Therml=Block | | Storefront – TU24000 | TU24650 | Entrances – Therml Doors | TerraPorte 7600 Curtainwall – 300ES | 400TU | 900RW | Operable Windows – Phantom 5000 Zero Sightline Windows |

A break from high energy costs!
Tubelite thermal entrances use Therml=Block to provide superior insulation through increased aluminum separation and air space, while also increasing strength and reducing stress.
Tubelite Therml=Block Entrances are designed using the same durable components as our Standard Entrances for outstanding craftsmanship and strength, with the additional benefit of strut thermal barriers for enhanced thermal performance. Door stiles are available in Medium Stile 4″ and Wide Stile 5″ models; top rails in 4″ and 5″ heights; and bottom in 10″ height for ADA compliance. Snap-in thermally broken vertical frame closures easily accommodate addition of sidelites and incorporation with thermal storefront framing.
Therml=Block Entrances are furnished with mortised butt hinges, offset pivots or continuous hinges as specified. Standard deadbolt locks, and concealed vertical rod or rim panic exit devices also may be selected. Standard pull handles have been designed for ADA access and have matching push bars.
Durable Tie-Rod Construction
The strength and flexibility of steel tie-rod construction is what holds it all together and makes our doors endure. Tie-rod assembly is as durable as welded corner construction, but superior in many ways. Monumental doors can be modified, disassembled or resized right in the field. No other door offers you this much strength and flexibility.

Therml=Block Entrance Series Product Specifications | |||||
Application: Thermally broken door with insulating glass for enhanced thermal performance | |||||
Glass | Air Infiltration |
Structural | U-Value SINGLE DOOR |
U-Value DOUBLE DOOR |
CRF* |
1″ std (3/16″-1″) |
1.0 CFM/Ft.2 @ 1.57 PSF | 50 PSF Design 75 PSF Overload |
Medium: 0.58 Wide: 0.59 |
Medium: 0.52 Wide: 0.53 |
CRFf 57 |
Therml=Block Thermal Entrances Specifications | |
Application: | Thermally broken door with insulating glass for enhanced thermal performance |
Glass | 1″ std (3/16″-1″) |
Air Infiltration | 1.0 CFM/Ft.2 @ 1.57 PSF |
Structural | 50 PSF Design 75 PSF Overload |
U-Value SINGLE DOOR | Medium: 0.58 Wide: 0.59 |
U-Value DOUBLE DOOR | Medium: 0.52 Wide: 0.53 |
CRF* | CRF 57 |
Therml=Block Entrance Series |
Medium | Wide |
Application | Projects requiring high thermal performance | |
Traffic | Light to heavy | |
Vertical Stile 1-3/4” x | 4″ | 5″ |
Top Rail 1-3/4” x | 5″ | 6″ |
Bottom Rail 1-3/4” x | 10″ | 10″ |