University of Nevada, Reno

Campus Design & Construction Standards

DIVISION 7: THERMAL AND MOISTURE PROTECTION

07000 -GENERAL

System Design and Performance Requirements

Roof slope, including crickets, for new roof construction shall be a minimum of 1/2 inch per foot. Re-roof projects shall follow the same slope standards as new roof systems. Slope variances will be considered by the University Facilities Services only for re-roofing projects where conditions mandate a lesser slope.

All roofs shall be free from mechanical equipment. Exceptions to this standard shall be approved in advance by Facilities Services. All ductwork, piping, cabling, conduit, etc. shall be in the attic or ceiling space. Proper maintenance access, lighting, and walking surfaces required.

For new construction, access to roofs with roof mounted mechanical equipment more than 40 poundsshall have one elevator and one stair that extend to the roof level. Access to roofs where there is minor mechanical equipment located (equipment with replacement weighing 40 lbs. or less) shall be provided by extending one stair to the roof level.

For new construction, access to roofs without roof mounted mechanical equipment shall have reasonable access provided with a roof access hatch, not less than 3-foot square, in an accessible location. Access hatches shall not be located in restrooms, offices or janitor closets.

In addition to other code requirements, all roofs on new building shall have one 20A electrical outlet within a 100-foot radius of all points on the roof. All roofs shall have one freeze proof hose bib within a 100-foot radius of all points on the roof.

All mechanical equipment shall be set on roof curbs; no wood sleepers will be allowed.

All roof parapet walls shall be 42 inches in height above the roof line. Where parapets are not applicable, roof fall protection/anchors/tie-off shall be provided per OSHA requirements.

Provide wood nailers and metal flashing (or an approved metal system) at the top of all parapet walls. Coping shall be minimum 24-gauge galvanized iron with 22-gaugecontinuous clips. Any alternate parapet top details shall be approved by the University Facilities Services Department.

Where lightweight, insulating, non-structural concrete is used under roofing, the deck shall be vented at not less than 1-1/2 percent of the roof area.

Foam roofing systems shall not be specified unless the scope of work is patching of an existing foam roof or is approved by the University Facilities Services Department.

The consultant’s specifications shall require the contractor to schedule and conduct a mandatory pre-roofing coordination meeting at the job site, prior to installation of any roofing. The purpose of the coordination meeting is to review requirements of the contract documents, to ensure that details are appropriate, review application procedures, coordinate related work, determine surface readiness, and discuss material storage and protection.

The general contractor, roofing contractor, roofing manufacturer’s representative, architect, the University Facilities Services Department and/or State Public Works Board’s representative as applicable, shall all attend this meeting.

No roofs shall drain or shed snow over entrances.

Shingle roofs must be six nailed and hand tabbed.

Provide ice/water shield at all valleys and perimeter of sloped roofs 2:12 and over.

Product Standards and Manufacturers

Roofing systems shall be designed to meet Factor Mutual (FM) I-90, requirements, using systems which meet FM certifications.

Roofing systems shall be designed to provide a U.L. Class “A” rated roof assembly.

The standard shingle for the University shall be a 50-year Elk laminated shingle, unless approved otherwise by the University Facilities Services Department. Color selected by University Facilities Services Department.

07500 -MEMBRANE ROOFING

System Design and Performance Requirements

Roofing systems shall be a PVC sheet in manufacturer’s standard thickness, but not less than 60 mils (not nominal thickness) and approved by the University Facilities Services Department for the State’s 20-year guarantee prior to issuance of bid documents. No private labeling of the roof membrane will be allowed. The membrane supplier/manufacturer must manufacture its own membrane. The Adopted Standards for the State Public Works Division must be followed.

Low slope roofs shall be white and must meet the requirements for an Energy Smart roof membrane EnergySmart (white), initial reflectivity of 0.83, initial emissivity 0.90, solar reflective index (SRI) of >104. Colors of sloped and /or exposed roofing must be Earth tone. Colors shall be approved by University Facilities Services Department prior to issuance of plans for bid.

Roof slopes shall be 1/2” per foot for all new buildings. Roof slopes for re-roof must meet the roof slope for new buildings unless written approval is given by the University Facilities Services Department.

Buildings shall be designed to minimize roof penetrations.

