Flex TPO PLUS ROOF Для дома Adhered Systems User Manual

Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533 Tel: [phone] Fax: [phone]

FLEX TPO PLUS

ROOF MEMBRANES ADHERED SYSTEMS

Approved Substrates and Deck Requirements

The following roof decks/substrates are approved for the installation of Flex TPO Plus adhered roof
systems in areas where the average wind speeds are equal to or less than 55 mph and the height of the
building does not exceed 250’.

1. Steel Decks 22 gauge or heavier with a minimum pullout resistance of 360 pounds per
fastener.

2. Steel Decks lighter than 22 gauge with a minimum pullout resistance of 300 pounds per fastener.

3. Structural Concrete minimum compressive strength 3000 psi., with a minimum pullout resistance
of 800 pounds per fastener.

4. Wood Plank (3/4” min.), CDX Plywood (15/32” min.) with a minimum pullout resistance of 360
pounds per fastener.

5. OSB (oriented strand board) min. 7/16” thick with a minimum pullout resistance of 250 pounds
per fastener.

6. Gypsum Deck with a minimum pullout resistance of 300 pounds per fastener.

7. Cementitious Wood Fiber Deck with a minimum pullout resistance of 225 pounds per fastener.

8. Lightweight Insulating Concrete with a minimum compressive strength of 225 psi.

The following roof decks/substrates are approved for direct application of the Flex TPO Plus adhered roof
systems.

NEW CONSTRUCTION:

1. Structural Concrete with a minimum compressive strength 3000 psi.

2. Lightweight Insulating Concrete with a minimum compressive strength of 225 psi. Flex Insulvents
are required to be installed at a minimum of 1 vent per 2000 square feet of roof area except on
installation where the lightweight insulating concrete was poured over a slotted steel deck.

3. Plywood (min. 15/32”) or OSB (min. 7/16”)

4. Gypsum

RE-ROOF/RECOVER:

1. Existing Smooth Surface Built Up Roof

2. Existing Built Up Roof with a Mineral Surface Cap Sheet

3. Existing Modified Bitumen Roof

Note: Direct application of the Flex TPO Plus Adhered Membrane over existing BUR or Modified
Roofing may result in discoloration of the membrane. Installations that are aesthetically critical should be
installed over an approved cover board.

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RE-ROOF/TEAR OFF TO ANY DECK:

1. Approved Flex ISO Insulation Board

2. Approved DensDeck Cover Board

3. Approved USG Securock Cover Board

4. Approved OSB Board

INSULATION SECUREMENT:

Structural Concrete, 22 gauge or heavier Steel, and 3/4” min. thick wood plank.
Insulation Board placed in a single layer or as the top layer and attached to the deck.

1. Flex ISO 1 ½” thick - 10 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

2. Flex ISO 2” thick - 8 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

3. DensDeck 1/4” or 1/2” thick - 12 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

4. DensDeck 5/8” thick - 8 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

5. Securock 1/4" or 1/2" thick - 12 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

6. Securock 5/8” thick - 8 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

7. OSB Board - 17 Flex Fasteners and 3” Insulation Plates per 4’x 8’ Board.

All other approved insulation or cover boards require attachment to the deck at a minimum rate of 1 Flex
Fastener and 3” Insulation Plate per 2 square feet or 16 fasteners per 4’x 8’ board.

OPTIONAL INSULATION SECUREMENT:

Approved Insulation Board may also be adhered to the appropriate substrates by the following
components.

1. Hot Steep Asphalt

2. Flex OlyBond Adhesive

RE-ROOF/RECOVER:

Prior to installing insulation or cover boards, the existing roof covering must be prepared in the following
manner.

1. Existing Gravel Surfaced BUR. Power Broom surface to remove all loose gravel. Existing roof
material must be inspected and all wet material removed and replaced with new insulation.

2. Existing Single Ply Membrane. Slice the existing membrane into sections no larger than 10’ x 10’.

3. Spray on Polyurethane Foam. Remove existing roof covering completely to structural deck.

Contact Flex Technical Service for information regarding the installation of Flex TPO Plus adhered roof
systems in areas where the average wind speeds are greater than 55 mph and the height of the building
exceeds 250’.

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