Information on the type of underlayment, flashing, shingles and ventilation being used, and the type of product and workmanship warranties offered. Proof of roofing or contractor's license (if required in your city or state).

Although there is construction projects bid software made available to contractors and bidders, there are also online websites that allow you to participate in construction bidding. One such website is construction.com which is a part of the McGraw Hill corporation. The website organizes projects on the basis of location, phase, project type, and e

Keeping track of time during construction bidding is important because general contractors can get off track for a number of reasons. Turning to historical data is a great way to make sure that any bottleneck delays and expensive layoffs are avoided. As a bidder, keeping track of time will help you make sure that the conditions of the bid are met i

There are four types of construction contractsCost Plus ContractsIn this type of contract, the employer agrees to pay the cost of work done plus a profit amount in terms of either a percentage or a fixed price.Lump Sum/Fixed Price ContractsHere, the employer and the contractor agree on a fixed amount for the whole project as a colelctive amount.Uni