Vinyl Installation Systems Pella 2. Series and Encompass by Pella. Mullion Reinforcements. Combinations. This section explores the opportunities, requirements and limitations related to joining various combinations of standard Pella vinyl windows and doors. Typical Window Combinations. Typical Door Combinations. Specific accessories and construction details must address the various conditions that are critical for the proper design of combinations of windows and doors such as Proper flashing. Control joints to accommodate expansion and contraction. Intermediate structural support. How To Install Window Without Nailing Fin For Windows' title='How To Install Window Without Nailing Fin For Windows' />Mullion reinforcing and its end anchorage to the rough opening. Rough opening wall construction to accept loads transferred from window combination. View Comprehensive Design Recommendations for 2. How to Replace Sash Cords on Hung Windows. If you want to keep historic hung windows instead of replacing them, you can replace frayed or severed sash. Responses to Top 10 Questions about PVC Trim David Stuack September 5, 2012. I have found that Spray Nine works great for cleaning PVC. Builders installing thick exterior wall foam can install windows two ways with the window flanges in the same plane as the back of the siding so called outie. AAEAAQAAAAAAAAUIAAAAJDQ1MjY5YjVhLTViOGItNDllYS1iMjBiLTNjNzdlOThiNThlYw.jpg' alt='How To Install Window Without Nailing Fin For Windows' title='How To Install Window Without Nailing Fin For Windows' />Series Window Combinations. View Comprehensive Design Recommendations for Encompass Window and Door Combinations. View Combination Size Data for East Region Encompass Windows and Doors. View Combination Size Data for West Region Encompass Windows and Doors. Two Way Joint Recommendations and Parameters. When you want the visual impact of vertically stacked or horizontal window combinations, the Pella Commercial technical staff can work with you to provide mullion reinforcement or intermediate dead load support detailed to ensure compatibility with your aesthetic vision. Design Recommendations. In addition to the recommendations for punched openings, the greater height of vertical stacks often requires special detailing, reinforcing mullions, intermediate dead load support to resist structural loads, allowing for construction tolerances, and providing adequate water management. Pella 2. 50 Series 12 Standard Combination Joining Mullion. Maximum design pressure 2. A combination may utilize up to three windows. Horizontal and vertical combination joining mullions may not be used in the same combination. Mulled product combinations cannot exceed 5. Mulled product combinations cannot exceed 7. Mullion length limits 9. Any window greater than 2. Flange Frame. Pella 2. Series 1 Standard Combination Joining Mullion. Maximum design pressure 2. A combination may utilize up to three windows. Horizontal and vertical combination joining mullions may not be used in the same combination. Mulled product combinations cannot exceed 9. Mullion length limits 1. Any window greater than 2. Encompass by Pella H Bar Combination Joining Mullion. Maximum design pressure 2. Horizontal and vertical combination joining mullions may not be used in the same combination. Maximum of three 3 windows or composites in one combination. Maximum combination frame height 7. Rough Opening Maximum Field Assembled 5. Sq. Ft. Factory Assembled See size charts in combination size data section. Encompass by Pella 12 Combination Joining Mullion. Maximum design pressure 2. Horizontal and vertical combination joining mullions may not be used in the same combination. Units being mulled must have the same frame depth. Maximum of three 3 windows or composites in one combination. Maximum combination frame height 9. Midi Usb Driver Windows 7 64. All mullions 5. 3 12 or longer must be reinforced with a minimum 14 x 3 6. T6 aluminum flat bar reinforcement. Rough Opening Maximum Field Assembled 5. Sq. Ft. Factory Assembled See size charts in combination size data section. All units must have interior and exterior accessory groove. Three and Four Way Wind Load Design Guidelines. Design Recommendations. Three and four way mullion intersections require wind load reinforcing in one direction either vertically or horizontally. Many reinforcing options are available. The size of the reinforcing is determined by the wind load and window area carried by the reinforcing mullion. The Encompass reinforcing tables consider structural performance only. See the Size and Performance Data page within each product section for single unit performance class and grade ratings. Series Mullion Design. Important Determining and meeting the structural load requirements and design of the rough opening is the responsibility of the architect or engineer. Window and door frame systems are not designed to support additional elements or components of the building wall system. Encompass Mullion Design. Important Determining and meeting the structural load requirements and design of the rough opening is the responsibility of the architect or engineer. Window and door frame systems are not designed to support additional elements or components of the building wall system.