Overview

Shingle installation in the field is the core skill of residential roofing. How shingles are laid — the alignment, nailing pattern, exposure, and attention to detail — determines both the performance and the appearance of the finished roof. In Tampa Bay's storm environment, properly nailed and aligned shingles are what stand between a homeowner and hurricane damage. At Trust Roofing, we install shingles to manufacturer specification and Trust Roofing field standards on every project.

Our Field Standards

Shingle installation follows Trust Roofing field standards derived from manufacturer specifications and Florida building code.

Field standards include:
* Nail placement is within the manufacturer’s specified nailing zone — in the nail strip
* Four nails minimum per shingle — six nails in high-wind zones
* Nails are driven flush — not over-driven or under-driven
* Exposure is consistent across every course — chalk lines are used throughout
* No more than 0.25-inch variation in exposure between adjacent courses
* Shingles are staggered correctly — offsets are never less than 6 inches from the joint below

Our Process

Establishing Layout Lines

Before the first course:
* Snap a horizontal chalk line at the correct exposure from the starter course
* Snap vertical chalk lines every 4 to 5 feet as guides for staggering joints
* Confirm the layout from both eaves and rakes before starting

Installing Field Shingles

1. Start at the eave edge, aligned with the starter course
2. Align the bottom edge with the chalk line — do not estimate by eye
3. Drive all four (or six) nails in the nail strip — not above or below it
4. Confirm nails are flush — check by running your hand across the surface
5. Stagger the next course by the specified offset — typically 6 inches for 3-tab or half a shingle for laminate
6. Recheck chalk line alignment every 3 to 4 courses

Nailing Requirements

* Standard zones: 4 nails per shingle in the nail strip
* High-wind zones (most of Tampa Bay): 6 nails per shingle
* Confirm the requirement with the project manager

Working Around Penetrations

* Cut shingles to fit tightly around vents, pipes, and skylights
* Apply roofing cement under shingle edges at all cuts around penetrations

Roofing Terms

Nail Strip

The factory-marked zone on a shingle where fasteners must be driven, placing nails outside this zone reduces wind uplift resistance, can cause premature shingle failure, and may void the manufacturer’s warranty.

Florida High-Wind Nailing Requirement

In Tampa Bay and most of South Florida, Florida building code requires a minimum of 6 nails per shingle rather than the standard 4, increasing the wind uplift resistance of the installed shingle system.

Shingle Exposure

The portion of each shingle that is visible after installation, must be kept consistent throughout the field using chalk lines, as inconsistent exposure is a common inspection failure point on Florida permitted roofs.

Stagger

The horizontal offset between joints in adjacent shingle courses, required by all shingle manufacturers and Florida building code to prevent water from tracking down aligned seams in the field.

Florida Roofing Inspection

The required building inspection of a permitted roofing project in Florida, inspectors verify nail placement, exposure consistency, valley protection, drip edge sequence, and underlayment coverage before the permit is closed.

Related Topics