Installation Systems - Pella 250 Series and Encompass by Pella

Installation Systems - Pella 250 Series and Encompass by Pella

Pella offers a full range of installation systems to accommodate the installation of Pella® windows and patio doors in virtually any structure.

Wood Installation SystemsFiberglass Installation Systems350 Series Vinyl Installation Systems

A local Pella team member is ready to help you with your project.

New Construction Methods of Attachment

There are many options for installing Pella® vinyl windows in new construction and renovation projects: nailing fins, fins with J-channel, and block frames.


View Complete 250 Series Installation Details

View Complete Encompass Installation Details

Integral Fin


  • The integral fin design features a continuous fin, allowing the window frame to be integrated into the building's weather-resistant barrier using the Pella Window and Door Installation Methods
  • This total installation solution includes our exclusive SmartFlash® installation tape and low-expansion, low-pressure polyurethane insulating window and door foam sealant
Integral Fin

Integral Fin with J-Channel


  • The integral fin design features a continuous fin and a J-channel, allowing the window frame to be integrated into the building's weather-resistant barrier using the Pella Window and Door Installation Methods
  • Vinyl siding can be inserted into the channel
Integral Fin with J-Channel
  • Encompass Vinyl Windows and Doors Downloadable Install Details
      J-mold Single-Hung with Vinyl Siding DWG | DXF
      J-Mold 2-9/16" Double-Hung with Vinyl Siding DWG | DXF
      J-Mold 4-9/16" Double-Hung with Vinyl Siding DWG | DXF

Block Frame with Screw Attachment


  • The block frame provides a variety of attachment and installation options
  • Windows can be installed in wood/steel frame openings using jamb screws
  • Block frames may also be used in window replacement projects without removing the existing frame or damaging the exterior
Block Frame with Screw Attachment

  • Encompass Vinyl Windows and Doors Downloadable Install Details
      Block Frame Single-Hung with Brick Veneer DWG | DXF


New Construction Punched Openings

A facade created by the orderly placement of single or multiple windows in punched openings in a wall can be a strong design statement. With Pella's wide range of sizes and product types, your punched-opening design options are virtually unlimited.



View Complete 250 Series Installation Details

View Complete Encompass Installation Details

View Comprehensive Design Recommendations for 250 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

View Step-by-Step Installation Instructions and Videos




Design Recommendations


Depending on the number and configuration of windows and doors per opening, design recommendations for perimeter clearances, weight limitations, wind loads and water management may vary.


Perimeter Clearances


  • To determine window opening size for typical installations, add 1/2" to frame width and height
  • For large windows, multiple windows, out-of-plumb openings, and/or in masonry construction, the need for additional jamb clearances should be reviewed




Typical Sealant Recommendations

Proper sealant placement is critical to window or door performance.




When applying siding, brick veneer or other exterior finish material, leave adequate space between the unit frame and the exterior finish material for backer rod and sealant.

Note: The sealant details shown are standard recommendations from the sealant industry. Contact your sealant supplier for recommendations and instruction for this or any other application.

New Construction Combinations (Mulling)

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
  • 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 250 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 250 Series 1/2" Standard Combination (Joining) Mullion


  • Maximum design pressure: 20 psf
  • 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 50 sq ft if the mull length is greater than 53-1/2"
  • Mulled product combinations cannot exceed 70 sq ft where mull length is less than or equal to 53-1/2"
  • Mullion length limits 95"
  • Any window greater than 25 sq ft may not be mulled horizontally above a fixed 1-wide product
  • 1/2" mullion cannot be used with 5/8" Flange Frame

Pella 250 Series 1" Standard Combination (Joining) Mullion


  • Maximum design pressure 20 psf
  • 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 96 sq ft
  • Mullion length limits 108"
  • Any window greater than 25 sq ft may not be mulled horizontally above a fixed 1-wide product
  • 1" structural mullion can only be used with rectangular windows
  • 1" structural mullion can be used only with block and 5/8" flange frames


Encompass by Pella H-Bar Combination (Joining) Mullion


  • Maximum design pressure: 20 psf
  • Horizontal and vertical combination (joining) mullions may not be used in the same combination
  • 2-11/16" frame depth only
  • Maximum of three (3) windows or composites in one combination
  • Maximum combination frame height = 71-1/2"

Rough Opening Maximum:

  • Field Assembled: 50 Sq. Ft
  • Factory Assembled: See size charts in combination size data section


Encompass by Pella 1/2" Combination (Joining) Mullion


  • Maximum design pressure: 20 psf
  • 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 = 96"
  • All mullions 53-1/2" or longer must be reinforced with a minimum 1/4" x 3" 6061-T6 aluminum flat bar reinforcement

Rough Opening Maximum:

  • Field Assembled: 50 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.


250 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.


