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Schematic Design
Design Development (DBB or DB)
100% Draft Construction Documents (DBB) or 100% Draft Design-Build Construction Documents (DB)
100% Complete Construction Documents (DBB) or 100% Complete Design-Build Construction Documents (DB)
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Schematic Design
___ | Required deliverables submitted. | |||
Roof/waterproofing assembly(ies) appropriate for the building's intended use, location and design life expectancy. | ||||
| Roof/waterproofing assembly(ies) appropriate for deck type, slope, fire, wind hail, uplift and thermal requirements, vapor control, environmental requirements and cost. | |||
Roof/waterproofing assembly(ies) application appropriate for climate locations considering hot and cold temperatures, wind, and precipitation. | ||||
| For low slope roofs, 2-ply modified bitumen and a single ply membrane is the system of choice. Use a modified bitumen roof in areas that require high puncture resistance, exposure to abuse or need frequent access to maintain mechanical equipment. Use a single ply membrane on complex configured roofs, roof with many penetrations or when roof access needs are minimal. | |||
___ | Avoid ballasted, sprayed polyurethane foam, APP modified bitumen or cement composite roofs. | |||
___ | Consider steep slope roofing systems whenever feasible. | |||
In high snow areas, avoid steep pitch roofs that shed snow over doors and windows. Design building shapes and roof configurations to minimize damage from sliding snow/ice to the roof itself, dormers and pipe penetrations. | ||||
___ | Use cold roof techniques in areas where snow and ice can accumulate on the roof. |
Design Development (DBB or DB)
___ | Required deliverables submitted. | |||
___ | Building Code compliance with fire rating classification, wind classification and hall rating. | |||
Comply with NPS Roofing/Waterproofing design standards and National Roofing Contractors Association Roofing and Waterproofing Manual and International Building Code. | ||||
___ | Provide wind uplift calculations based on ASCE 7. Specify roof systems that meet ASCE requirements. | |||
___ | Provide roof drainage calculations for sizing roof drains, leaders, downspouts and gutters | |||
| Provide written documentation for determination of required roof fire rating class using procedures in IBC or NFPA. | |||
Review building's interior temperature and humidity conditions and climate to determine vapor barrier requirements. Calculate dew point location within the wall and roof assembly. | ||||
| Determine compatibility of roof material with other materials that may settle onto the roof or flow off the roof. | |||
___ | Determine need uction sequencing and the affect it will have on roof assembly selection.for constr | |||
___ | Consider maintenance, repair and eventual reroofing (life cycle cost) in final selection of roofing system. | |||
Obtain roof slope by constructing slope in structural system in lieu of tapered insulation boards or lightweight concrete fill. | ||||
___ | Use of lightweight insulating concrete, gypsum fill or asphaltic perlite fill is not recommended unless the materials are extensively used in the project area and there is sufficient contractor competition. | |||
| Determine roof pitch after considering potential roof deflections, and existing structural deck conditions to insure positive drainage. For low slope roofs, maintain a minimum _'/ft. roof slope and 1/8'/ft. along valleys by using crickets and tapered insulation. For high slope roofs, consult with codes and roofing manufacturer's limitations. | |||
___ | Review roof configuration and roof drainage layout to provide most efficient means to remove water. | |||
___ | Use internal roof drains in climates where freeze/thaw condition is prevalent. In freeze/thaw climates, locate gutters, downspouts, scuppers and drains in area which receive sunlight if possible. | |||
Avoid built-in gutter systems in which drainage passes through or part of the interior spaces or is concealed in exterior wall cavity. | ||||
___ | Use sidewall louvers for intake and exhaust systems whenever possible. | |||
___ | Avoid rooftop mounted HVAC equipment when possible. | |||
___ | Buildings over 1 story should have an internal roof access means through a manufactured roof hatch. | |||
| Use of asphaltic and wood shingles and shakes in tropical climates shall be fungus resistive and wood shall be pressure treated. | |||
When reroofing, provide field investigation of existing roof and deck construction and conditions. Identify existing materials and test suspect roofing materials for asbestos. Insure existing materials are suitable and compatible with proposed roof system. | ||||
___ | Outline specs provided for all required sections. |
100% Draft Construction Documents (DBB) or 100% Draft Design-Build Construction Documents (DB)
___ | Required deliverables submitted. | |||
Specify modern and proven technology as used in torch down and adhesive type modified bitumen systems. | ||||
| Specify manufacturers that have a proven product record of 20-30 year service life without manufacturer's alterations to the material during that time span. | |||
Specify roof assemblies as a complete system to include insulation, cover board, membrane and miscellaneous accessories. | ||||
| Specify mechanical fastening of roof system for all nailable deck. Use adhesive for non-nailable decks per membrane manufacturer's requirements. | |||
Specify fastener nailing pattern of roof insulation, cover board and base sheet when using mechanical fasteners to deck. | ||||
