Low Profile Raised Deck with Pedestal System: A Level Approach to Building Decks

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Dorcas Jefferson
8 years ago
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1 Low Profile Raised Deck with Pedestal System: A Level Approach to Building Decks START 1 Bison Deck Supports 2009

2 Introduction Adjustable Deck Support Systems Designed to level and elevate a variety of substrates. Adjustable deck supports provide a unique alternative to traditional deck building materials. Concrete Pavers Stone Tile Wood Tile

Adjustable deck supports provide a unique alternative to

3 Adjustable Deck Support Systems Why Design with Adjustable Deck Supports? Systems are available in a range of heights and weight bearing capacities Use on grade or above grade Impervious to water, mold, and freeze-thaw cycles Labor- and cost-efficient method of creating a flat, level deck over a sloped surface Elevate over roofing and waterproofing and not damage the surface below while protecting the substrate

Impervious to water, mold, and freeze-thaw cycles Labor- and cost-efficient method of creating a flat,

4 Adjustable Deck Support Systems Why Design with Adjustable Deck Supports? cont d For small jobs, systems can be transported on freight elevators Installers can level the deck surface while the supports are loaded Deck panels can be removed and easily replaced

5 Design Options Wood Tiles Wood tiles can be laid in a parquet or linear pattern, or mixed with paving stones for unique aesthetics

6 Plazas / Terraces Installation Options Other architectural applications of screwjack pedestal systems include pedestrian plazas and terraces. Museum of Modern Art, NYC Park Rittenhouse, Philadelphia, PA

systems include pedestrian plazas and terraces.

7 Rooftop Decks Installation Options Rooftop decks are popular and functional. Wood Tiles on Condominium Deck Westin Hotel Broomfield Co Rooftop Play Area

8 Installation Options Green Roofs Green roofs can expand usable space to include gardens and walkways. Incorporating a supported deck system can provide pedestrian access to green roofs. Botanic Gardens, Denver, CO The Visionaire, NYC

Incorporating a supported deck system can provide

9 Components Components/Grades of Adjustable Deck Supports Systems Components include adjustable pedestals, couplers, tabs, base leveler disks, and shims Adjustable Pedestal Some systems have pedestals containing thread engagement indicator bumps that warn the user when the pedestal is over-extended Couplers Tab

Adjustable Pedestal Some systems have pedestals containing thread engagement

10 Commercial Grade Components/Grades of Adjustable Deck Supports Systems Designed to support heavy pavers over any waterproofed structural surface. Commercial grade systems support approx. 1,000 lbs. per pedestal and reach additional height with added couplers

structural surface. Commercial grade systems support approx.

11 Roof Installations Project Planning Roofing systems must meet local building code and be in accordance with the NCRA practices Design must include a structural roof deck and waterproofing system that will support the loads of the deck assembly Ensure that the substrate immediately below the deck will promote positive drainage

deck and waterproofing system that will support the loads of the deck assembly

12 Installation Steps: Installation and Maintenance 1. The cavity height (the space between the top of the roofing membrane and the bottom of the decking material) determines the pedestal height requirement 2. A laser level or chalk line should be utilized to facilitate the installation process

the bottom of the decking material) determines the pedestal height

13 Installation Steps Cont.: Installation and Maintenance 3 First, determine cavity height at all thresholds, drains, and high points 4 Deduct thickness of the decking material 5 Mark a top line for pedestal elevations around deck 6 Plan deck panel and pedestal layout pattern 7 Install a T shaped portion of deck starting from threshold or high point 8 Adjust the deck tiles to the correct height and level. Continue to install on both sides of the T shaped pattern

thickness of the decking material 5 Mark a top line for pedestal elevations around deck 6 Plan deck panel and

14 FBC(HVHZ) TAS : TEST PROCEDURE FOR WIND TUNNEL TESTING OF AIR PERMEABLE, RIGID DISCONTINUOUS ROOF SYSTEMS BISON DECK TILE

15 BACKGROUND Bison Deck Tiles Unfastened Deck Tile on supports Forms a permeable, discontinuous raised deck system How to determined aerodynamic properties of this system FBC (HVHZ) TAS

16 TAS 108 Slight Modification to Accommodate Size of Deck Tile Roof System under roof tile Changed from 30/90 tile underlayment to TPO fully adhered single ply Deck Tile 3 components across the test chamber instead of 4

30/90 tile underlayment to TPO fully adhered single

17 Instrumented Tile

18 Deck System Configuration

19 PRESSURE DATA COLLECTION

20 INSTRUMENTATION

21 INSTRUMENTATION

22 WIND TUNNEL

23 WIND TUNNEL

24 VALUES DETERMINED Pressure at each tap at 70, 80, 90, 100, 110 MPH Coefficient of pressure Coefficient of lift Coefficient of moment Aerodynamic Multiplier

25 THANK YOU QUESTIONS? Donald C. Portfolio: PRI Construction Materials Technologies, Tampa, FL

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