Vantage Point: More Than Just a New Roof -- It's a New Look!
|
BEFORE |
AFTER |
|
|
|
|
|
|
Berridge VANTAGE POINT reroofing system combines a new aesthetic look with simple mechanical attachment over existing flat built-up roofs that will last for years to come. VANTAGE POINT is more than just a patchup or a re-roof solution; it is a permanent new roof with a new higher profile which gives your old building a totally new look. The sloped, light weight, self supporting metal panels need no substrate, thus avoiding extra weight and cost. They provide a watertight standing seam that sheds water in contrast to dated, flat built-up roofs which are subject to water ponding and subsequent leakage.
Economical Installation‘ͺ
No Tear-Off Required!
Two High-Quality Structural/Architectural Panel to Choose From
The ZEE-LOCK or CEE-LOCK architectural/structural standing seam roof systems.
Standing Seam Metal Roofs / Commercial / Residential / Request Info / Contact Us / Home Page
Single-Source Convenience:
The installer orders all necessary coil material & components and all pre-cut retrofit roof system framing members from Berridge.
|
TYPICAL VANTAGE POINT RETROFIT ROOF ASSEMBLY |
|
|
A Retrofit Design Checklist for Architects & Designers:
Roof Design:
Low slope to steep mansard profile. Intersecting planes such as hips, dormer and valleys should be kept to a minimum.
Penetrations:
Minimize penetrations such as skylights, curbs for roof-mounted heating or air-conditioning units, etc.
Thermal & Mechanical Considerations:
Insulation:
The space between the old and new roof allows for low cost, blanket insulation to greatly reduce heating and cooling costs.
Vapor Barrier (if required):
A vinyl vapor barrier on the underside of the blanket insulation avoids condensation from the building penetrating insulation and reaching the framing system and roof panels.
Mechanical Equipment:
Any existing and new mechanical equipment should be located at ground level to reduce penetrations.
Ventilation:
The new attic space can be vented with ridge vents or louvers.
Thermal Movement:
Accomodated at the eaves and with inner rib expansion joints.
VANTAGE POINT SPECIFICATIONS
(To use in your document, select all text, copy <CTRL-C> and paste <CTRL-V>)
SECTION 07610
A.
Section Includes: Preformed and
prefinished metal roofing panels, fasteners, clips, perimeter and penetration
flashings, closures, insulation, sealant, gutters, seam caps, trim, vapor
barriers, expansion joint covers, Retrofit Roof structural subsystem open web
framing members, including cold-form track, C-Channel, Framing Sections, Purlins
and miscellaneous accessories required to complete the retrofit framing and
roofing enclosure as indicated by Contract
Documents.
B.
Section 05500: Miscellaneous metal
fabrication.
C.
Section 06100: Rough Carpentry.
D.
Section 07631: Flashing and Sheet Metal
Gutters.
E.
Section 07900: Sealants.
1.03
REFERENCES
2. A525: Standard Specification for General
Requirements for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip
Process.
3. A792: Specification for Steel
Sheet, Aluminum-Zinc Alloy-Coated by the Hot-Dip
Process.
4. E283: Test Method for Rate of Air Leakage Through
Exterior Windows, Curtain Walls, and Doors.
5. E330: Test Method for Structural Performance of
Exterior Window, Curtain Walls, and Doors by Uniform Static Air Pressure
Difference.
6. E331: Standard Test Method for Water Penetration of
Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure
Difference.
2. Panels, Cleats and other
components required for specific project
conditions.
2. Retrofit Roof Framing
Structural Subsystem, composed of cold-formed track, c-channel, purlins, framing
members and hat sections, designed in accordance with necessary live, wind, dead
and existing structural requirements.
4. Manufacturer is responsible
for providing evidence acceptable to Architect that Manufacturer‘―s specified
roof system is capable of meeting thermal, wind uplift, and performance
requirements specified.
2. Interface between panel
and expansion clip shall provide for applicable thermal movement in each
direction along the longitudinal direction.
3. Location and sizes of
metal roofing rigid connectors shall be as indicated on engineer‘―s
certification and located on shop drawings.
2. Panel Clip Requirements: Connection of panel anchor clips to purlins
shall be designed to resist loads developed by pressures with proper regard for
prying forces and/or bending due to eccentric loading. Performance shall be
evaluated at extreme positions of thermal movement. A 1/3 increase in allowable
load is permitted for wind pressures. Allowable stresses for design shall be in
accordance with specifications in AISI ‘°Cold Formed Steel Design Manual‘±;
factor of safety on testing of connections shall be
2.5.