___ | Specify cover board with a hard durable impermeable surface with fire resistance properties. | |||
___ | Specify roof drain strainer to be manufactured from iron. | |||
___ | Specify use of pressure-treated wood blocking and nailers. | |||
| Specify contractor compliance with FM Loss Prevention Data Sheet 1-49 recommendations concerning edge flashing design details. | |||
___ | Specify minimum 18 gage metal for perimeter edge or fascia strips. | |||
Specify and show manufactured 2-piece counterflashing, removable coping systems, roof edge/fascia systems to aid in future reproofing. | ||||
___ | Specify and show perimeter edge metal flashing on steep roofs. | |||
___ | Specify the appropriate underlayment for steep roofing system. | |||
___ | Specify opened or closed valleys for steep roofing. | |||
___ | Specify and show eave cant for slate, concrete and tile roofing. | |||
___ | Specify public and visitor safety requirements. | |||
___ | Specify limits on odors, noise and dust during roof applications. | |||
| Specify in project closeout that a permanent sign be affixed near a roof hatch or provided to the government indicating the type of roof membrane used, the installer, the date of expiration of the warranty and emergency telephone number. | |||
___ | Specify final inspection of the roof by the roof manufacturer. | |||
___ | When possible, specify a full system warranty for low slope roofs and leakproof warranty for steep slope roofs covering labor and materials with a no dollar limit for 15 to 20 year duration. | |||
Determine type and amount of insulation required and specify installation using double layer of insulation boards. | ||||
___ | Check deck and supporting structure for ponding deflections, located drains at mid span. | |||
___ | Roof drains coordinated with architectural, civil and mechanical drawings. | |||
___ | Primary drains and scuppers should be sumped below the roof membrane. | |||
| Show and detail primary and secondary drains and scuppers, wall and curb flashing, parapet walls, crickets and special conditions not normally detailed by the manufacturer. | |||
Show and detail all roof mounted equipment, lightning protection terminals and accessories, roof penetrations, vents, exhausts, skylights, monitors and access hatches. | ||||
| Mechanical equipment or electrical penetrations should not be located in valleys or drainage areas. Electrical conduit should penetrate equipment curb, not roof. | |||
___ | Provide a 24' minimum space between penetrations, curbs, drains, perimeter, walls, etc. | |||
___ | Crickets shall be install upslope of mechanical equipment or building features. | |||
Review need of roof expansion joints to accommodate building thermal movement, structural framing and deck changes and building configurations. | ||||
___ | Detail special flashing details to accommodate roof to wall movement. | |||
___ | Show minimum curb and wall flashing heights. | |||
___ | Show cants at 90 degree angle changes when using modified bitumen roof systems. | |||
___ | Mount mechanical equipment on raised curbs and show securement against wind forces. | |||
___ | Keep roof penetrations to a minimum by consolidation of vent pipes and exhaust vents. | |||
___ | Avoid pitch pockets whenever possible. | |||
___ | Show continuous cleat at bottom of edge or fascia strips. | |||
| Provide raised fascia edge with metal flashing at roof perimeters instead of embedded edge metal flashing. | |||
___ | Provide through wall flashing under parapet wall caps. | |||
Provide watertight membrane under coping joints, if not under the entire coping. Coping to be sloped to shed water to roof side. | ||||
___ | Show walkway pads around mechanical equipment which requires periodic servicing. | |||
___ | Determine need for ventilating the underside of roof with eave and ridge vents. | |||
___ | Determine need for ice dam protection membranes. | |||
___ | Determine need and show detail of step flashing and counterflashing at vertical surfaces. | |||
___ | Gutters shall be sloped 1/16' per foot minimum to downspouts. | |||
___ | Penetrations in metal roof shall occur in the roof pan and be designed to accommodate roof movements. | |||
| Provide details for lightening protection, satellite dishes, hatches, skylights, antennas and other penetrations. | |||
___ | Flood test waterproof membranes before backfilling or placing material upon it. |
100% Complete Construction Documents (DBB) or 100% Complete Design-Build Construction Documents (DB)
___ | Required deliverables submitted. |
___ | All review comments from 100% Draft Review satisfactorily resolved. |
Roofing and waterproofing membranes are used on decks as barriers to moisture entry into the spaces below. Both share some similar functional requirements, but others are quite different. For optimal performance it is important to understand the different loads and stresses waterproofing systems are exposed to when compared to roofing systems. Dane participated in the NRCA Manual Update Committee from 1993-1996 during the writing of the 4th edition of the NRCA Roofing and Waterproofing Manual. Dane is a former president of the Montana Roofing Contractors Association and served as president of NRCA in 2004-2005. NRCA Roofing and Waterproofing Manual. Low-slope roofing products are those primarily intended for roofs with slopes of 3:12 (14 degrees) or less. Built-up, polymer modified bitumen, single-ply, spray polyurethane foam-based and structural metal panel roof systems fit this category. Steep-slope roofing products are defined as.
