The PrimaryBid_Worksheet is the primary form in Roof Estimator. All other forms in roof estimator are only accessible

from this form. All the costs are displayed on the fly on this forms header, as you choose your materials the primarybid_worksheets

header calculates the costs and shows the totals based on the roof types you choose. All roof top measurements get entered into the

correct corresponding boxes in the primarybid_worksheets body. Refer to the screen shots below. The PrimaryBid_Worksheets body

scrolls while the header stays visible, always showing the costs as they change (on the fly) based on the materials you choose.