3. Deflection Limits:
Installed roof system, including framing and deck, shall carry positive uniform
design loads with maximum system deflection of L/240 as measured at rib (web) of
panel.
2. Completed metal roof
system, including vapor barrier, shall have maximum static pressure air
infiltration of 0.02 cfm/square foot with 6.24 psf air pressure differential
when tested in accordance with ASTM E283.
3. No measurable water
penetration (dynamic pressure), other than condensation, when exposed to dynamic
rain and at 6.24 PSF air pressure differential for not less than fifteen minutes
duration, when tested in accordance with ASTM E331.
4. Calculated pull-out
capacities for purlins and fasteners shall be certified by registered
professional engineer. Minimum safety factor for anchoring fasteners into metal
shall be 2.35. Minimum safety factor for anchoring fasteners into concrete shall
be 4.0.
5. Entire roofing system (metal
panels, flashings, expansion joints, and retrofit roof structural subsystem),
are to be detailed to provide weathertight roof under peak weather
conditions.
2. Include metal thicknesses and
finishes, panel lengths, joining details, anchorage details, flashings and
special fabrication provisions for termination and penetrations. Also indicated
purlins and clip locations, cold formed open web framing members, thermal expansion provisions, and special
supports. Submittal shall include manufacturer‘―s written comments, all fastener
descriptions and spacings, sealant description and locations, bend radii, metal
thicknesses, and other pertinent information.
3. Indicate relationships with
existing roof structural framing.
4. Distinguish between factory
and field assembly work.
5. Submit erection drawings
showing proposed sequence of laying panels. Provide manufacturer‘―s instructions
for storage, handing, and installation, and their standard construction details
for conditions on this Project..
6. Shop drawings must be
submitted and returned as acceptable prior to beginning field or factory
fabrication.
b. Empirical calculations for roof panel and
clip-to-panel performance will not be accepted.
b. Each prequalified manufacturer shall
provide complete and current data for specified roof system as
follows:
2) Uniform ultimate wind uplift load capacity
test for metal roof panels as specified.
3) Ultimate pull-out capacity for panel
clips, tested as specified.
4) UL 90 Classification test data as
specified.
5) Model Load Test per ASTM 330
Modified
6) Static air infiltration resistance test
data as specified.
7) Water penetration test data as
specified.
8) Purlin and fastener pull-out calculations
as specified.
b. Include initial report, progress reports,
and final report.
c. Submit letter of certification from
manufacturer that roof installation is in accordance with shop drawings and
manufacturer‘―s requirements, and that entire roof installation will be issued
specified Watertightness Warranty.
1.06 QUALITY
ASSURANCE
b.Architect will determine
acceptability of installer prior to award of
Contract.
3. Installer must have
successfully completed minimum of five (5) significant installations of
preformed metal roofing systems, including installation of long, field-formed
panels. Submit complete description of each previous project, including name and
phone numbers of representatives of the Owner, Architect, Manufacturer, and
Contractor.
4. Submit name and resume of
installer‘―s proposed job superintendent, including list of similar projects
completed by superintendent.
5. Architect reserves right to
inspect fabrication facilities of installer in determining
qualifications.
6. Installer must execute 100% of
metal roof system installation with installers own
employees.
2. Other trades involved in or
affected by installation of metal roof system shall
attend.
3. Advise Architect of scheduled
meeting dates minimum of three (3) days in advance.
4. Review progress of other
construction activities and preparations for particular activity under
construction at each pre-installation conference.
5. Record significant discussions
and agreements/disagreements of each conference, along with approved schedule.
Distribute record of meeting to everyone concerned, promptly, including Owner
and Architect.
6. Do not proceed if conference
cannot be successfully concluded. Initiate whatever actions are necessary to
resolve impediments to performance of Work and reconvene conference at earliest
feasible date.
C.
Provide protective interleaving between contact areas of exposed surfaces
to prevent abrasion during shipping, storage and
handling.
F.
Handle materials to prevent damage to surfaces, edges and ends of roofing
sheets, sheet metal items and substructural framing members. Damaged material shall be rejected and
removed from site.
2. Do not overload roof with
stored materials.
3. Support no roof-mounted
equipment directly on roofing system.
1.08
SCHEDULING
2. Will not chalk in excess of
numerical rating of 8 when measured in accordance with standard procedures
specified in ASTM D 659-74;
3. Will not peel, crack, chip or
exhibit any other mechanical failure of paint to adhere to the
substrate.
B.
Provide Watertightness Warranty executed jointly by the roof system
manufacturer and installer which warrants the installed system to be free of
leaks and free from defects in materials and workmanship for a period of twenty
(20) years from date of substantial completion of roofing
project.