Welcome to the RCABC RoofStar Roofing Practices Manual (RPM)
![Waterproofing Waterproofing](/uploads/1/2/4/3/124395212/615884994.jpg)
This is the official version of the Roofing Practices Manual and supersedes all other printed or printable versions which may be in circulation.
Painter x. The Roofing Practices Manual is the official guide for RCABC Members, Accepted Observers, consultants, architects and specification writers designing or applying roofing and Waterproofing or Water-shedding systems, and describes the RoofStar Guarantee Standards, Guiding Principles and Recommended Practices necessary to qualify for a RoofStar Guarantee. The RPM meets or exceeds the current national and provincial standards for construction and wind uplift design resistance. See the Table of Contents below, or use any of the following quick links:
- click HERE for a brief tutorial of the Roofing Practices Manual
![Roofing And Waterproofing Manual Roofing And Waterproofing Manual](/uploads/1/2/4/3/124395212/174602952.jpg)
NOTICE to Readers: This online presentation of the Roofing Practices Manual is a restructuring of its original format. All updates to the older version of this Manual have been incorporated into the present structure. Yellow highlighted text indicates a change to the Manual within the past 12 months. Watch for changes to either or both Accepted Materials and RoofStar Guarantee Standards. Highlighting remains in effect for 365 days. Consult the Technical Updates for a list of changes since 2010.
Last Update: July 15, 2020 (see Technical Updates for details)
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- How to Use the Roofing Practices Manual
- The RoofStar Guarantee Program
- Independent Observations
- Requesting and Specifying a RoofStar Guarantee
- Air and Vapour Control
- Building Ventilation
- BUR Materials
- Deck and Wall Overlays
- Design Considerations
- Eave Protection
- Fasteners & Fastening Requirements
- Insulating the Roof
- Insulation Joints and Overlays
- Membrane Surfaces
- Protected and Modified Protected Roof Systems
- Roof Classes
- Roof Decks
- Roof Plans
- Waterproofing Materials
- Water-shedding Materials
- Search by Product Category
- Search by Product Name
- Search by Manufacturer
- Search by System
- Material Criteria and Application for Acceptance
Nrca Roofing And Waterproofing Manual Online
- Wind Uplift Design
- Wind-RCI calculator
- Wind-MVRA calculator
- AARS Tested Assemblies
- PARS Tested Assemblies
- MARS Tested Assemblies
- SBS Modified Bitumen Membrane Systems
- EPDM Membrane Systems
- TPO Membrane Systems
- PVC Membrane Systems
- Hot Fluid-applied Rubberized Asphalt Systems (TBA)
- PMMA Liquid Systems (TBA)
- Built-up Roof (BUR) Systems
- Architectural Sheet Metal (ASM) Systems
- Asphalt Shingle Systems
- Cedar Shake and Shingle Systems
- Tile & Slate Systems
- Roof Maintenance
- Conversion Tables and Charts
- Metric and Standard Measurements (Symbols and Guidelines)
- Additional Standards for Materials
- Health & Safety
- Glossary
- Bibliography and References
Nrca Roofing And Waterproofing Manual
Retrieved from 'http://rpm.rcabc.org/index.php?title=Main_Page&oldid=25654'
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- Home
- About
- Contact
- Microsoft Office Download For Mac Torrent
- Adobe Photoshop Lightroom 3 Download Mac
- Chimp 2.6 Xbox Hdd Clone Tool
- Visual Basic For Applications Download Mac 2011
- Skyrim The Forgotten City Guide
- 99 Jeep Cherokee Xj Service Manual
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