Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CWS Roofing: The West Palm Beach Owner’s Guide
We stock and install CWS-compatible roofing components for West Palm Beach homes, with most repairs running $400-$1,800 installed and replacement assemblies available same-day when we have your model on the truck. CWS roof systems - common on homes built between 2004 and 2016 across Palm Beach County - use proprietary fastening patterns and membrane widths that don’t interchange with standard GAF or Owens Corning components without adaptation. Most West Palm Beach owners discover a problem when they spot granules in the gutter after a summer storm, or when a section of ridge vent lifts in a gust off the Intracoastal.
Which CWS Models This Applies To
CWS manufactured three primary roofing series for the Florida market: the CWS-3000 architectural shingle line, the CWS-Tile concrete barrel tile system, and the CWS-Guard flat membrane assembly used on low-slope additions and lanai roofs. The model designation is stamped on the underside of shingles in the 3000 series, or on a metal tag at the ridge for tile and membrane systems. If you can’t access that, measure the exposure width: CWS-3000 shingles expose 5 5/8 inches, where standard Owens Corning exposes 5 3/4 - that 1/8-inch difference is enough to throw off your coursing if you substitute.
We carry OEM-grade CWS-compatible components and validated aftermarket equivalents from Atlas and CertainTeed where the spec matches. For the CWS-Guard membrane, we stock both the original 60-mil TPO and a reinforced 72-mil aftermarket that holds up better against West Palm Beach’s UV load. The aftermarket saves roughly 15% on material, but we won’t install it on a CWS-Tile system where the underlayment clip spacing differs - we’ve seen that mismatch fail at year three in El Cid and Northwood.
Signs Your CWS Roofing Is Failing

- Granule loss concentrated in valleys or along the rake. CWS-3000 shingles used a thinner mineral surfacing than GAF Timberline HDZ, and West Palm Beach’s driving rain scrubs it faster. Once the asphalt mat shows through, you’ve got 18-24 months before leaks start.
- Ridge vent tabs lifting or detaching. CWS ridge vents relied on a foam adhesive that degrades in Florida humidity. When the tabs curl, wind-driven rain enters the attic - we see this most on homes west of I-95 where afternoon storms hit harder.
- Tile underlayment visible at the eave. On CWS-Tile systems, the two-piece eave closure sometimes separates, exposing the #30 felt. That’s your warning that the membrane beneath is taking direct water.
- Blisters or seam separation on flat sections. CWS-Guard TPO shrinks in heat; seams stressed at 95°F+ will gap. A blister means trapped moisture - the deck is already compromised.
- Interior stains appearing after nor’easters, not daily rain. This pattern points to wind-driven intrusion at a fastener line. CWS used a narrower nail pattern than current code; one lifted shingle becomes a funnel in sustained 40-knot winds.
Before
AfterReplacement Cost & What’s Included
| Service | West Palm Beach Price Range |
|---|---|
| CWS-3000 shingle repair (localized, up to 3 sq) | $400-$1,100 |
| CWS-3000 partial re-roof (one slope) | $2,800-$6,500 |
| CWS-Tile underlayment replacement (per sq) | $600-$1,400 |
| CWS-Guard membrane patch (up to 100 sq ft) | $550-$1,200 |
| CWS-Guard full membrane replacement | $8,000-$16,000 |
| Ridge vent replacement (CWS-specific profile) | $800-$1,800 |
What drives the range: accessibility (steep pitches above 6/12 add labor), whether we’re matching discontinued colors from salvage stock, and deck condition - CWS systems from the mid-2000s often have OSB that’s swollen at the eaves. Under Clause 1 of the Haven Standard, you get a written price before we touch a tool, and no change proceeds without a signed change order. Every repair carries our 365-Day Done Right Promise: if it leaks, we make it right. The photo record from your visit goes in your binder, same as our full remodel clients get.
DIY or Call Us?

There’s a safe middle ground. You can walk the perimeter with binoculars, check the gutter for granule buildup, and photograph any lifted tabs from the ground - that’s useful intel, and we welcome the photos when you call. What you shouldn’t do: climb a CWS-Tile roof (the barrel profile is treacherous even when dry), attempt to reseal TPO seams with hardware-store caulk (the chemistry is wrong and it’ll bubble within a month), or replace individual shingles after the adhesive strip has aged past two years - they’ll blow off in the next storm and take neighboring shingles with them.
We’re not affiliated with CWS, which dissolved in 2017, but we’ve been sourcing compatible components and adapting current products to their specs since Grant Rowan brought the crew to West Palm Beach. If you’re not sure what you’ve got, call (561) 475-3903 and we’ll walk you through identification before scheduling a free estimate.
FAQs
CWS-3000 shingles were rated 25 years nationally but typically yield 14-18 years in South Florida’s UV and salt air. CWS-Tile with proper underlayment can reach 30 years on the tile itself, though the membrane beneath needs replacement at 15-20. Call (561) 475-3903 for an exact assessment - estimates are free.
Localized failure - one slope, a ridge vent, or a membrane section - is repairable if the surrounding system is sound. We won’t patch if more than 30% of the field shows degradation; at that point, you’re chasing leaks. We’ll show you the photo evidence and give you both numbers in writing.
Most repairs finish in one day: shingle replacement on a single slope, ridge vent swap, or membrane patch up to 200 square feet. Full CWS-Guard membrane replacement runs 3-5 days depending on deck repairs. We don’t promise speed we can’t document - the schedule is in your written quote.
We stock CWS-compatible ridge vents, fasteners, and membrane rolls on our West Palm Beach trucks. Discontinued shingle colors sometimes require a 3-5 day salvage search through our supplier network. We’ll tell you before we schedule whether your match is on the shelf or in transit.
Rowan Construction Group West Palm Beach is an independent service provider, not affiliated with CWS. We also stock parts for KraftMaid, Cambria, and Silestone products.
Ready to stop guessing about your roof? Call (561) 475-3903 to schedule your free estimate. We’ll identify your CWS series, photograph what we find, and put the repair or replacement price in writing before anyone picks up a tool. Measure twice, document everything, then get out of the way and let the work speak.
Written by Grant Rowan, Owner, Rowan Construction Group West Palm Beach at Rowan Construction Group West Palm Beach, serving West Palm Beach and nearby areas.







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