With only one layer, you have the choice. It's a little more expensive to strip first, about 25% more, but an advantage of stripping is that your roofer will have the opportunity to replace damaged sheathing. Shingles nailed into splintered sheathing may not hold well.
Below you can see some of the things you might choose to do with your MBA degree: 1. Become a teacher at a college: After you obtain your Masters degree, you are qualified to apply at local universities and colleges. Since, these institutions ask for someone with experience, do not miss an opportunity to speak, mentor, teach community education classes, deliver panels, etc.
Explore career options: After obtaining an MBA degree and updating your resume, you can start considering whether your organization/company provides with options for development. If you feel that you are limited, you might consider other available job opportunities.