Video guide · Roofing system basics
Watch the essential roofing-system components Roofing Giant recommends homeowners understand before a roof replacement project.
This video is a visual overview of a complete roofing system. The roof covering is only one part of the assembly: deck condition, water-shedding layers, flashing, ventilation and compatible roofing components all affect how the finished roof performs.
Beyond the shingles
What a complete roof system needs to address
Roof deck
The deck must be inspected for damaged or unsuitable areas before the new roofing assembly is completed.
Water protection
Underlayment, leak-prone transition details and correctly installed flashing help manage water beneath and around the roof covering.
Ventilation
Intake and exhaust ventilation should be evaluated as part of the roof system rather than treated as an unrelated afterthought.
Roof covering and accessories
Shingles or another roof covering must be installed with compatible accessories and according to the selected system requirements.
Continue your roof research
For a component-by-component explanation, see Roof System Anatomy. You can also review our roof replacement process and roofing materials guide.
If you want the recommendations applied to your own property, schedule a free roof inspection. The final scope and products depend on the roof, manufacturer requirements and the conditions documented during inspection.