GUIDE SPECIFICATIONS FOR CONSTRUCTION
OF HYDRAPRESSED SLAB ROOF PAVERS
SECTION 07760
ROOF PAVERS
LONG FORM SPECIFICATION
PART 1 – GENERAL
1.01
SUMMARY
A. This specification serves as a guideline and should be adapted to suit the needs of the
individual project by the Architect. It is prepared in accordance with the CSI threepart section format and should be included as a separate section under DIVISION 7 –
ROOF PAVERS. Improvements and other changes to the contents may be made
only with the written approval of the Architect.
1.02
REFERENCES
A. American Society for Testing and Materials (ASTM).
B. Canadian Standards Association (CSA). CSA A231.1-99
1.03
GENERAL CONDITIONS
A. As specified in Section____________.
1.04
RELATED SECTIONS
A. This section includes the following:
1. HydraPressed Slab Roof Pavers
2. HydraPressed Slab Paver Pedestals
B. Related Sections include the following:
1. Section: (edit to project requirements)
1.05
SUBMITTALS
B. Product Data: Include manufacturer’s product data sheet.
C. Shop Drawings: Include Setting Drawings showing layouts, sizes, sections, profiles,
and joint details of HydraPressed Slab Paver with HydraPressed Slab Paver support
assemblies and termination conditions.
D. Samples – For the following products:
1. Each type of HydraPressed Slab Paver
2. Each type of HydraPressed Slab Paver pedestal assembly
SECTION 07760
ROOF PAVERS
E. Installer Certificates: Signed by manufacturer, certifying that installers comply with
requirements.
1.06
QUALITY ASSURANCE
A. Installer Qualifications: Qualified installers must show successful completion of three
(3) similar sized project applications within the last three (3) years. The installer shall
assign mechanics from these earlier applications, one of whom shall serve as lead
mechanic. Installers not meeting this criteria shall require approval from the specifier
or manufacturer prior to installation.
B. Provide HydraPressed Slab Pavers that are free of cracks, seams, and defects
impairing appearance, structural integrity or function.
C. Contractor shall conform to all local, state licensing and bonding requirements.
1.07
DELIVERY, STORAGE, AND HANDLING
A. Deliver materials to project site in original packages labeled with manufacturer’s
name.
B. Store materials in a clean, dry, protected location.
1.08
PROJECT CONDITIONS
A. Environmental Limitations: Install HydraPressed Slab Pavers in accordance with
manufacturer’s instructions.
PART 2 - PRODUCTS
2.01
HYDRAPRESSED SLAB ROOF PAVERS AND PEDESTAL MATERIALS
A.
Supplied by:
Mutual Materials Co.
Tel: 1-800-477-3008
Fax: 425-454-7732
B. HydraPressed Slab name, Color(s), Dimensions, and thickness:
[
] [
] [
in./mm x
in./mm x in./mm thick.]
[
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in./mm x
in./mm x in./mm thick.]
[
] [
] [
in./mm x
in./mm x in./mm thick.]
[
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in./mm x
in./mm x in./mm thick.]
C. Meet the following required technical specifications;
1. Compressive Strength: Average compressive strength shall not be less than 8000
PSI (55 MPA) with no individual unit less than 7300 PSI (50 MPA) when tested
not less than 28 days from the date of production in accordance with ASTM C140, or CSA A231.1 – 99.
2. Flexural Strength: Average flexural (transverse) strength shall be at least
655 PSI (4.5 MPA) with no individual unit below 582 PSI (4.0 MPA) when tested
in accordance with CSA A231.1 – 99.
3. Water Absorption: Average water absorption shall not be greater than five
SECTION 07760
ROOF PAVERS
percent (5%) with no individual unit greater than seven percent (7%),
when tested in accordance with ASTM C-140, or CSA A231.1 – 99.
4. Scaling Resistance: Specimen shall not have an average loss of mass
greater than 300 g/m2 of the total inundated surface area of the individual paving
slab after 28 cycles of freezing and thawing, or 800 g/m2 after 49 cycles.
Specimen with a architectural finish shall not have an average loss of mass greater
than 500 g/m2 of the total inundated surface area of the individual paving slab
after 28 cycles of freezing and thawing, or 1200 g/m2 after 49 cycles. When
tested in accordance with CSA A231.0 – 99.
5. Dimensions: Dimensions of paving slabs, and concave or convex warpage shall
not differ from those agreed upon by the manufacturer by more than the following
amounts:
a) Length and width: - 1.0 mm to + 2.0 mm
b) Height: + 3.0 mm
c) Concave or convex warpage in one dimension by the following amounts:
i. Up to 450 mm, 2.0 mm; or
ii. Over 450 mm, 3.0 mm
Dimensions are based on manufacturer’s standard drawing for particular shape
identified.
6. Center Point Load Test of Pedestal-supported Slabs: 1,800 lbs.
D. Pedestals: Model Type
[
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PART 3 – EXECUTION
3.01
EXAMINATION
A. Examine substrates, areas, and conditions, with Installer present, for compliance with
requirements and other conditions affecting performance.
B. Verify that the roof membrane installation is completed.
C. Verify that all defects in the roof membrane have been repaired to the satisfaction of
the roof membrane manufacturer prior to installation of HydraPressed Slab Pavers.
D. Proceed with installation only after unsatisfactory conditions have been corrected.
3.02
SURFACE PREPARATION
A. Clean, prepare, and treat substrates according to manufacturer’s written instructions.
Provide clean, dust-free substrate.
3.03
INSTALLATION
A. Install “Architecturally Finished” pavers accurately aligning and maintaining uniform
spacing, with straight joints from end to end. Seat the edges of the HydraPressed Slab
SECTION 07760
ROOF PAVERS
B.
C.
D.
E.
3.04
Paver tightly against the spacing rib of the pedestal in accordance with
manufacturer’s recommendations and architectural layout.
Shim as necessary to provide support for all four corners of each HydraPressed Slab
Paver.
Install HydraPressed Slab Pavers to vary not more than 1/16” in elevation between
adjacent HydraPressed Slab Pavers or more than 1/16” variation from surface plane
elevation of any individual HydraPressed Slab Paver.
Place a 9”x9” pad of roofing sheet under each pedestal prior to placing the
HydraPressed Slab Paver on it.
Field cutting: Use power saws to cut HydraPressed Slab Pavers. Produce lines cut
straight and true, with edges eased slightly to prevent chipping.
PROTECTION AND CLEANING
A. Do not permit foot or vehicular traffic on unprotected membrane.
B. Protect roofing membrane from damage and wear during the remainder of the
construction period.
C. Clean spillage and soiling from adjacent construction using cleaning agents and
procedures recommended by the manufacturer of the affected construction.
D. In order to protect their aesthetic appearance, HydraPressed Slab Roof Pavers should
be installed as the final stage of the construction project. If this is not possible, then it
is imperative that a protective covering be placed over them until all other sub-trades
have completed their work.
END OF SECTION
SECTION 07760
ROOF PAVERS