Gentek Aluminum Soffit · In Stock in Twin Falls
Aluminum Soffit in Twin Falls, Idaho
Gentek 12″ T4 Hi-Tensile aluminum soffit: center-vented in 18 colors and solid in White, Black, Bronze and Musket Brown, all matched to our aluminum fascia. Stocked in Twin Falls for same-day pickup or job-site delivery.

Gentek aluminum
Won’t rot, split, warp or need paint
18 vented colors
Plus 4 solid colors
Same-day pickup
Or job-site delivery
Trade pricing
Contractor accounts & invoicing
Aluminum Soffit That Protects and Ventilates
Soffit is the paneling on the underside of your roof overhang. It closes off the eaves from birds, insects and weather, and vented soffit lets fresh air into the attic so heat and moisture can escape through your roof vents.
We stock Gentek Hi-Tensile aluminum soffit because aluminum simply lasts. It won’t rot, split or warp from moisture, and the baked-on finish won’t blister, flake or peel. It’s the choice for contractors who don’t want callbacks and homeowners who never want to repaint an eave again.
Our vented soffit comes in the same colors as our 6″ aluminum fascia, so rooflines match from end to end.
Soffit Products We Stock
| Product | Details | Use it for |
|---|---|---|
| Gentek 12″ T4 Center Vented Soffit | Hi-Tensile aluminum; 18 colors; 3.9 sq in of ventilation per lineal foot | Eaves over a vented attic |
| Gentek 12″ T4 Solid Soffit | Hi-Tensile aluminum; White, Black, Bronze, Musket Brown | Porch ceilings, gable overhangs, areas with no attic behind |
| Klauer Premium T4 soffit, black only | Limited stock, while supplies last (not being restocked) | Dark modern rooflines |
| ½″ Aluminum J-Channel · Klauer 7/16″ J-Channel | Receiver channel | Holding soffit panels at the wall and fascia |
| Fascia screws · Touch-up paint | Fasteners & finish | Clean, color-matched install |
Special order (typically 3–4 weeks): Gentek 12″ T4 fully vented soffit (11.6 sq in of ventilation per lineal foot), 16″ Quad 4 panels, and solid soffit in other Gentek colors.
Aluminum Soffit Colors
We stock center-vented soffit in every Gentek aluminum color except Grecian Green, plus Charcoal (18 colors). These match our 6″ fascia, so it’s easy to coordinate your roofline with your siding and trim.
Center vented (18 colors): White, Linen, Sandstone, Almond, Wicker, Canyon Clay, Pebble, Brownstone, Norwood, Thistle, Terratone, Musket Brown, Royal Brown, Sage, Dover Gray, Charcoal, Bronze, Black
Solid (4 colors): White, Black, Bronze, Musket Brown
Stock changes daily, so call ahead to confirm a color before you make the trip.
Why Aluminum Soffit Is the Smart Choice
Healthy attic airflow
Vented soffit is the intake half of your attic ventilation. It helps prevent summer heat buildup and winter moisture, frost and ice dams.
Moisture-proof
Aluminum can’t rot, swell or split, even where snowmelt and ice sit on the eaves every winter.
Lifetime warranty
Gentek backs its Hi-Tensile aluminum soffit and fascia with a lifetime limited, non-prorated, transferable warranty.
Keeps pests out
A closed-in eave keeps birds, wasps and rodents from nesting in the overhang.
Stiff T4 profile
The four-panel T4 design with V-grooves adds rigidity, so long runs stay flat and straight.
Matches everything
Gentek’s coordinated colors match its fascia, trim and vinyl siding across the product line.
For Contractors & Builders
- Soffit, fascia, J-channel and fasteners in one stop
- Stocked colors, so you don’t have to wait on distribution
- Trade pricing, invoicing and contractor accounts
- Delivery to your job site on your schedule
- Material estimates from plans
For Homeowners & DIYers
- Help figuring out vented vs. solid for each area
- Color matching to your existing siding and trim
- We’ll make sure you have all the J-channel and fasteners
- We’re supply-only and happy to supply your installer
Shop Soffit
Everything to Finish the Job
Soffit is one part of a finished roofline. We stock the rest too:
- Aluminum fascia: 6″ Gentek fascia in the same 18 colors, 8″ in White, Black and Musket Brown
- Trim coil for custom bends and wraps
- Gutter coil, hangers & rainware
- Gentek vinyl siding and ASCEND composite cladding
- All metal trim & accessories
Job-Site Delivery Across the Magic Valley
Pick up the same day at 299 Addison Ave W, Suite B, Twin Falls (Mon–Fri 7:30–4:30), or we can deliver to your job site and schedule it around your crew. We deliver to Twin Falls, Kimberly, Filer, Wendell, Gooding, Hagerman, Burley, Rupert, Mountain Home, Hailey, Bellevue and Sun Valley. Outside those areas? Call us and we’ll do our best to help.
Frequently Asked Questions
Use vented soffit on eaves over a ventilated attic. It’s the air intake that works with ridge or roof vents. Use solid soffit where there’s no attic behind it, like porch ceilings, gable-end overhangs and covered patios. Many homes use both.
The building code generally calls for 1 square foot of net free vent area for every 150 square feet of attic floor (or 1:300 in some cases), split between intake (soffit) and exhaust (ridge or roof vents). Gentek’s 12″ T4 center-vented soffit gives 3.9 square inches per lineal foot. Fully vented soffit (11.6 sq in per foot, special order) is an option when you need more intake. Check with your local building department or installer for your specific home.
Both are low-maintenance. Aluminum is stiffer, so it sags less on wide overhangs. It’s non-combustible, and its baked-on finish holds color well in strong sun. That’s why we focus on aluminum soffit.
T4 describes the profile: each 12″ panel is formed with four smaller panel sections, which gives it a clean, grooved look and extra rigidity.
Yes. We stock Gentek 12″ T4 aluminum soffit (center-vented in 18 colors, solid in White, Black, Bronze and Musket Brown), plus J-channel and fasteners, at 299 Addison Ave W, Suite B. Call 208-539-0851 to confirm your color.
Yes. Our center-vented soffit and 6″ fascia come in the same 18 colors, and Gentek’s Color Clear Through® system coordinates them with its siding and trim.
Need Soffit for Your Project?
Call or text with your lineal footage, overhang depth and color, or email your plans and we’ll figure out quantities.




