Lockhart's Enterprises

- Specializing In -

Vinyl Waterproofing & Aluminum Railings

Quality, Affordable, Low Maintenance Decking Materials to Meet and Exceed your Decking needs.

Specifications

(1)    Substrate should be 3/4" (at minimum), T&G, APA or NPA Rated Plywood, or shall be monolithic concrete.  If using a plywood substrate, it is recommended: Exterior or Exposure 1 grade plywood, cross banded and plugged; no not use treated.

(2)    Deck surface should incorporate a slope for drainage.  1/8" minimum, to 1/4" per lineal foot.

(3)    Plywood decks should be fastened to supports with minimum 3 1/4", anti-withdrawal resin dipped nails or screws.  Fastener heads shall be driven slightly below the deck surface.  All panel edges should be slightly spaced, 1/8" to 3/16", and supported by solid blocking to prevent differential vertical displacement.

(4)    Joints and fastener head areas shell be filled prior to installation of the membrane.

(5)    Provision shall be made at the exposed edges of plywood decks.  The exposed edges shall be formed so that water does not "back-up" by capillary action under the membrane.

(6)    At junctions with vertical surfaces, the membrane should be applied up under the sheathing paper a distance of 4" to 8", or applied up the vertical surface a minimum of 4" to 8" and protected by a flashing/counter flashing arrangement or proprietary sealing system.  The flashing system must be specified in the contract.

(7)    Lap joints shall be formed and sealed as specified by the manufacturer, creating a complete water tight seal.  66 Mil is overlapped 1 1/4" to 2" and heat welded together.

(8)    Where controlled drains are provided, leaf screens should be incorporated to prevent blockage of the drainage system.

(9)    Painted or stained surfaces should be stripped of any paint or stain not compatible with adhesive.

NOTES

66 Mil is an approved roofing material for inhabited areas.

For new construction, SunFree Vinyl goes on after roof, but before doors and siding.

SunFree nor its applicator are responsible for characteristics of plywood.

SunFree nor its applicators are responsible for the deck pitch.

Even though we use on of the best polyurethane sealants available, this item requires maintenance by the property owner(s).

Petroleum based, treated, solvent or acid products, should not come into direct contact with vinyl surface.  "Green" Cedar is heavy in tannic acid.  The tannic acid in cedar is water soluble once.  Do not allow cedar to lay on vinyl surface for first water exposure.

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Last modified: 03/26/10