The Spray Foam Roofing Process
First, the trained professionals from Cozifoam, servicing Edmonton and the surrounding area, will inspect and prepare the substrate for the application of polyurethane foam. In the case of an existing tar and gravel roof, this includes removing the loose gravel, dust, and debris, inspecting the bared roof carefully for damage, delamination of felt and tar layers, flashing problems, and more.
Next, after any needed repairs are completed, a primer is applied if necessary to ensure proper adhesion of the foam to the substrate.
In the next step, a layer of polyurethane roofing foam is sprayed uniformly over the surface. Roofing foam is a special high-density foam, 1.5 times more dense than the closed cell foam used to insulate walls. This gives roofing foam amazing resilience to traffic and impact (like hail) while maintaining its waterproofing and insulating capabilities.
The foam is spray-applied as a liquid and expands within a few seconds to about 30 times its liquid volume. It hardens within seconds to support foot traffic. As it expands, it completely fills any gaps, cracks, or fissures on the roof and seals perfectly around stacks, flashings, drains, etc. Typically slightly wavy in appearance, the foam can be applied in graduated thicknesses to facilitate drainage.
Finally, a waterproof coating is applied over the top of the foam. Although polyurethane foam is waterproof and will never rot, mould, or mildew, it can be broken down by exposure to ultraviolet rays present in sunlight. The coating protects the foam from sunlight and provides an additional protective layer, sealing your roof against moisture intrusion. As the coating is very elastic (500% elongation), it helps bond the foam to flashings and other materials.
A Sustainable, Renewable Roof
The coating layer takes all of the abuse that Mother Nature throws at your roof. As a result, as long as the coating layer is maintained and renewed as necessary, your roof will last indefinitely. Polyurethane spray foam roofing is truly a sustainable roofing system! Here are some ways that a spray polyurethane foam roof resists the elements:
A spray polyurethane foam roof helps roofing materials hold tight even in hurricane force winds. It forms a seal that grips to the building wall and roof-mounted equipment so there are no edges for the wind to lift up.
Prevents Water Damage
With a spray polyurethane foam roof that resists the wind it will hold tight and prevent water damage. There have been several examples where a hurricane has ripped away roof elements, but the spray polyurethane foam roof has stayed fully intact and prevented water from damaging interior structures.
Resists Missile Damage and Penetration
Wind is not the only danger in a storm that can damage roofs. A spray polyurethane foam roof is resistant to missile borne on the wind such as tree limbs, debris, and other objects. It is sturdy and resists impacts even in hurricane-force winds.
When you’re looking for a commercial roofing company, choose Cozifoam!
Simply put, a polyurethane spray foam Roof Armor System is one of the most cost-effective and durable roofing systems available today! Its unique waterproofing, adhesion, and insulating properties make it the ideal system for new construction or for refurbishing an existing roof. Polyurethane foam and coating are waterproof solutions that will not rot, mould, or mildew.
Learn the top 5 reasons spray foam is your best roofing choice!
5 Reasons Spray Foam Roofing Is Your Best Roofing Choice
1. A spray foam roof is monolithic—no seams! The spray applied roofing material is seamless from edge to edge, eliminating potential weak spots.
2. Spray foam roofs can easily be repaired by your regular maintenance staff. What happens if a spray foam roof is punctured or cut? The damage can easily be repaired with a tube of good polyurethane exterior caulking. Just fill the dry damaged area with caulking, smooth the surface and your roof is as good as new!
3. Spray foam roofing systems pay for themselves by lowering your heating and cooling bills. The insulating efficiency of the spray foam layer saves tons of energy, both for heating and cooling. Some building owners have documented their spray foam roof paying for itself in as little as 5 years!
4. When other roofing systems reach the end of their lifespan, you tear them off and start again from scratch. Spray foam roofs are renewable at a fraction of the cost of a new roof. As the coating layer takes the wear and tear of exposure to the elements, it is the only part of the system that needs replacement and only after years of service!
5. Spray foam is self-flashing. Spray foam and its coating material adhere ferociously to your roof deck and existing metal flashings. There’s no need to replace the flashings or worry about poor adhesion!