All roof curbs, including skylights, shall be a minimum of eight inches high above the finished roof and shall be located 10 feet from the roof edge. Skylights shall be protected with fall protection barriers.

All Roof Drains including overflow drains shall be covered with a cast iron (no plastic) dome.

Roof membranes shall be protected with appropriate manufacturer’s pre-approved walk pads or wearing surfaces around all sides of roof top equipment and high traffic areas. These pads must be pads from the same manufacture as the rest of the materials that are being installed, and are under the same warranty.

Provide roof expansion joints in built-up and modified roof systems as follows:

  • Where expansion or contraction joints are provided in the structural system.
  • Where steel framing, structural steel, or decking change direction.
  • Where separate wings of “L”, “U”, “T”, or similar configurations exist.
  • Where the type of decking changes; for example, where a precast concrete deck and a steel deck abut.
  • Where additions are connected to existing buildings.
  • At junctions where interior heating conditions change, such as a heated office abutting an unheated warehouse, canopies, etc.
  • Where movement between vertical walls and the roof deck may occur.

Roofs shall be flood tested 4” minimum depth at roof drain locations, for a 48-hour period and verified watertight, prior to the filing of the Certificate of Substantial Completion.

Contractor shall be required to perform flood testing on all low slope roofs.

Product Standards and Manufacturers

Only those manufacturers whose PVC products have been preapproved by the State of Nevada will be considered.

Secure Rock, as manufactured by USG, is not an acceptable recovery board for any roofing system until they have corrected their shrinkage problem, dated November 29, 2012.

All roofs shall be IBC class A, FM I-90, and UL rated.

07600 - Flashing and Sheet Metal

Metal roofs shall have all concealed fasteners, be 24-gauge material, and colors of earth tones approved by the University Facilities Services Department.

STATE OF NEVADA

UNIVERSITY OF NEVAD, RENO

Nevada System of Higher Education on behalf of University of Nevada, Reno
2601 Enterprise Road
Reno, Nevada, 89512 / / Facilities Services
Mailstop 0182
1664 North Virginia Street
Reno, Nevada 89557

Roofing System

20 Year Warranty

Building Name:Click or tap here to enter text.

Project Address, City, State:Click or tap here to enter text.

SPWD Project Number:Click or tap here to enter text.

SPWD FCA Index Number:Click or tap here to enter text.

Date of Completion:Click or tap to enter a date.

Warranty End Date:Click or tap to enter a date.

Roof Type Membrane:Click or tap here to enter text.

Roof Type Deck:Click or tap here to enter text.

Roofing Manufacturer:Click or tap here to enter text.

Address:Click or tap here to enter text.

City, State, Zip Code:Click or tap here to enter text.

Phone:Click or tap here to enter text.

