1. By Robyn Dean Christy Lewis
Roofing Manufacturer By
Robyn Dean
Christy Lewis

2. History Based out of Ennis, TX
Factory Plant--scratch, packaged, and labeled
Shipments are made to various customers and regions

3. History cont.
Three different types of shingles are produced, with various different colors--A,B,C
Three regions--D,E,F
The first company to make roofing material through advance technology and production

4. PROBLEM
To forecast which product should be made first (for the peak months) to meet the estimated historical sales and current sales
To forecast which product to produce during the low peak months to continue with sales, at the same time not go over limited storage capacity

5. Considering Factors Production Capacity limited
Limited Storage Capacity
Weather
Competition and Market Trend
Production cycle = 30 days
Assumption= peak buying time is at the end of each month

6. Information
Historical Data= sales and production of products over 5 years each month (93-97)
1998 Data = same as historical data
Most productive product

7. Solving Methods
Forecasting using decomposition which takes into account Trend, Cyclical, Seasonal, and Irregularity
Smoothie
Excel

8. Conclusion
Product B = most popular product should be produce during the low peak months, December, January, etc.
Product C and A = should be produced during the high peak months (summer)

9. Recommendations
Product B should start the production cycle as soon as the low peak months start in order to produce enough product
Same for Product A and C
With this, believe that the limit storage capacity will not over fill and production capacity will be steady