BUR: Commercial Roof Install and Repair

How BUR Performs in the Central Florida Climate

FLORIDA CLIMATE


  • Built-up roofing (BUR) systems deliver outstanding performance in Florida's intense heat and prolonged UV exposure, with multiple asphalt and felt plies maintaining structural integrity and flexibility amid high rooftop temperatures reaching 180-200°F common in Kissimmee summers. The thick, redundant layers resist softening, cracking, or excessive flow, while the gravel or mineral surfacing shields the bitumen from direct sun, reducing UV degradation and extending lifespan. Though traditional darker BUR absorbs more heat, reflective coatings or white cap sheets can be applied to boost solar reflectance, lower rooftop temperatures, and decrease cooling demands for commercial buildings in Kissimmee and the surrounding Orlando suburbs.



  • Built-up roofing (BUR) systems excel in Florida's heavy rainfall, high humidity, and tropical storm conditions, with multi-ply asphalt and felt construction creating a robust, redundant barrier that withstands ponding water risks, wind uplift, and hail impacts typical across Central Florida. The layered design provides superior waterproofing to prevent leaks during intense downpours, while gravel surfacing adds weight for enhanced wind resistance and protects underlying bitumen from thermal shock and debris, ensuring reliable long-term performance in Kissimmee’s demanding subtropical climate.


Installation Methods

Built-up roofing (BUR) offers proven, multi-ply installation approaches tailored to deck type, slope, load capacity, and environmental demands common in Kissimmee and Orlando-area commercial structures.


  1. Traditional hot asphalt mopping heats asphalt in kettles to a fluid state, then embeds successive reinforcing felts or base sheets into the molten bitumen, forming a monolithic, redundant membrane with exceptional waterproofing and impact resistance—ideal for concrete, metal, or wood decks in warehouses, industrial facilities, retail centers, and hospitality properties.
  2. Cold-process applications use specially formulated cold adhesives or water-based mastics to bond plies and cap sheets, delivering a flame-free option that reduces fire risks, eliminates strong odors, and accommodates occupied buildings or sensitive environments.
  3. Hybrid methods combine hot mopping for base layers with cold adhesives for upper plies or flashings, balancing efficiency and performance.



All installations include thorough substrate preparation, vapor retarders as required, tapered insulation for positive drainage, interply mopping for complete embedment, flood coating with asphalt, and aggregate surfacing (gravel or slag) for UV protection and slip resistance. Custom flashings around penetrations, parapets, drains, and edges ensure full weatherproofing, with detailed quality checks—including visual inspections and probe testing—providing watertight integrity, strong wind and hail resistance, minimal business disruption, and robust manufacturer warranties for your built-up roofing flat roof install.


Common Failure Signs and Early Warning Indicators

Spotting early warning signs on built-up roofing in Kissimmee, FL, and the surrounding Orlando suburbs prevents minor issues from escalating into major leaks, structural damage, or complete system replacement.


  • Key indicators include alligatoring—deep, irregular cracking resembling alligator skin—from extended UV exposure, thermal cycling, or bitumen aging that diminishes flexibility and permits water entry.
  • Blistering or splitting manifests as raised, dome-like areas or linear tears due to trapped moisture, vapor pressure, or inadequate interply adhesion, often intensifying with Florida’s temperature swings and humidity.
  • Granule or gravel loss uncovers felt or bitumen to faster weathering, wind scour, or neglected maintenance, causing surface erosion and heightened UV vulnerability.
  • Splits, punctures, or ridges arise from hail, foot traffic, dropped tools, or membrane stress, appearing as tears or raised areas that breach waterproofing.
  • Seam or lap failures present as separated or fishmouthed overlaps from thermal movement, insufficient mopping, or adhesive degradation.
  • Ponding water persisting after rain signals clogged drains, scuppers, crickets, or insufficient positive slope from settling or insulation compression.
  • Flashings at parapets, HVAC curbs, vents, drains, and edge metal frequently show cracking, lifting, pulled termination bars, or bitumen shrinkage as primary leak sources in commercial settings.


Regular professional inspections detect these promptly, allowing targeted built-up roofing repair to reinstate multi-ply redundancy, sustain waterproofing, and shield your business from interior water damage and expensive operational interruptions.


Cost Factors for BUR in Commercial Applications

  • Upfront Installation Costs

    Built-up roofing offers competitive upfront costs for commercial flat roof install projects in Kissimmee and the Orlando suburbs, utilizing reliable multi-ply materials and established techniques adaptable to diverse building types and budgets.

  • Long-Term Maintenance Expenses

    Durable BUR systems demand moderate ongoing maintenance, yielding lower long-term costs than options more susceptible to seam issues or punctures in Florida’s UV-heavy, storm-prone climate.

  • Energy Efficiency Savings

    Traditional gravel-surfaced BUR can absorb heat, but reflective coatings, white cap sheets, or aggregate alternatives improve solar reflectance, providing notable cooling cost reductions and strong ROI through enhanced energy performance for Kissimmee-area commercial properties.


BUR Maintenance Checklist