Owner:University of Nevada, Reno

Address:Facilities Services- Mailstop 0182

City, State, Zip Code:Reno, Nevada, 89557

Phone:(775)-784-6514

Warranty Terms and Conditions

  1. It is hereby stipulated and agreed that the Roofing Manufacturer shall conform to all the conditions set forth herein as pertinent to a warranty (hereafter referred to as the Roofing Warranty) for the completed roofing system as specified and installed. The Roofing Warranty shall include all components from the roof deck up to the top of the roof membrane.
  2. The Roofing Manufacturer shall provide a 20-year Roofing Warranty which shall provide that:
  1. The roofing system shall be maintained watertight for a period of 20 years from the listed Date of Completion.
  2. The Roofing Contractor is a certified installer of the specified and installed roofing system.
  3. The Roofing Manufacturer, at his expense, agrees to make all repairs to the roofing system, including roof drains if supplied by the Roofing Manufacturer, as required to eliminate all leaks resulting from any cause except those causes specifically noted in the following paragraph.
  1. This Roofing Warranty shall not be applicable to damage or loss caused in whole or in part by:
  1. Acts of God, including but not limited to lightning, sustained winds exceeding 70 miles per hour, earthquake, fire, or hail storm exceeding the manufacturer’s most current published impact resistance for the roofing system specified.
  2. Vandalism, acts of war, or civil disobedience.
  3. Alteration of the roof or installation of structures, fixtures, or utilities on or through the roof without the prior written approval of the Roofing Manufacturer.
  4. Settling, warping, or other failure of the structure to which the roofing system is attached.
  5. Environmental fallout, chemical attack or use within the building, including but not limited to commercial or industrial solvents, acids, caustic fluids, oils, waxes, greases, or plasticizers.
  6. Failure by the Owner to use reasonable care in maintaining the roof.
  7. Excessive traffic (other than for periodic maintenance of the roof or roof-mounted equipment), abuse to the roofing system, or storage of materials on the roof.
  8. Acts of negligence or misuse by parties other than the Roofing Manufacturer or the authorized Roofing Contractor.
  9. Water entering onto the roof from other buildings or structures.
  10. Repairs or other applications to or on the roofing system unless performed by an authorized applicator in a manner authorized in writing by the Roofing Manufacturer.
  11. Ponding water, defined as water ponding on the roof membrane in amounts such that the water will not evaporate within 48 hours during a normal sunny, summer-equivalent climate condition.
  12. Maintenance of caulking, which shall be the responsibility of the Owner.
  1. The Owner shall provide the Roofing Manufacturer with written notice of any defect or leak in the roof and of any claim under this Roofing Warranty within thirty days of the discovery of the defect or leak. If the Roofing Manufacturer does not respond within 5 days of receipt of such notification, the Owner shall have the right to take such temporary measures as deemed necessary to protect the contents of the building without invalidating this Roofing Warranty. Such measures may include temporary patches applied by a roofing contractor approved by the Roofing Manufacturer. If there is no roofing contractor approved by the Roofing Manufacturer in the local area, the Owner may have temporary repairs made by any reputable roofing contractor. No temporary work shall be performed without prior notification and response from the Roofing Manufacturer. It shall be the Roofing Manufacturer’s responsibility to re-work any such temporary repairs as required to re-establish the integrity of the original roofing system, utilizing an authorized roofing contractor.
  2. In the case of extreme emergency situations, the Owner shall have the right to immediately implement the procedures outlined in the preceding paragraph without invalidating the Roofing Warranty. It shall be the undersigned Roofing Manufacturer’s responsibility to rework such temporary work (as described in the preceding paragraph) as necessary to re-establish the integrity of the original roof system.
  3. If there is a failure of the roofing membrane and/or of the roofing system that occurs within the duration of the warranty, the Roofing Manufacturer shall repair or replace the roofing system and pay all costs necessary to completely remedy such failure. The terms and conditions pertaining to the inspection, repair, and/or replacement of the roofing membrane and/or roofing system shall be as follows:
  1. Upon receiving notice of any failure, the Roofing Manufacturer shall visit the site within 14 days of such notice and shall submit a report of his findings to the Owner within 7 days of the visit.
  2. In any case where failures and necessary repairs involve multiple locations, and the total of the areas requiring repair or replacement exceeds 30% of the total roof area, the Roofing Manufacturer shall replace the entire roofing membrane and/or roofing system, as applicable. If such failures are concentrated in only one or two areas of the roof, the Roofing Manufacturer shall have the option of replacing the entire roofing membrane and/or roofing system, or replacing only the one or two concentrated areas, in their entirety.
  3. The Roofing Manufacturer shall replace any roofing system components that become damaged during the roofing membrane removal process.
  4. All repair or replacement work shall utilize materials that are identical to the original products.
  1. The terms and conditions of this Roofing Warranty shall become invalid if the roofing system is used in a manner or for a purpose for which it was not designed, or if any additions, alterations, or repairs (except emergency or temporary repairs) are made without notification and written approval from the Roofing Manufacturer.
  2. The Roofing Manufacturer shall not be liable for any incidental or consequential damages to the building or its contents resulting from a leak in the roofing system.
  3. The terms and conditions of this Roofing Warranty shall be in lieu of all other warranties expressed or implied.
  4. The Roofing Manufacturer’s signature on this Roofing Warranty shall serve as certification and agreement that the roofing system (including walk pads) is installed as required by the Roofing Manufacturer and that the roofing system will be fully warranted as installed.

Roofing Manufacturer Signature

Print Name: ______

Signature: ______

Title: ______

Date: ______

END OF DIVISION 7

THERMAL AND MOISTURE PROTECTION

Facilities Services DepartmentPage 1 of 9

Revised July 2018Section 4.0 Construction Materials Standards

Division 7 Thermal and Moisture Protection