Mr-Glass Roofing Nationwide

Mr-Glass Roofing: The Long Beach Owner’s Guide

Mr-Glass roofing systems in Long Beach typically run $400-$1,800 to repair and $8,000-$20,000 for full replacement, with most Mr-Glass-compatible parts available same-day through our local supply chain. We stock common Mr-Glass flashing kits, membrane sections, and sealant profiles for the coastal California climate, and we install with a written price before any work starts. Most Long Beach homeowners discover a Mr-Glass failure after a hard rain, when water shows up at a valley or penetration that used to stay dry.

Call (424) 567-7009

Which Mr-Glass Models This Applies To

Mr-Glass has produced several roofing system lines over the past two decades, and the part you need depends on the series stamped on your original documentation or the edge label on remaining membrane sections. The MG-2000 series, common on Long Beach homes built 2005-2015, uses a 60-mil TPO membrane with proprietary heat-welded seams; the MG-3000 series upgraded to an 80-mil membrane with a different fastening pattern around HVAC curbs. Check the white spec label left by your original installer, usually found on the attic-side sheathing or taped to the underside of a soffit vent.

OEM Mr-Glass membrane rolls are manufactured to width specs that do not always match generic 10-foot TPO stock, which creates a compatibility problem at seams if you mix sources. We source OEM-width rolls through our roofing supplier in Carson, or we can fabricate compatible welded sections on-site when the original width is discontinued. For flashing and termination bars, quality aftermarket equivalents from Johns Manville or Firestone often outperform aged OEM stock because the rubber compounds have improved since original installation. We document which source we are using on your written quote, with the part number, so there is no substitution without a signed change order.

Signs Your Mr-Glass Roofing Is Failing

• Water staining at ceiling penetrations. The Mr-Glass pipe boot or curb flashing has cracked at the EPDM collar or separated from the membrane field. Long Beach’s marine layer accelerates rubber fatigue, especially on north-facing slopes that stay damp until midday.
• Bubbling or tenting of membrane sections. Moisture has entered beneath the TPO layer, usually at a seam that lost its weld integrity. The trapped vapor lifts the membrane and will eventually split it open.
• Granule accumulation in gutters from a “membrane” roof. If your Mr-Glass system was part of a hybrid install with modified bitumen caps, the cap sheet is degrading while the base membrane may still be sound. We see this often in Bixby Knolls homes where the original contractor layered systems.
• Lifted termination bars at parapet walls. The sealant behind the bar has dried out, or the fasteners have backed out from thermal cycling. This is a common failure point in Long Beach because afternoon sun heats the wall cap while evening onshore flow cools it rapidly.
• Soft spots when walking the roof. The underlying insulation board has absorbed water through a puncture or seam breach. Mr-Glass systems rely on dense polyiso board for slope; once saturated, it compresses and creates pooling that accelerates the leak.

Before

After

Replacement Cost & What’s Included

Mr-Glass roof repair in Long Beach runs $400-$1,800 depending on how much membrane we remove, whether the insulation board is salvageable, and whether we need to re-flash a penetration. Full Mr-Glass system replacement on a typical Long Beach single-family home falls in our standard roof replacement range of $8,000-$20,000, with most Mr-Glass jobs clustering around $12,000-$15,000 because the membrane is only one component; proper replacement includes stripping to deck, inspecting and replacing compromised sheathing, installing new insulation board to correct any slope issues, and welding the new membrane system with documented seam testing.

Every quote is a flat written price with line-item breakdown: materials by brand and spec, labor hours estimated, disposal, and permit fees if the job scope triggers Long Beach building department review. Under Clause 1 of the Haven Standard, that price is fixed; no change proceeds without a signed change order. Our 365-Day Done Right Promise covers the installation, and we leave you with a documented photo record of the deck condition, the new membrane installation, and the completed seam weld tests.

DIY or Call Us?

A homeowner can safely check the attic for active dripping, note the location of any stains, and photograph the roof surface from a ladder or drone to show us where the trouble starts. Do not walk a Mr-Glass membrane roof unless you have fall protection and experience with low-slope surfaces; the membrane is slippery when damp, and Long Beach morning marine layer keeps these roofs wet until late morning.

Do not attempt to heat-weld TPO seams yourself. The equipment runs at 600-plus degrees, and improper temperature or pressure creates a weld that looks correct but fails within a season. We have re-repaired too many DIY membrane patches in Belmont Shore and Alamitos Beach where the homeowner used contact cement or peel-and-stick patches that lifted within months. For Mr-Glass systems, the seam is the system; if you are not set up to weld it properly, you are buying a short-term cover-up that costs more to fix correctly later. Call (424) 567-7009 and we will schedule a free estimate with a written price before any work starts.

FAQs