturer

POWER TOOLS AND DEVICES 1 Each Hand-held electric hot-air

welding tool including a variety of nozzles

Minimum 1600 watt and achievable 1200 F temperature

1 Each Replacement heat element for hot air welding tool OR a second hand- held hot-air welding tool

On hand in the event of hot-air welding tool failure

1 Each Mechanical fastener electric drill with bits

Bits must match the fastener type; spare bits recommended

1 Each Type SJ or SJO heavy- duty electric extension cords

To match all power tool requirements and distance to power source

1 Each GFCI device; external or built into power source

To match power source and power tool requirements

1 Each Power source, building-integrated or generated

To match power tool requirements

1 Each Flat- and Phillips-tip screwdrivers

For miscellaneous attachment or maintenance tasks

SAFETY EQUIPMENT AND SUPPLIES 1 Pair Chemical-resistant

gloves Meeting product manufacturer’s published SDS requirements

1 Pair Cotton utility gloves with cuffs

For general hand protection


1 Pair Utility cut-resistant gloves

Kevlar or other comparable material for general hand protection

1 Pair Leather work gloves without cuffs

For general hand protection

1 Pair Z-87.1 rated safety glasses with side shields

Meeting the published SDS requirements of the manufacturer’s products being used

1 Pair Z-87.1 rated splash- resistant wrap-around style goggles


1 Each Disposable respirator For general dust protection, meeting NIOSH N-95 standards

1 Each Half-face respirator mask with filters

Organic vapor protection for anticipated exposures of volatile organic compounds and meet product manufacturer’s published SDS requirements

1 Each Personal fall-arrest system including harness, lanyard, line, rope grab and anchor device, including manufacturer’s instructions

All certification candidates are required to demonstrate donning a harness and lanyard in conformance with the equipment manufacturer’s instructions, demonstrate use of rope grab device and explain how the anchor device should be set up though they may not be required to set up or attach themselves to the anchor device.

1 Each OPTIONAL: Long-sleeve cotton or wool work shirt, various sizes

Although certification candidates are instructed to bring their own foot protection and work clothing, performance exams may not be administered without a candidate wearing protective clothing when required by the system manufacturer.

NOTE: Additional in-house safety equipment is provided by the testing location or made readily available on a job site by the controlling contractor. Examples of these items include fire extinguishers, first aid kits, eye wash facilities and proper ventilation.

ROOFING MATERIALS AND SUPPLIES MATERIALS NOTES:

- Supplies listed represent the minimum required for conducting a single hands-on thermoplastic performance exam.

- Individual performance assignments will include specific required materials list. - Materials inventory management recommendations are described in the Qualified Assessor and

Guidelines for Performance Exam Standard Testing Conditions manuals. 200 Square

feet Minimum 60-inch-wide reinforced TPO or PVC membrane roll, any thickness

Minimum amount needed on-hand for any performance assignment

20 Lineal feet

Minimum 18-inch-wide reinforced or nonreinforced TPO or PVC flashing membrane,

As required by system manufacturer and available mockups


any thickness

100 Pieces Field membrane seam fasteners and plates

Length and type as required by system manufacturer, job-site requirements or mockup conditions

100 Pieces Cap nail fasteners For membrane attachment at perimeters; length and type as required by system manufacturer and available mockup conditions.

1 Gallon Membrane cleaner solution As required by system manufacturer

3 Gallons Field membrane bonding adhesive

As required by system manufacturer and available mockup conditions

1 Gallon Flashing membrane bonding adhesive

Although typically the same adhesive is used to bond field membranes, some manufacturers’ requirements may differ. System manufacturer requirements and available mockup conditions may require additional adhesive.

1 Each Prefabricated pipe boot flashing, including draw band

As required by system manufacturer

(unspecified) Cut-edge sealant As required by system manufacturer. This material varies in form, packaging and application method.

ADDITIONAL MATERIALS NOTES:

- If a low-slope mockup is built with a wood deck, a separator sheet is required to meet the material manufacturer’s minimum recommendation. Type and size of separator sheet are not included in this list.

- If a low-slope mockup is built with a metal deck, a rigid board insulation is required to meet the material manufacturer’s minimum recommendation. Type and size of rigid board insulation are not included in this list.

- All assignments assume the substrate is prepared in advance of scheduled performance exams. The mockup provider should ensure separator sheets or rigid board insulation is installed in advance. Certification candidates are not tested on skills to install these materials.


APPENDIX B2: ASPHALT SHINGLE ROOF SYSTEMS MASTER LIST OF TOOLS, EQUIPMENT AND MATERIALS

1. This list represents the tools, equipment and materials required for conducting any individual asphalt shingle roof system performance exam assignment.

2. Individual assignments contain lists of required tools, equipment and materials. Not all items are required for any individual assignment.

3. Qualified Assessors must inspect all tools, equipment and materials for defects prior to use and ensure defective or otherwise unsuitable items are replaced or defects corrected prior to conducting a performance exam.

