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How to Install STINGER EXO Roofing Underlayment: A Contractor's Guide

STINGER is committed to redefining roofing standards with innovative solutions that deliver exceptional performance. Our EXO synthetic underlayment is engineered for unparalleled protection against water infiltration, backed by rigorous testing and approval for wind speeds up to 180 mph. This guide will walk you through the installation process, ensuring your project meets the highest standards, too.

Pre-Installation

STINGER EXO underlayment can be installed on roofs with a minimum slope of 2:12 or the minimum slope required for the roof covering material, whichever is greater.

For a successful installation, start by inspecting your roof deck. Make sure it’s clean, smooth, and dry before beginning. Sweep away any dirt or debris.

You may want to use safely secured roof jacks, toe boards, or a storage platform for stability and safety when handling materials, depending on the roof pitch and surface conditions.

Installation
Laying STINGER EXO Underlayment

Start by unrolling the EXO underlayment parallel to the eave with the printed side facing up. Designed with contractors in mind, EXO features pre-printed overlap lines for efficient and accurate installation. Follow these guidelines:

Fastener Selection

When attaching EXO underlayment to the roof, rely on these fastener options from STINGER:

Fastener Spacing

STINGER EXO underlayment includes pre-printed fastener patterns for both normal and high wind conditions to streamline your installation and deliver maximum performance.

In standard conditions,

In high wind zones and coastal areas,

Seams and Joints

Where seams and joints require the use of sealants or adhesives to prevent water infiltration, use a high quality, low solvent, asbestos-free, ASTM D-4586 Type I compliant roofing cement, and consult the manufacturer’s instructions.

Roof Penetrations and Drains

Special attention is required around roof penetrations and drains. Here are some general recommendations:

Code Requirements

Always observe safe roofing practices and comply with all applicable building codes for underlayment application and attachment. Note that in Florida, underlayment installation must adhere to the provisions of Sections 1507 and 1518 of the Florida Building Code (FBC).

Additional Tips and Best Practices

With STINGER EXO, you're not just installing an underlayment; you're laying down the foundation for a roof that stands the test of time, weather, and performance standards. Experience the difference of roofs built to last with STINGER EXO.