Roofing Systems

Lakshay Enterprises (LNT) team realises the significance of providing the roofing system for each construction. Generally, there is two categories of roofing – low and steep slope. Low slopes are usually less than or equal to 14 degrees while high slopes are more than 14 degrees. Low slope roofing includes those fit for weather conditions and waterproof. Whereas, the steep slope roofing include water-shedding roof covers.

Low slope roof membranes have mainly three components. The weatherproof layers are most important because it prevents the water from entering any roof assembly. When waterproof layers have reinforcement, there is added strength, resistance to puncture and dimensional stability. Surfacing protects the weatherproof and reinforcement from sunlight and weather and improves its durability. Other available surfacing provides resistance for firing and hail and reflects sunlight.

Following types of roofing are used for low-slope roofing:

  • Built-up roof (BUR) membranes
  • Metal panel roof systems for low-slope applications
  • Polymer-modified bitumen sheet membranes
  • Single-ply membranes
  • Spray polyurethane foam-based (SPF) roof systems
  • Thermoplastic membranes like PVC, TPO
  • Thermoset membranes like EPDM 

Steep-slope roofing

Steep-slope roof systems consist of individual components that are arranged together. There are three primary parts. A roof deck is a structural substrate. Usually, a wooden material like plywood or oriented strand board (OSB) is used. An underlayment is used as a temporary protection till the final roofing is installed. Also, this layer provides the secondary weatherproofing barrier. This underlayment is known as “felt” or “paper.” Finally, the roof covering is the external water-shedding material.

Steep slope roofing is of six types.

  • Asphalt shingles
  • Clay tile and concrete tile
  • Metal roof systems for steep-slope applications
  • Slate
  • Synthetic
  • Wood shakes and wood shingles