A quality roofing system involves the underlayments, shingles, accessory products, and ventilation all working together. Day after day, year after year. At Mukwonago Remodeling Green, we call that the MRG Roof System. The MRG Roof System is designed to provide optimum performance — no matter how bad weather conditions are. After all, better quality shingles mean longer-lasting roofs. Add in underlayments, accessories, and ventilation products, and you’ve got a roof system that really works.