- Who warranties your panel installation?
- What types of systems are typically used?
- Are stiffeners required? If yes, why?
- Can Reynobond® be used for retrofit projects?
- Can Reynobond be used for a roof?
- What are the cleaning recommendations for each of the Reynobond paint finishes?
- Can Reynobond be used with storefront or curtain wall systems, such as Kawneer?
- When do I need fire-resistant (FR) versus polyethylene (PE) Reynobond?
- Can I use some FR and some PE on the same project?
- I am designing a building for 90 mph winds (as an example). What spacing do I need on my support beams? What is the maximum span for my profiled siding or Reynobond?
- What sealants do I need to specify that are compatible with your panels?
- What are the differences between wet, dry and rainscreen systems?
- What does “pressure equalized system” mean?
- Do I need to put a waterproof barrier behind my panels?
Q: Who warranties your panel installation?
It is industry standard that the installation contractor warranties the panel installation, sometimes in conjunction with the fabrication company if they are not one in the same.
Q: What types of systems are typically used?
The industry uses two typical systems: a Wet System (a system that utilizes backer rods and sealant between the joints of the panels); and a Dry Set System (a system that utilizes male and female extrusions on two sides of the panel legs and within these extrusions is a gasket system that helps keep the water out of the system).
Q: Are stiffeners required? If yes, why?
It is recommended that stiffeners be installed at 24" on center, but you will need to check with your local building codes to make sure. Please check with your local fabricators for engineering information or with our technical department .
Q: Can Reynobond® be used for retrofit projects?
Absolutely — the lightness of Reynobond makes it ideal for many retrofit applications.
Q: Can Reynobond be used for a roof?
Reynobond is not a preference for roofing, but may be used in small applications. If so, we recommend that a solid substrate such as plywood be installed under the panels along with some type of waterproofing underlayment that is installed over the plywood. A wet system that utilizes sealant is the recommended system.
Q: What are the cleaning recommendations for each of the Reynobond paint finishes?
Please click here to view our technical sheets for cleaning instructions.
Q: Can Reynobond be used with storefront or curtain wall systems, such as Kawneer?
6 mm Reynobond (0.236") is designed to be “glazed” into many systems designed for ¼" glass. However, 4 mm Reynobond is predominantly used in combination with an adaptor or gasket, like those used for “glazing” glass or panels into a 1" opening.
Q: When do I need fire-resistant (FR) versus polyethylene (PE) Reynobond?
The answer to this, in part, depends on local building codes. However, the International Building Code® states that in all cases over 50' above grade, FR is needed.
Q: Can I use some FR and some PE on the same project?
This may depend on your local building inspector and codes. Alcoa Architectural Products discourages the mixing of FR and PE on the same project primarily due to the possibility of applying panels in the wrong areas. These errors could easily cost more to correct than the savings on material costs.
Q: I am designing a building for 90 mph winds (as an example). What spacing do I need on my support beams? What is the maximum span for my profiled siding or Reynobond?
This common question must be answered in two parts. First, the actual wind load on the panels must be calculated. Second, the maximum panel span must be determined. Wind speed should be translated into wind load using civil engineering techniques. Factors include: building size and shape, geographic location, significance of the building (warehouse versus hospital), and surrounding structures. Once wind load (typically given in pounds per square foot) has been determined, maximum spans can be identified. AAP offers tables showing maximum recommended spans for most of our products.
Q: What sealants do I need to specify that are compatible with your panels?
We recommend Dow Corning® 795 Silicone Building Sealant.
Q: What are the differences between wet, dry and rainscreen systems?
The most common application for Reynobond calls for a wet-seal system in which joints between panels are filled with silicone caulk (wet). Wet seal systems put the water line “outside” the panel. Dry seal systems incorporate gaskets, caulk, extrusions, painted metal strips and combinations of these. They typically are used when a reveal is desired, will require a drain network and may allow water “behind” the panel. Rainscreens are a façade, and put an air barrier between the panel system and structural wall.
Q: What does “pressure equalized system” mean?
The term “pressure equalized system” is part of the rainscreen system principle that employs two separate cladding “layers” in the construction of a building’s exterior wall. These layers act together as the final moisture barrier, the air/vapor barrier, an insulating layer and a building structural wall. The outer layer allows water penetration through open wall joints, yet it is in the action of how water penetration occurs and how it is handled that the rainscreen principle diverges into two types of systems: drained/back-ventilated and pressure-equalized/compartmented. Briefly, the drained/back-ventilated approach minimizes water penetration via joint design, channeling water that does enter down through vertical channels and out the bottom exterior of the wall. The pressure-equalized/compartmented approach relies on a carefully designed system of vented openings, which act to equalize the air pressure between the exterior and interior of a building wall. Sections of the wall are “compartmentalized” in order to allow for quick pressure equalization of those sections across a wall having differing wind pressures. When pressure equalization is achieved between the interior and exterior sides of the rainscreen wall, the forces that normally drive rainwater inside are diminished or neutralized. Nevertheless, the interior layer will still need to act as the air/moisture/vapor barrier.
Q: Do I need to put a waterproof barrier behind my panels?
Rainscreens will require a waterproof barrier.