KEE Roofing in McKinney, TX

KEE roofing belongs to the thermoplastic family. The sheet is reinforced, heat-welded at the seams and usually supplied in light colors that reflect sun. Because the modifier is stable inside the polymer, the sheet is less prone to losing flexibility as plasticizer migrates out over the years, a process that stiffens some PVC membranes. That stability also lets KEE sit directly on many aged bituminous surfaces without a separator, though we still verify compatibility for each product and each substrate before we commit.

Attachment can be mechanical, fully adhered or ballasted, and the choice affects wind resistance, repair method and weight. KEE is generally more expensive than commodity single-plies, so the decision is usually made for a specific reason: oils and fats, jet-fuel type chemicals, or an aged built-up roof that would be difficult to remove.

Under a new KEE sheet, the insulation and cover board do much of the work of resisting impact and holding fasteners. A firm board spreads a hailstone's energy and protects softer insulation. Fire rating of the assembly is checked as a system, since a membrane is only one layer of a listed roof. When we recover over an old roof, the old layers count as part of the assembly, and we confirm the combination with the building official before we price.

We look at two exposure sources. First, anything that drips or settles on the roof: kitchen exhaust, equipment oil, cleaning products, refrigerant lubricants. Second, the surface below: coal-tar pitch, asphalt or an aged coating. Some single-plies react with those layers, swelling or softening where they touch. KEE is designed to resist that interaction, which is why it is a recover candidate over certain old built-up roofs when the existing roof is dry and sound.

The inspection verifies that. We probe the existing roof, check for moisture with an infrared moisture survey, and review fasteners and edges. If the old roof is wet, a recover is the wrong choice, and the report moves to tear-off. If it is dry, the recover can save weeks of demolition and keep the building running.

Dallas-Fort Worth normals put the July daily high at 95.6°F and the August high at 95.8°F, figures that say summer work will be hot and say nothing about any particular roof. Welding in that heat is possible, though the crew shortens the day and starts early. A reflective KEE sheet helps with surface temperature once the roof is complete.

The National Weather Service identifies spring as the severe-weather peak for the Metroplex, when large hail, damaging wind, flooding and tornadoes can occur. A thermoplastic sheet over a firm cover board resists impact better than one over soft insulation. After a storm, we check for punctures, torn laps and displaced flashing, and we test the insulation below any mark. The hail damage repair file records what was storm damage and what was earlier wear.

As with other welded sheets, failures cluster at seams, penetrations and wall terminations. A weld made on a dirty surface will open in time. A pipe boot can lose its seal at the collar. A termination bar can loosen where a parapet moves. We probe every accessible seam, press near edges and penetrations, and photograph each finding to a work zone.

A KEE patch needs clean, dry, compatible material and a probed weld around its perimeter. Old oil residue can prevent a weld, so we clean and test a small area first. If the surface will not accept a weld, a larger section is replaced instead. We draw the repair edge in sound sheet and mark it on the roof so the next inspection can see it.

Three items move the price of a KEE roof more than the sheet itself. The first is the condition of what lies under it: a dry, sound existing roof allows a recover, while wet insulation forces removal, and removal means disposal, a new deck check and more days with the roof open. The second is the detail count, because each curb, pipe and drain needs its own flashing. The third is the work window. A building that cannot stop production will pay for phased openings, night work or extra protection.

We write the options as separate lines. A focused commercial roof repair may be enough for a roof with local defects. A recover keeps the old roof in place and adds a new waterproof layer. A tear-off and replacement resets the whole assembly. Each option carries its own tear-off limit, duration and exclusions, so the facility director can compare them against the production calendar and decide which belongs in this year's budget and which can wait.

McKinney describes office and industrial parks throughout the city along with retail development districts, and the commercial stock therefore spans many roof uses. On a building near the US 75 and SH 121 District, or in an older commercial area such as Historic Downtown McKinney, roof access can mean tight alleys, shared parking and tenant hours that limit lift placement. We confirm access and truck routes on site, because a city overview cannot speak for one site.

A recover goes faster than a tear-off, and that matters during an occupied shift. Still, new insulation and cover board add height at parapets, curbs and doors, so we check clearances before we order. The permit is checked against the building and energy codes McKinney has adopted, including their local amendments.

The record lists the substrate found, the moisture results, the attachment method, the seam probe results and the product data for the sheet. Next to it, a preventive roof maintenance schedule keeps the welds and flashings under watch. Owners who want to compare KEE with standard sheets can look at PVC roofing and built-up roofing on the same plan, since the right choice turns on exposure and the roof underneath.