1.10
SUBSTITUTIONS:
PART 2: PRODUCT
2.01 ACCEPTABLE
MANUFACTURERS
2.02 SHEET
MATERIALS
2.03 STRUCTURAL
SUBSYSTEM FRAMING MATERIALS
2.04 ACCESSORY
MATERIALS
2.04
FABRICATION:
2.05 PREFORMED
METAL ROOFING SYSTEM:
2. Panels shall be site-formed
with the Berridge Model SP-21-X Portable Roll Former in continuous lengths from
ridge to eave or factory-formed in continuous lengths (maximum
40'-0")
3. Continuous Zee Rib shall be
1-3/8" wide and 2-1/8" in height. Rib
shall be connected to purlin with two #12-14 x 1" self-drilling/tapping fasteners [Zee Clips
spaced at 3'-0"].
4. Optional Vinyl
Weatherseal (U.S. Patent 5134825) to be
factory-installed over Continuous Zee Rib.
5. Sidelap to be machanically
seamed with a powered seamer.
6. When required, panel assembly
to bear Underwriters Laboratories Label
UL90, pursuant to Construction Number 312
for open framing conditions, either uninsulated or with blanket
insulation; 335 or 335 (mod.) with rigid board insulation or 403 over solid
substrate and applicable Fire Ratings.
7. Certification shall be
submitted, based on independent testing
laboratory, indicating no measurable water penetration or air leakage through
the system when tested in accordance with ASTM E-331-86 and
E-283-84.
2. Standing seam to be of an
interlocking, ‘°snap-lock‘± design.
3. Panels shall be site-formed
with the Berridge Model CL-21 Portable Roll Former in continuous lengths from
ridge to eave or factory-formed to
maximum 40'-0".
4. Continuous Cee Rib to be
1-3/8" wide and 2-1/8" in height. Rib
shall be connected to purlin with two #12-14 x 1" self-drilling/tapping fasteners [Cee-Clips at
3'-0" max.].
5. Optional Vinyl
Weatherseal (U.S. Patent No. 4641475) to
be factory/machine-installed over Continuous Cee Rib.
6. When required, Panel assembly to bear Underwriter‘―s Laboratories
Label UL90, pursuant to Construction Number 334 and applicable Fire
Ratings.
7. Certification shall be submitted, based on independent testing laboratory, indicating no measurable
water penetration or air leakage through the system when tested in accordance
with ASTM E-331-86 and E-283-84.
C.
Batten Seam Roof System:
2. Panels shall be site-formed
with the Berridge model BP-21 Portable Roll Former in continuous lengths from
ridge to eave or factory fabricated to 40'-0" max.
3. Snap-On Battens shall be 2"
wide and 1 3/4" in height.[Nominal installed height of 2"]. Battens shall be
roll-formed.
4. Attachment to structural
supports with 3-1/2" Cadmium Plated screws through the hidden Batten Clip and
the top crown of the Deep Vee Panel. Maximum spacing 50" on center for open span
structural supports.Intermediate Batten Clips attached through the top crown of
the Deep Vee Panel, 20" on center maximum with
#10 x 3/4" TEK screws.
5. Attachment to solid sheathing
shall be with 3-1/2" long ring shank
Galvanized roofing nails through the hidden
Batten Clip and the top crown of the Deep Vee Panel spaced 20" on
center.
6. Two Batten Clips shall be used
at the eaves and on both sides of the miter at change of
slope.
7. When required, panel assembly
shall bear Underwriter‘―s Laboratories Label UL90, pursuant to Construction
Number 262.
D. Concealed Continuous Anchor
Ribs:
1. Standing seam metal roof
shall be fastened to framing members with concealed anchor ribs of minimum G-90
galvanized steel or stainless steel or other properly coated metal of adequate
strength and wear resistance to meet or exceed minimum performance requirements
of this specification.
2. Ribs shall accompany panel
movement in each direction along longitudinal direction to adequately
accommodate temperature differential and panel movement for this
Project.
3. Manufacturer shall design
fastener device and spacing of fasteners to maintain required wind uplift
resistance at connection.
2. Exposed rivets shall be
self-plugging type minimum 3/16" diameter 300 series alloy stainless steel with
stainless steel stems. If located where drainage from possible head leakage does
not pass to interior, seal washers are not required, other wise, use EPDM
washers under the heads.
3. Concealed fasteners shall be
#12 size to meet pullout requirements in specific thickness of support
material.
4. There shall be no exposed
fasteners except to fasten flashings, at fixing points, or as indicated on the
drawings.
