Frequently Asked Questions

GAF and Owens Corning offer manufacturer warranties that remain valid only when installed by certified contractors using proper techniques. Both brands provide wind resistance ratings and material consistency that perform reliably in Michigan's freeze-thaw cycles. Cardinal Roofing's installation methods ensure warranty compliance and long-term shingle performance.

TPO offers heat-reflective properties that reduce cooling costs, EPDM provides rubber-based flexibility that handles temperature shifts well, and PVC delivers chemical resistance ideal for properties near industrial areas. Each membrane system suits different building uses, energy goals, and budget considerations. Cardinal Roofing evaluates drainage patterns and insulation needs to recommend the right flat roofing system.

Standing seam panels shed snow and ice more effectively than shingles because the raised seams prevent ice dam formation and the smooth surface allows snow to slide off. Metal roofing reflects summer heat, reducing attic temperatures by 10-15 degrees. The system expands and contracts with temperature changes without cracking, unlike asphalt materials.

The craftsmanship warranty covers installation defects including improper fastening, ventilation errors, flashing failures, and underlayment issues that cause leaks or system failure. It's separate from manufacturer warranties, which cover material defects. This dual coverage protects against both product and installation problems for five years after project completion.

Replace when granule loss exposes more than 30% of the asphalt layer, when three or more shingles per section are curling or cracked, or when the roof is over 20 years old with widespread damage. Repairs work for isolated storm damage or small leaks. Full replacement makes more sense when multiple problem areas indicate system-wide aging.

Cedar shake needs proper spacing between shakes for expansion when wet and contraction when dry—typically 1/8 to 1/4 inch gaps. Without correct ventilation underneath, moisture gets trapped and causes premature rot. Experienced installers also orient shakes with the bark side down to shed water properly and prevent cupping.

Inspections check shingle condition, flashing integrity around chimneys and vents, attic ventilation adequacy, and signs of water infiltration or structural damage. The team examines granule loss, nail pops, and underlayment exposure. You'll receive documentation of problem areas with photos and recommendations for repair or replacement based on severity.

Inadequate ventilation traps heat in attics, reaching 150+ degrees in summer, which accelerates shingle aging and adhesive breakdown. In winter, poor airflow causes condensation that rots decking and promotes ice dams. Balanced intake and exhaust ventilation maintains consistent temperatures and can extend roof life by 5-10 years.

Metal roofing reflects 70% of solar radiation compared to shingles absorbing most heat, reducing attic temperatures significantly. This cuts cooling costs by 10-25% during Michigan summers. Metal also doesn't require the petroleum-based materials that absorb and retain heat like asphalt does, maintaining lower roof surface temperatures year-round.

Upgrade when water pools in the same areas for more than 48 hours after rain, when interior leaks occur during heavy storms, or when roof slope settles below the 1/4 inch per foot minimum. Drainage problems accelerate membrane deterioration and void warranties. Cardinal Roofing evaluates slope, drain placement, and load-bearing capacity during inspections.

Gutter guards prevent debris accumulation that causes water backup under shingles, which leads to fascia rot and ice dam formation. Without guards, clogs redirect water against siding and foundations during storms. Guards eliminate seasonal cleaning needs and maintain proper drainage flow that protects both roofing and foundation systems.

Underlayment quality, proper ice and water shield installation in valleys and eaves, and adequate attic insulation prevent the expansion-contraction damage common in Michigan winters. Shingles rated for high wind resistance handle nor'easters better. Ventilation prevents the temperature differentials that cause ice dams and premature shingle failure during repeated freezing.