CARE, HANDLING & STORAGE OF PW PRODUCTS
PW products should be handled in the same manner as fine finish lumber, which can warp out of shape if not stored in a flat, straight, dry condition before installation. Please follow all PW guidelines carefully.
Provide clear delivery truck access to the desired off-loading site.
Provide assistance unloading large deliveries and materials requiring more than one person to handle safely and efficiently.
Perform a thorough product inspection and inventory confirmation at the time of delivery.
PW will not be responsible for material defects once the products are installed.
CARE, HANDLING & STORAGE GUIDELINES
- Wash hands thoroughly before handling.
- Exercise care not to mar finish surfaces when unpacking delivered products.
- If re-stacking, replicate original packing conditions as closely as possible, including the use of all protective padding materials.
- When carrying long, flat-stock lengths, sudden uplifting from near the center point may cause the material to snap.
- DO NOT lean profiles vertically against a wall, as this can cause permanent warping and/or compression cracks in the finish surface.
- Always store profiles in a flat, dry, clean, above-ground location protected from harsh sunlight, rainfall, snow, ground moisture and job site contaminants.
- Stack all PW materials straight and flat. Any twisting or bowing of stacked materials can become permanent.
- Fragile fabrications, like arches, must be well secured to flat, rigid panels until ready for installation.
- Keep products well protected from all water sources to ensure the driest possible surface for adhesive and sealant adherence.
- Protect PW shapes from freezing and excessive heat prior to and during installation. DO NOT store under tarps in direct sunlight.
- Use only non-staining packaging or covering materials when storing or protecting PW products. Standard cardboard can cause stains when wet.
- Respect Murphy’s Law. Store fragile, easily damaged materials in a secure place.
- To ensure crisp, clean saw cuts, a separated-tooth diamond tipped or masonry saw blade is highly recommended.
- Avoid contact with solvents, oils, grease, paints & stains.
- ALL PW INSTALLATION INSTRUCTIONS MUST BE CAREFULLY FOLLOWED TO PRESERVE YOUR PRODUCT WARRANTY.
Patterson Whittaker products are designed to be installed by crafts-persons with basic carpentry, plastering, or masonry skills and require only common tools and equipment.
Please take the time to thoroughly review all available care, handling and installation documents and confirm that site conditions, design layouts, and PW products are correct. Resolve any questions or problems before proceeding!
- Obtain all necessary permits.
- Observe all applicable building regulations for this type of product.
- Have necessary insurance coverage in force before performing the work.
- Follow the project’s construction documents, such as architectural drawings, specifications, addenda, correspondence and other related information.
- Observe PW’s policies, including these specifications and any related documents applicable to PW profiles and/or the project.
- Observe PW’s instructions for methods of attachment of the shapes and for the interface between the shape, substrate and adjacent materials.
- Variations from PW’s standard guidelines for the methods of attaching or detailing the shapes must be obtained from PW or its authorized agent, in writing, prior to installation.
Attachment surfaces must meet the following requirements:
- Clean, dust, and efflorescent-free.
- Above grade.
- Dry prior to installation and to remain dry for 24 hours.
- Temperature above 40ºF and to remain so for at least 24 hours.
- Must not be painted, sealed or stained.
- Must not contain waterproofing coatings or release agents.
- Should be smooth and flat, within 1/8” per 4’, when measured in any direction with a 4’ straight edge.
If substrate contains structural seams, such as expansion joints, PW shapes should also be jointed at such locations. Shapes may be installed over most surface control joints, but your architect or building envelope specialist should be consulted for verification.
Applied materials must not be subject to strong motion, vibration or wind forces while the adhesive is setting.
The wall assembly, of which the substrate is a part, must be a code-compliant wall of its own right, including adherence to such basic properties as structural integrity, durability, fire and weather profaneness.
The following exterior surfaces are acceptable:
- Unit masonry
The following interior surfaces are acceptable:
- Dens-Glass Gold
- Exterior Grade Gypsum Sheathing
- WR and MR board
- Any of the above outdoor wall surfaces.
Finish products have manufacturing tolerance variations up to 1/8” for any given dimension. Coating thicknesses may also vary.
PW stucco, paint and interior grade finishes may have minor blemishes and surface cracks requiring touch-up before final coating.
PW stone finish products contain mineral aggregates with natural variations in both color and grit size. While great care is taken to attain uniformity of color and texture, variations often exist, even within the same batch mixture.