New Construction Exterior Trim Options

AZEK® TRIM

Surrounds decay-resistant PVC trim, field-cut or factory-assembled materials

  • Ready for site finishing
  • Cellular PVC material that's impervious to insects and moisture
  • Preassembled surrounds or 9' lengths
  • 4" or 5" flat trim, or 2" brickmould with sill nose



Trim Profiles


Sill Profiles


Head Detail


ROUGH/SMOOTH WOOD

Field-cut, protected, reversible wood trim

  • Primed and ready for site finishing
  • Grained or smooth appearance
  • 10' lengths
  • 3-1/2" or 5" flat widths, 3/4" thickness



Trim Profiles


Head Detail


J-CHANNEL

Factory-applied, integral vinyl trim for use with vinyl siding

  • Prefinished; matches window frame
  • Vinyl siding can be inserted into the channel
  • Designed for windows only




Head Detail


5/8" INTEGRAL FLANGE

Factory-applied, integral vinyl flange for use in masonry walls

  • Prefinished; matches window frame
  • Use with wood bucks and precast concrete sill in masonry walls
  • Designed for windows only




Head Detail


Interior Trim Options

The industry's most popular wood interior trim styles provide a vast range of options that are true to a home's architectural style and decor.

  • All profiles are available in Pine; select profiles are available in Oak
  • Pine trim styles are available prefinished in 8 stain colors or 4 paint colors, or unfinished
  • Oak trim styles are available prefinished with 8 stain colors or unfinished

Wood interior trim from Pella is available two ways:

Trim ordered by the lineal foot

  • Ready for cutting and installation at the job site
  • Curved trim is ready to be trimmed to fit on the jobsite, and works with many curved openings (windows, doors and transoms)
  • Can be ordered separately

Pella's exclusive Ready Trim, Ready Trim Plus and Ready Trim Knockdown trim kits.

  • Convenient and flexible options to fit your job's requirements
  • Works with Pella wood, fiberglass and vinyl windows
  • Works for many rectangular openings
  • Ready Trim Knockdown can be ordered on select wood entry doors and patio doors
  • Must be ordered with the unit


Ready Trim

Field Applied, Designed for all Pella windows and doors


Ready Trim

  • For use with or without Jamb Extensions
  • 4 pieces of trim, Pre-Assembled
  • Packaged by unit

Ready Trim Plus

  • Save time when Jamb Extensions are needed
  • 4 pieces of trim, 4 Jamb Extensions, 4 Cover Strips, Pre-Assembled
  • Packaged by unit
  • Optional Stool and Apron available

Ready Trim Knockdown

  • Pre-measured and kitted to save time
  • 4 pieces of trim with 10" excess
  • Unassembled and unmitered
  • Kitted by order

Ready Trim Plus Knockdown

  • Pre-measured and kitted to save time
  • 4 pieces of trim with 10" excess
  • Unassembled and unmitered
  • Optional Stool (with 14" excess) and Apron available
  • Kitted by order

Trim Styles Available

All profiles and accessories are available in Pine; select profiles and accessories are available in Oak.

Colonial
Simplicity and symmetry authentic to the traditional style

Craftsman
Lasting influence and attention to detail mold the decorative features

Provincial
Curved arches and soft lines create stylish effects from the simple to the extravagant

Ranch
Smooth transitions and a long, low profile highlight the style options

Accessories

Coordinate accessory trim to accents in the home with these beautiful choices.

Stops

Lattices

Stools

Quarter Rounds

Trim

Renovation Complete Tear-Out of Existing Frame and Sash

Complete Tear-out of Existing Frame and Sash


Depending on the needs of the project, vinyl windows can be used to replace existing wood or metal windows when a complete tear-out of the existing frame and sash is required.


Block Frame with Screw Attachment

For window replacement where normal fin/tape installation cannot be accomplished because of wall conditions.



Renovation Retain Existing Frame and Replace Sash

Flush Flange


  • The flush flange frame is designed specifically for replacement applications on stucco exteriors in arid climates like those found in the southwestern part of the United States
  • The flush flange allows for quick installation without removing the existing frame or damaging the stucco exterior





Pocket Installation

For window replacement when the existing frames are in good condition and only the sash needs to be replaced.



Technical Documents Technical Downloads

Technical Downloads


Pella® 250 Series

Fin Installation
Single-Hung with Stucco DWG | DXF
Single-Hung with Water-Managed EIFS DWG | DXF
Single-Hung with Wood Trim DWG | DXF
Sliding Door with Brick Veneer DWG | DXF
Sliding Door with Stucco DWG | DXF
Sliding Door with Vinyl Siding DWG | DXF
Sliding Door with Water-Managed EIFS DWG | DXF
Sliding Door with Wood Trim DWG | DXF
Casement with Stucco DWG | DXF
Casement with Vinyl Siding DWG | DXF
Casement with Water-Managed EIFS DWG | DXF
Casement with Wood Trim DWG | DXF
J-mold Single-Hung with Vinyl Siding DWG | DXF
J-Mold 2-9/16" Double-Hung with Vinyl Siding DWG | DXF
J-Mold 4-9/16" Double-Hung with Vinyl Siding DWG | DXF

Replacement and Renovation Systems

Overview PDF


1This method is applicable for installation of Pella windows and doors only. Pella warranty does not recommend use with other manufacturers' products.

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