A sound and water-tight roof is more than just nailing on the shingles. 

First, a sound structural deck must be in place to support the roof covering. Many times a roof leak occurs due to movement or failure of the roof decking or supports. When replacing an existing roof, it is important to thoroughly inspect the substrate surface for loose nailing, improper joints and connections, or evidence of wood rot or deterioration. We have uncovered numerous examples of this condition, in particular, fire-rated plywood sheeting which was applied several years ago as a safety requirement, and has since deteriorated from the heat exposure. 

Second, the felt underlayment should be uniform and smooth. Prior to installing the shingles, COLLIS ROOFING repairs or replaces the felt as necessary. 

Third in the process is the metal work. Metal drip edge is installed around all perimeter edges. Properly mitered corners and proper lapping is a detail many roofers overlook. We often find backward laps and cut square corners on homes we are called to repair or re-roof. All walls, headwalls and valleys should be metal lined as well. At all junctures, COLLIS ROOFING uses a 3-piece flashing detail, recognized as the best method in the industry. All dead valleys and crickets are lined with a torch-down rubber membrane to assure maximum leak proofing in areas subject to excessive water flows or pressures. 

Fourth, the proper application of shingles requires experience and attention to details. Use of chalk lines to keep courses straight, use of proper starters and cap shingles, installations over valleys, proper number and locations of nails all play a vital part in the integrity of your roof. 

Finally, cleaning up and inspecting the work ensures a satisfactory completion for each job. At COLLIS ROOFING our pride and reputation depend on strict adherence to all of the above. We can sum it all up with one word: COMMITMENT. 

Commitment to our customers, commitment to our employees and commitment to the highest standards of workmanship in our industry all combine to afford Collis Roofing customers the best warranty available in the Central Florida region: the COLLIS ROOFING 5-year, fully transferable, no-leak guarantee, covering all materials and labor installed by COLLIS ROOFING.