SPECIAL LIABILITY NOTICES
Patterson Whittaker will not be responsible for material defects once the product is installed. Inspect shapes for damage, including straightness, color, texture, profile shape, dimensions, quantity, etc. Do not begin installation if damaged, or if products do not otherwise meet your desired standards.
Patterson Whittaker profiles are not intended for use as a primary weather barrier. PW profiles are meant to add aesthetic appeal as applied ornamental pieces only. To prevent moisture intrusion at windows, doors and other penetrations, flashing and caulking may be necessary behind, above, adjacent to, and below our profiles. See your contractor or building envelope specialist for specific details.
PW profiles are non-structural. Do not attach objects to our products. This especially includes the securing of hardware or other materials by screwing into or bolting onto the PW shape.
When storing, handling and working with PW profiles, the following must be observed:
- Read and follow the instructions that come with the material, product or equipment being used, including operating instructions and MSDS sheets.
- Observe applicable regulations (local, federal, state, county and city) for use of products and equipment.
- The core of the shape is foam plastic (EPS) and is combustible, Do not expose to fire, open flame, welding or other heat producing devices. Laboratory testing data is available upon request.
- Be especially careful when using cutting devices. Always wear safety goggles.
- The process of cutting shapes creates moderate dust. Wear appropriate devices to prevent inhalation.
- Protect adjacent building materials, people, pets, furniture, shrubbery, cars, etc. from damage during the profile installation process.
- Some shapes can be heavy. If they fall or otherwise impact objects or people, they can cause damage or injury. This can occur while shapes are being stored, handled, cut or installed, including the period during which the attachment adhesive is setting.
- PW installation clips have very sharp prongs which can cause injury. Please follow all provided instructions carefully to ensure installers, co-workers and other job site visitors are well protected at all times.
EXTERIOR STONE FINISH INSTALLATION PROCEDURES
BASIC TOOLS REQUIRED
The following tools and equipment are recommended for typical installations:
- Compound miter saw (12″ compound miter slide saw with 12” segmented diamond blade is ideal)
- Extension cord 4′ x 8′ assembly table.
- Safety glasses, dust mask & other typical jobsite safety equipment
- All necessary scaffolding and/or ladders
- PW approved adhesive caulking
- Caulking gun
- 2′ “L” square
- Tri Square
- Large blade utility knife, with blades
- Chalk line
- Carpenter pencil
- Tape measure
- Clean soft cloth, mild soap, stiff nylon brush & water bucket for clean-ups
Optional extra tools:
- Hot glue gun and glue sticks. (Ask PW for recommended brand and sourcing)
- Hand saw
- 3 1/4″ galvanized nails
- 1 1/4″ galvanized roofing nails
- Fine grit sandpaper or sanding block (60 grit recommended)
- Tarps or plastic sheeting for weather protection and dust containment
- 1/2” x 2” notched trowel (for hand-mixed adhesive applications, like Primus)
An “outside-to-inside” installation sequence helps assure level and symmetric assemblies. For window openings, PW factory-mitered outside corners and return sill ends should be installed first. Infill segments can then be cut from linear stock and inserted afterward. Experienced tradesmen use carefully applied chalk lines or flat bar leveling guides to ensure square and level installations.
PW stone finish products have slight natural color and texture variations. Care should be taken to randomly select segments for installation to help achieve a pleasing visual color and texture balance.
PW materials are remarkably durable and require very little maintenance.
Please observe the following guidelines when caring for your architectural details:
PW STONE FINISH PRODUCTS
Remove surface scuff marks by spot cleaning with biodegradable soap and a stiff nylon brush.
Periodically inspect materials to ensure all sealant and grout joints are intact; repair as required.
PW PAINT GRADE PRODUCTS
Because our paint grade products contain a special formulation that creates an actual chemical bond with acrylic-based paints, PW materials can provide years of added life over typical painted wood trim applications.
PW paint grade materials should be cleaned in the same way as any painted surface, which is generally with a cloth or soft brush and biodegradable soap.
Never clean PW materials with a pressure washer.
Avoid contact between PW products and stains, grease, oils, and solvents of any kind.
PW profiles are non-structural. Do not attach objects to our products. This includes securing hardware or other materials by screwing into or bolting onto the shapes.
Take care to maintain all weather-resistant sealant joints along the top horizontal edge of exterior profiles. In order to maintain a proper pathway for water and moisture escape, NEVER seal the bottom edge of any PW profile.