Mueller Snap Lock (MSL) - Manual (Page 7)

7
GENERAL APPLICATION INFORMATION
The details shown on the following pages are suggestions or guidelines for installing the Mueller Snap Lock System.
The installation details shown here are proven methods of construction, but they are not intended to cover all building
requirements, designs or codes. The details may require changes or revisions due to individual project conditions.
Installation procedures shall be in accordance with instructions, details or approved shop drawings. Installers should
thoroughly familiarize themselves with all instructions prior to beginning the installation process.
The installer/designer is responsible for ensuring the following:
• That the details here meet the particular building requirements.
• Awareness of and allowance for expansion/contraction of roof panels.
• That adequate water tightness is maintained.
• That a proper uniform substructure is used to avoid panel distortion and that the substructure meets necessary
code requirements.
• That all supporting members have been examined and are straight, level, and plumb.
Due to the complexities of a standing seam roof it is the responsibility of the customer (or designer/installer) to
determine the suitability of the structure or substrate for a Mueller standing seam roof. It is the customer’s
responsibility to insure that their building is code compliant, properly engineered and constructed to facilitate the
installation of a standing seam roof. Standing seam panels offer little or no diaphragm stability to the structure and
cannot be relied upon for diaphragm support. Purlin stability is not provided by a Mueller Snap Lock panel. Accurate
sheet lengths and trim components are critical to a successful install and should be confirmed by the designer/
installer before any material is ordered.
Mueller can provide all flashings, trim and accessories shown in the installation drawings unless otherwise noted.
Panels, flashing and trim shall be installed true and in proper alignment with any exposed fasteners equally spaced
for best appearance. Sealant shall be field applied on clean dry surface.
Some field cutting and fitting of panels and flashings is to be expected in to be considered as a part of normal installation
work. In some cases extra length has been added to panels to ensure adequate product on the jobsite. Workmanship
shall be of the best industry standards with installation performed by experienced metal craftsmen.
Sealants
Sealants not exposed to direct sunlight should consist of either an elastic butyl rubber tape or non-shrinking, non-
drying gum applied butyl. Single part urethane should be used when exposed to ultraviolet light. All sealant should
be applied clean dry services to ensure weather tightness. Sealant shall be installed as shown without voids.
Snow Design
The following details do not address snow load conditions. Special design consideration is required when installing a
metal roof in heavy snow environments. Contact your Mueller sales representative for more details.
Delivery and Storage
Handle panels in bundles with care. Do not use ropes or wires for lifting. Long panels (25 feet or more) may require
two or more lift points to avoid bending and buckling of panels. Store panels in a dry, well ventilated area. Elevate
one end of the panels to allow for drainage of any moisture. Block panels off the ground. Do not store panels in
direct contact with the ground. Do not allow strippable film to remain exposed to direct sunlight for any extended
period of time. Remove strippable film prior to, or immediately after installation of panels or trim. Do not walk
directly on standing seams. Wear shoes with non-marking/scuffing soles. Inspect each and every panel, trim and all
accessories before installation. Never install any product if it’s quality is in question. Notify your Mueller salesperson
immediately if any product is believed to be out of tolerance, specification, or has been damaged during shipment.
If there is a conflict between project erection drawings provided by Mueller and details in this manual, project
erection drawings will take precedence.
Contents of this manual are subject to change without notice. To confirm this book is the most current
copy, please visit the Mueller website at www.muellerinc.com.