√ QTY. UNIT DESCRIPTION NOTES

TOOLS AND EQUIPMENT 1 Each Nail pouch with belt and

hammer loop Pouch with minimum two compartments; adjustable belt size; suspenders optional

1 Each Roofing shingle hatchet For hand nailing; include integrated cutting blade and shingle gauge

1 Each Utility knife with hook blade


1 Each Utility knife with straight blade

Maintain sharp blade inventory

1 Each 25-feet retractable tape measure

For general measuring tasks

1 Each Hand caulking gun For use with manufacturer’s sealants, such as water block

1 Each 36-inch-wide soft bristle push broom

For general cleaning of mockups and testing area

1 Each Light duty tin snips For cutting light-gauge metal flashing materials 1 Each Chalk line with chalk For snapping lines to align membrane field sheets 2 Each Pneumatic coil roofing

nail gun For materials attachment; NRCA recommends having two available in the event one might malfunction and prevent a candidate from completing an assignment

1 Length Air pressure hose With quick disconnect fittings: adequate length to comfortably reach between compressed air source and all mockup areas

1 Each Compressed air source (air compressor)

Adequate for providing minimum pressure requirements of the specific pneumatic coil roofing nail gun

SAFETY EQUIPMENT AND SUPPLIES 1 Pair Cotton utility gloves with

cuffs For general hand protection

1 Pair Utility cut-resistant gloves

Kevlar® or other comparable material for general hand protection


1 Pair Z-87.1 rated safety glasses with side shields


1 Each Personal fall-arrest system (PFAS) including harness, lanyard, line, rope grab and anchor device and manufacturer’s instructions

All performance exams require the candidate to demonstrate knowledge and ability to use a PFAS

NOTE: Additional in-house safety equipment is provided by testing locations or made readily available on a job site by the controlling contractor. Examples of these items include fire extinguishers, first aid kits, eye wash facilities and proper ventilation.

ROOFING MATERIALS AND SUPPLIES MATERIALS NOTES:

- Supplies listed represent required items for conducting any hands-on asphalt shingle system performance exam.

- Each performance assignment includes specific quantities of each material for that assignment.

- Materials inventory management recommendations are described in the Qualified Assessor and Guidelines for Performance Exam Standard Testing Conditions manuals.

Square feet

Standard three-tab asphalt shingles

Minimum quantity needed on hand

Square feet

Laminated asphalt shingles

Minimum quantity needed on hand

Coils Minimum 1 ¼-inch coiled roofing nails

Estimated quantity for installing 200 square feet of any asphalt shingle type, for use with pneumatic nail guns

Pounds 1¾-inch galvanized roofing nails

For installing hip and ridge shingles

Square feet

No. 15 underlayment felt For general system underlayment requirements

Lineal feet

Self-adhering polymer- modified ice dam protection membrane

For underlayment requirements at roof edges, valleys and around penetrations

Pieces Minimum 1-inch length plastic-cap nail fasteners

For attaching underlayment

Lin. Ft.

Continuous ridge vent material

For ridge vent installations

Each Minimum 5x7 inch size pre-bent metal step flashings

For vertical wall and chimney flashing installations

Lineal feet

T-type drip edge metal flashing

Minimum 26-gauge steel or 0.024-inch-thick aluminum, for installation at rake and eave edges


Lineal feet

Prefabricated 24 inch wide W-shape valley metal

Minimum 26-gauge steel or 0.032-inch-thick aluminum, for open valley installations

Each Soft lead metal pipe flashing sleeve, or prefabricated pipe flashing with elastomeric collar

For vent pipe penetration flashing

Each Metal apron flashing Minimum 26-gauge steel or 0.032-inch-thick aluminum, for flashing the headwall on downslope side of a chimney or dormer penetration. Minimum length should be a minimum 6-inches greater than the penetration width.

Each Backer flashing Minimum 26-gauge steel or 0.032-inch-thick aluminum, installed on upslope back side of chimney. Minimum length should be a minimum 6-inches greater than the penetration width.

Pieces Surface-mount style 4-inch face metal counterflashing

Minimum 26-gauge steel or 0.032-inch-thick aluminum, for counterflashing the penetration apron, step and backer flashings. Minimum length of each piece should be a minimum 6-inches greater than the width of each penetration side.

Each Static roof vent May be a manufactured of light-gauge aluminum, steel or plastic materials

ADDITIONAL MATERIALS NOTES:

A general-purpose building paper, such as a red rosin paper, may be applied to steep-slope mockups constructed with a wood deck in areas where self-adhering ice dam protection membrane is installed before performance exams to serve as a separator sheet for easier post-exam materials removal. Type and size of separator sheet is not included in this list.


Appendix C: Sample Mockup Designs These sample mockups are designed for maximum compactness, portability, ease of maintenance and storage and will meet the characteristic requirements listed in this manual.

Steep-slope mockup sample designs


Low-slope mockup sample designs

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