2. Factory-applied sidelap
sealant: Non-drying non-skinning,
synthetic polymer-based, designed for metal-to-metal concealed joints. Spectrum
1 by Tremco or equal.
2.06
FABRICATION:
2. Provide pans in full lengths
from peak to eave as indicated.
3. Transverse or endlap seams
will not be permitted.
4. Design panels to use concealed
fasteners. Exposed fasteners in roofing pans will not be
permitted.
5. Standing seam must prevent
water capillary action, or otherwise prevent water
infiltration.
6. Examine panels as they are
formed to ensure panels are being formed within acceptable
tolerances.
A.
Examine alignment of roof structure retrofit structural framing subsystem
before proceeding with installation of preformed metal
roofing.
B.
Examine metal roof deck before starting installation. Deck must be clear,
clean and smooth, free of depressions, waves, or projections, dry and must
remain dry and free of ice and snow, after roofing application commences. Deck
flutes must be clean and dry.
2. Ensure felt installed
horizontally, starting at eave to ridge with a 6" minimum
overlap.
3. Ensure that all fasteners are
totally flush with the substrate.
3.02
INSTALLATION:
2. Isolate dissimilar metals and
masonry or concrete from metals with bituminous coating. Use gasketed fasteners
where required to prevent corrosive action between fastener, substrate and
panels.
3. Limit exposed fasteners to
extent indicated on shop drawings.
4. Anchorage shall allow for
temperature expansion and contraction movement without stress or elongation of
panels, clips, or anchors. Attach clips to structural substrate using fasteners
of size and spacing as determined by manufacturer‘―s design analysis to resist
specified uplift and thermal movement forces.
5. Coordinate flashing and sheet
metal work to provide weathertight conditions at roof terminations. Fabricate
and install in accordance with standards of SMACNA Manual using continuous
cleats at all exposed edges.
2. Install Retrofit Hat Section
Purlins, spaced as indicated on plans.
C.
Preformed Metal Panels:
2. Verify with manufacturer
locations of fixed connections and expansion
connections.
3. Roll form panels on site with Portable Roll Former in continuous, eave
to ridge lengths. Take care to properly support long panels (support at max. 6'
intervals).
4. Install starter and edge trim
before installing roof panels.
5. Remove protective strippable
film prior to installation of roof panels.
6. Install panels to either
Continuous Clips per manufacturer‘―s
details.
7. Vinyl Weatherseal is factory-installed on Continuous
Clip.
8. Seam Panel sidelaps using
power-driven Seamer as recommended by manufacturer to ensure
watertightness.
9. Erect metal roofing with
lines, planes, rises and angles sharp and true, and plane surfaces free from
objectionable wave, warp, dents, buckle or other physical defects with minimum
oil canning.
10. Do not allow traffic on
completed roof. If required, provide
cushioned walk boards.
11. Protect installed roof panels
and trim from damage caused by adjacent construction until completion of
installation.
12. Remove and replace any panels
or components which are damaged beyond successful
repair.
2. Conceal fasteners and
expansion provisions wherever possible.
3. Fold back edges of concealed
side of exposed edge to form hem.
4. Insert metal flashings into
reglets, anchor with fasteners and wedges and seal
joints.
5. Set sheet metal items level,
true to line, and plumb.
6. Secure to wood with
screws.
7. Set metal already partly
formed in place and fasten to by means of cleats.
8. Use cleats to keep laps closed
when face width exceeds 8" for 24 gauge steel.
A.
Tolerances:
2. Retrofit Roof Structural Roof
Structural Subsystem are designed for minimum roof slope of 1/2:12 (refer to
roof plans for areas and slope).
2. Jointly examine roof structure
with installer prior to beginning roof
installation.
3. Manufacturer‘―s
representative shall be present during initial layout and installation of
roofing system. Observe minimum of initial one week period of roof panel
installation on daily basis, ensuring installer follows manufacturer‘―s
installation recommendations and shop drawings. Observe initial forming passes
for fabrication within acceptable tolerances.
4. Visit Project site minimum
bi-monthly for duration of installation period.
5. Examine completed
installation for conformance to shop drawings. Notify installer and Contractor
in writing of discrepancies.
A.
Clean exposed surfaces of work promptly after completion of installation.
To prevent rust staining on finished surfaces, immediately remove filings
produced by drilling or cutting.
3.04 FINAL
INSPECTION
Stratton and Sons Roofing
201 Old Warner Rd.
P O Box 127
Bradford, NH 03221
Phone (603) 938-2648
Fax (603) 938-2247
Standing Seam Metal Roofs / Commercial / Residential / Request Info / Contact Us / Home Page
