Client
Pennsylvania Game Commission
State Government Agency
Project Type(s)
Government Roofing Project
Commercial Roof Replacement
Single-Ply Roof Replacement
Flat Roof Replacement
Location
Shippensburg, Pennsylvania
Project Overview
This was a full single-ply roof replacement on a government facility where the existing spray foam system had reached the point where ongoing maintenance was no longer the smart play. The scope called for a clean reset: remove the old roof down to a reliable substrate, rebuild the roof assembly for drainage and durability, then finish with a proven commercial membrane system that can take day-to-day exposure without turning every small detail into a future leak.
RTG Solutions handled the tear-off and rebuild as a complete system, not a surface refresh. That meant dialing in the layers that control performance long after the ribbon-cutting: the tapered insulation package, the cover board, the adhesion method, and the perimeter metal where roofs usually win or lose.
Location
Shippensburg sits in the part of Central Pennsylvania where roofs get the full four-season treatment: summer heat, wind-driven storms, cold snaps, freeze-thaw swings, and long stretches where moisture hangs around longer than anyone wants. On a low-slope roof, that reality shows up fast at terminations, edges, and penetrations. Details matter here, because weather does not negotiate.
This project was planned and executed with that in mind, including perimeter detailing and edge metal built to stay put and stay tight through thermal movement and seasonal stress.
Roof System and Materials
The starting point was removal of the existing spray foam roof system. From there, the build moved into the part that actually determines how a flat roof behaves: tapered insulation for drainage, then a 1/2-inch high-density cover board, with the assembly adhered using low-rise foam adhesive. That sequence is not decorative. It is what keeps the membrane supported, helps manage standing water risk, and reduces the “soft spots” that lead to premature wear.
The finished roof surface was a fully adhered 60-mil EPDM membrane manufactured by GenFlex. To close the system correctly at the perimeter, the project included new 24-gauge galvanized edge metal. After installation, the roof was inspected and approved for a 20-year NDL warranty, which is exactly the kind of box you want checked on a public-sector facility.
About the Client
The client for this project was the Pennsylvania Game Commission, a Pennsylvania state agency. Government facilities are expected to stay operational, budgets and timelines are real constraints, and the work has to be done cleanly, safely, and to spec, with documentation and accountability built into the process.
This was also not a one-off relationship. The same document notes this as the second roof replacement RTG completed for the Pennsylvania Game Commission, with another project already awarded. That kind of repeat work usually tells you all you need to know about RTG’s quality!
Project Scope
- Remove the existing spray foam roof system across approximately 11,400 square feet
- Install new tapered insulation to improve drainage and support a long-term roof assembly
- Install 1/2-inch high-density cover board, adhered in place using low-rise foam adhesive
- Install a fully adhered 60-mil EPDM single-ply membrane
- Replace the perimeter edge system with new 24-gauge galvanized edge metal
- Complete manufacturer inspection and closeout to secure a 20-year NDL warranty
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Quality Highlights
A single-ply roof replacement is only as good as the stuff people do not notice from the ground: drainage strategy, substrate stability, adhesion quality, and perimeter detailing that stays tight when the building moves and the weather gets mean. This project hit those pressure points head-on, then backed it up with a manufacturer inspection and a 20-year NDL warranty so the facility is not stuck playing roof-whack-a-mole next season.
Adhesion and layering done the disciplined way
The combination of tapered insulation, high-density cover board, and low-rise foam adhesive is the kind of work that performs, especially on large commercial roof areas where uneven support and ponding water quietly wreck roofs over time.
Perimeter control with new edge metal
A single-ply roof can be installed perfectly in the field and still fail early if the edge details are sloppy. New 24-gauge galvanized edge metal brings that perimeter back under control, which is where wind and water usually start getting ideas.
Manufacturer inspection and 20-year NDL warranty
On a public-sector job, that inspection and warranty approval is a concrete signal that the roof assembly, detailing, and install standards landed where they needed to land.
