Page 16 - Vi-LUX Building Products PVC Moulding & Trim Solutions
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Use standard,  at-head, stainless steel wood screws, at least #6, long enough to penetrate substrate by at least 1". Use drill bits designed for wood or metal. Slightly countersink screws and  nish holes.
Cladding and trim are not meant to be watertight barriers. Before you install any cladding materials or trim,  ash all openings so that they shed water to exterior of the cladding and trim materials.
1. Install  ashing along the bottom of the opening. The width of the  ashing must extend beyond the width of the trim being installed. Be sure the bottom  ashing is long enough to direct water over the cladding material.
2. Install  ashing along each side of the opening. Be sure to overlap the bottom  ashing. The width of the  ashing must extend beyond the width of the trim being installed.
3. Install the top  ashing by overlapping the tops of the side  ashing.
4. To install the trim, miter the joints and use a PVC adhesive to adhere the joints. Fasten the trim to the substrate on both sides of the miter. Use at least two fasteners per board.
5.For best results, create a scarf joint by cutting a taper on the end of the trim pieces. Gluing the joints between the trim pieces will help eliminate separation caused by expansion and contraction. Place fasteners either through the scarf joint or on both sides of the scarf joint. This will help minimize expansion and contraction.
Vi-LUX mouldings and trim can be easily bent to accommodate curved applications. Convection air- circulating ovens, strip heaters or radiant heaters can be used. Apply heat evenly to all sides until product is  exible. Oven times will vary depending on the size and density of the pro le.
To bend Vi-LUX mouldings and trim
1. Control the temperature of the
surface and the amount of time
the material is heated – the
surface temperature should not exceed 300°F for more than 10 minutes.
2.To guarantee uniformity, gradually increase the temperature and heat all sides of the material simultaneously.
3.In general, heating time is about 3 minutes for each 1⁄4" of thickness of material. When the trim’s shape is irregular or the heat is not uniform, heating times may be longer. Heating times will also differ depending on oven design.
4.Apply the heat evenly until the trim becomes  exible and easy to form.
5.Take care not to overheat the material, as overheating can produce a rough texture and discoloration.
6.When you bend textured cellular PVC, the wood grain may distort depending on the radius of the bend.
7. Once the moulding/trim is heated, remove and put into a  xture or a jig to hold the  nished shape while cooling is taking place. Cooling can be accomplished with fans or compressed air.
Take care when handling heated materials, as hot PVC can produce severe burns. Wear protective gloves that are thick enough to avoid burns.
16 Vi-LUX BUILDING PRODUCTS INC. 105 Richmond Boulevard · Napanee, Ontario K7R 3Z8 Canada

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