ThermaBLOC Attic Stairways
  • 1 3/8" thick insulated door
  • U-Factor of .20
  • R-Value of 5.0 (entire door assembly)
  • R-10 door available
  • Incorporates Q-Lon smoke rated weather-stripping
  • Exterior grade door frame
  • 350 lb duty rating
  • FSC Certified plywood available
  • Helps Meet the following LEED Homes credit categories:
  • Energy and Atmosphere Credit 2.2
    (Enhanced Insulation Exceeds IECC by 5%)
  • Energy and Atmosphere Credits 3.1
    (Minimal Envelope Leakage)
  • Meets requirements for the TBC Item 5 Attic Drop-Down Stairway for ENERGY STAR™ Certified homes meeting the Thermal Bypass Inspection Checklist
WOOD MODELS

Model #
Rough
Opening
Ceiling Height
Landing
(1)
Projection
(2)
TBW-80
22½" x 54"
8'9"
60"
69"
TBW-89
22½" x 60"
10'9"
73"
85"
TBW-100
25½" x 54"
8'9"
61"
71"
TBW-109
25½" x 60"
10'9"
73"
85"
TBW-200
30" x 54"
8'9"
61"
71"
TBW-309
30" x 60"
10'9"
73"
85"

ALUMINUM MODELS

Model #
Rough
Opening
Ceiling Height
Landing
(1)
Projection
(2)
TBA-80
22½" x 54"
8'9"
60"
68"
TBA-81
22½" x 54"
10'0"
68"
78"
TBA-100
25½" x 54"
8'9"
60"
68"
TBA-101
25½" x 54"
10'0"
68"
78"