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Tremron Roofing: The Sunnyvale Owner’s Guide
Tremron concrete roof tiles and paver systems installed in Sunnyvale typically run $8,000-$20,000 for full replacement and $400-$1,800 for spot repairs, with most Tremron-compatible parts and color matches available same-day through our supply chain. We stock Tremron-compatible underlayment, battens, ridge caps, and color-matched replacement tiles for the most common profiles found in Sunnyvale’s post-1980s subdivisions, especially around Lakewood Village and the Washington Park corridor where these roofs are concentrated. Most homeowners first notice a problem after the first heavy winter rain, when a cracked barrel tile or failed mortar bed lets water into the soffit, or when Santa Clara County’s thermal cycling, the daily 30-degree swing between morning fog and afternoon sun, pops a fastener or splits a tile at the nose.
Which Tremron Models This Applies To
Tremron’s roofing line breaks into three families that matter for parts matching: the Slate Profile concrete tiles, the Old World Spanish barrel tiles, and the flat Shake Profile tiles used on some Sunnyvale ranch remodels from the 1990s. The part you need depends on which family is on your roof, and the only reliable way to tell is to read the underside of an intact tile, the ink-stamped model code sits in the recess near the tail edge, or to measure the exposure, the visible height of the tile course, which runs 7 inches on Slate Profile, 8.5 on Old World Spanish, and 10 on Shake Profile.
We source Tremron OEM tiles through their Jacksonville distribution network, but for discontinued colors, and Tremron has retired at least a dozen blends since 2010, we match to quality aftermarket equivalents from Eagle or US Tile. The aftermarket decision is straightforward: if your roof is under 15 years and the color is current, OEM preserves the warranty and the exact surface texture. If the roof is older or the color is gone, a matched aftermarket tile with the same ASTM C1492 freeze-thaw rating performs identically in Sunnyvale’s mild climate, and the savings run 20-30 percent on material.
Signs Your Tremron Roofing Is Failing

- Cracked or chipped tiles at the nose or tail. The nose, the curved front edge of a barrel tile, takes the direct impact from wind-driven rain and occasional Santa Ana debris. Cracks here usually mean the tile has absorbed moisture and gone through enough thermal cycles to fatigue; the underlying felt underlayment is now your only waterproofing layer.
- Granule accumulation in gutters or at downspout outlets. Tremron tiles carry a colored surface layer, not granules like asphalt, so if you’re seeing gritty sediment, it’s likely deteriorated mortar from the ridge or hip caps, or degraded underlayment breaking down. Either way, the waterproofing stack is compromised.
- Water stains on the soffit or fascia board. The soffit is the horizontal surface under your eave, and staining there means water is getting past the tile, past the underlayment, and traveling along the rafter tail before it drips. In Sunnyvale, we see this most often where the original installer skimped on headwall flashing at second-story additions.
- Loose or rattling tiles in wind. A properly set Tremron tile weighs 9-12 pounds and sits on battens, horizontal wood strips, with a two-nail or foam-adhesive fastening. Rattling means the fastener has backed out, the batten has rotted, or the foam has degraded; all three let the tile lift and admit wind-driven rain.
- Visible daylight through the roof deck from inside the attic. This is the end-stage symptom. It means multiple layers have failed, tile, underlayment, and possibly the skip sheathing or solid deck beneath. In Sunnyvale’s climate, this rarely causes immediate interior damage because our rain comes in concentrated winter events, but each storm worsens the deck.
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AfterReplacement Cost & What’s Included
For Tremron tile work in Sunnyvale, our installed pricing follows the ranges we publish: spot repairs run $400-$1,800 depending on how many tiles, how much underlayment is exposed, and whether we need to match a discontinued color. Full Tremron roof replacement, including tear-off of the existing tile, replacement of compromised battens and underlayment, and reinstall with new or matched tile, falls in the $8,000-$20,000 range for typical single-story footprints in the 1,200-2,400 square foot band common around Sunnyvale.
What drives the spread: access difficulty (steep pitches over 6:12 cost more in labor hours), whether the original roof used the obsolete mortar-set ridge system versus modern mechanical fasteners, and how much of the skip sheathing, the spaced boards under the tile, needs replacement after decades of intermittent leaks. Under Clause 1 of the Haven Standard, you get a written line-item quote before we start, material costs, labor hours, and any subcontractor scope, such as crane rental for steep or tight lots, listed separately. Every Tremron repair carries our 365-Day Done Right Promise, and full replacements include the documented photo record of deck condition before the new underlayment goes down.
DIY or Call Us?

There is one safe homeowner check: from the ground or a stable ladder at gutter height, look for obvious tile cracks, shifted tiles, or missing mortar at the ridge. Do not walk the roof. Concrete tile is brittle, the surface is slick when dew-covered, and Sunnyvale’s low-slope modernist roofs, common in the Birdland area, are deceptively treacherous at 4:12 pitch or below where a foot placement error sends you to the edge fast.
What goes wrong with DIY: improper tile lifting technique cracks adjacent tiles, the interlock on Tremron profiles is tight and unforgiving. Mortar mixing for ridge repair looks simple but the ratio and cure time, 72 hours minimum before water exposure, are critical. Underlayment replacement requires removing and reinstalling dozens of tiles without damage, then resealing correctly. We carry Tremron-compatible tiles, battens, #10 ring-shank nails, and polyurethane foam adhesive on our trucks; most Sunnyvale repairs finish in a half day. Call (650) 405-3637 to schedule your free estimate.
FAQs
Tremron tiles carry a 50-year limited material warranty, but in practice, the tile itself outlasts the underlayment and fastening system beneath it. In Sunnyvale’s climate, with mild winters and high UV exposure, expect the SBS-modified underlayment to need replacement at 20-25 years, while the tile, if not walked on or struck, can go 40-plus. Call (650) 405-3637 for an exact quote on underlayment replacement, estimates are free.
Surface cracks can be sealed with color-matched polymer filler as a temporary measure, but the repair is cosmetic; the tile’s structural integrity and water-shedding profile are compromised. We replace cracked tiles, the proper fix, and stock the most common Sunnyvale color blends to do it in one visit. Call (650) 405-3637 to schedule your free estimate.
A localized repair, five to fifteen tiles with underlayment patch, typically takes three to four hours on site. Full Tremron roof replacement runs four to seven working days depending on square footage, deck condition, and whether we encounter the old mortar-set ridges that require more careful tear-off. Call (650) 405-3637 for a written timeline with your quote, estimates are free.
We stock Tremron-compatible replacement tiles in the blends most common to Sunnyvale, including Santa Fe, Cedar, and Slate Gray, plus matching ridge caps, underlayment, and fasteners. Discontinued or rare colors ship from Tremron’s West Coast distribution in two to five business days; we verify stock before we schedule. Call (650) 405-3637 to confirm availability for your color, estimates are free.
Rowan Construction Group Sunnyvale is an independent service provider, not affiliated with Tremron. We also stock parts for KraftMaid, Cambria, and Silestone products.
Ready to get your Tremron roof sorted? Call (650) 405-3637 to schedule your free estimate. We’ll measure it twice, write it down, then build it, the way Grant Rowan has run every job since 2007.
Written by Grant Rowan, Owner, Rowan Construction Group Sunnyvale at Rowan Construction Group Sunnyvale, serving Sunnyvale and nearby areas.







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