Cornerstone™ Vinyl Single Hung Windows (Series 3700)
Cornerstone is Superior’s most economical window series, yet still features the same high quality that Superior has been known for since 1954. It features a beveled frame, slim sight lines and is a great energy saver.
- Beveled exterior design for a modern look
- Euro designed cam lock.
- Extruded high impact, UV stabilized, multi-chamber rigid PVC
- ¾” Insulated glass utilizing the Intercept™ warm edge spacer system
- ClimateShield3™ high performance Low E3 glazing (optional)
- 2 5/8” frame depth
- Select from the following frame types: Block, block sloped sill or retrofit.
- Optional retrofit frame features retro fins with a 1 3/4″ dual wall design
- Select from white or almond colors.
- Backed by our Full Lifetime Warranty
- Meeting rails and interlocks are reinforced with aluminum extrusions for added strength
- Available in standard or custom sizes
- Screens are aluminum frame with fiberglass mesh
- A coil balance system allows the sash to raise and lower with ease
- Fin seal weather-stripping provides protection against dust, air and water infiltration
- Continuous integral pull for easy access and operation
* Viewed from exterior
Series 3790
Series 3750
Series 3755
* Also available with sloped sill
Integral interior and exterior
White
Almond
* Colors shown are representative. Actual colors may vary.
Thermal Ratings
Tested under NFRC 100 Standard Specification with ClimateShield3™ high performance glazing system featuring Low-E3 glass.
| Low-E3 | Low-E3 + Argon | |
|---|---|---|
| SHGC | .23 | .22 |
| U-Factor | .33 | .30 |
Structural Ratings
As tested under AAMA 101/I.S.2 Standard Specification
| SH | R 25 | DP 25 |
Windows meet and surpass California Model Building Security Ordinance for forced entry resistance.
Glass Options
Grid Options
