A 5-Step Guide To Maintaining SPF Roofs
Spray polyurethane foam insulation or SPF is a type of roof insulation that can be sprayed on a structure’s exterior surface with the use of a spray foam insulation machine. It is composed of a liquid and an on-site blowing agent. SPF is sprayed as an insulation on the roof and it expands as it comes into contact with the air.
In most cases, SPF is a low-maintenance material that can last for 20 years. However, you can always reapply and asses the roof’s condition to conduct effective repairs or replacements. You can learn more about them below.
Clear Everything Of Any Surface Debris
Using a broom with gentle bristles, you can swiftly remove debris and dirt from your flat roofs. Be careful and tread lightly to avoid any damages and impacts on your spray polyurethane roof material. Slowly advancing while cleaning your roof will help you reveal the damaged areas without putting yourself and functional roofing areas in danger.
After sweeping the roof, you can run a water hose to wash off all remaining debris. Then, wait for 2-3 hours for the roof to dry before hunting for any cracks, dents, and physical damages on your roof. Make sure the roof is already dry because it can cause accidents due to the presence of a higher risk of slipping.
Remove All Fixtures
Fixtures and other structures situated on your roof will hamper the SPF roof maintenance and repair process. Remove them if you can with just the essential tools. Take note that removing them can cause untoward damage to your roofing material because of their weight, so avoid bringing too many individuals who can carry the fixtures and objects away.
Removing these fixtures helps you learn about the presence of cracks and other possible damages underneath them. Remember that SPF involves spraying the material, and carrying objects away from the application zone guarantees a water and airtight fit.
Maintain and Repair Areas With Less Than Ten Faults
As a rule of thumb, it’s best to repair areas with less than ten faults to save your time and effort in doing so. Furthermore, any SPF roof with more than 10-20 faults will require the help of professionals to either repair or completely tear off and re-spray the roof. Most in-house building teams can repair the damaged cracks with caulk and spray foam.
Take note that any area with cracks or dents that are ¾ inch wide and at least ¼ deep will require a full spray roof removal and reapplication. These compromised areas will likely evolve into bigger problems as the weather and other factors continue to worsen the roof’s condition.
Use Roofing Knife To Remove Damaged Foam Areas
If you find any deep dents and cracks, make sure to remove the damaged foam with a roofing knife. Then, place a marker next to these damaged spots to identify them for caulking and respraying.
Apply Replacement Caulk and Foam
Use the caulk to seal the areas you’ve marked and used a knife to remove the damaged foam. Make sure the caulk dries before you start spraying the foam. Upon applying caulk, wait for 15 minutes to let it dry, then apply SPF, and wait 15 minutes until it dries.
If your SPF roof has numerous cracks and dents as we’ve indicated above, we highly recommend having our professional applicators remove the damaged foam and reapply your SPF material. Call us at Ener-Spray today to get started.