SKU: 98449554913

Gibraltar Building Products 4-in x 20-in Galvanized Steel T-Top Vent and Pipe Flashing, RJ4B

Sale price$19.39 Regular price$21.54
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Description

Gibraltar Building Products 4-in x 20-in Galvanized Steel T-Top Vent and Pipe Flashing, RJ4B4 in Galvanized T Top Vent & Pipe Flashing Durable T top vent and pipe flashing built from professional grade 26 gauge bonderized galvanized steel. Designed for 4 in exhaust pipes, its paint ready to blend with roofing and suited for residential or commercial installations. Key Features: Professional 26 Gauge Steel: Bonderized galvanized construction delivers long lasting weather resistance. Paint Ready Finish: Pre primed surface allows easy painting

4-in Galvanized T-Top Vent & Pipe Flashing

Durable T-top vent and pipe flashing built from professional-grade 26-gauge bonderized galvanized steel. Designed for 4-in exhaust pipes, it’s paint-ready to blend with roofing and suited for residential or commercial installations.


Key Features:

  • Professional 26-Gauge Steel: Bonderized galvanized construction delivers long-lasting weather resistance.
  • Paint-Ready Finish: Pre-primed surface allows easy painting to match shingles and trim.
  • Optimized for 4-in Pipes: 4-in diameter opening with low-profile T-top disperses exhaust evenly.
  • Easy Roof Integration: Large base flange installs under shingles for a watertight seal.
  • Versatile Application: Suitable for bath, dryer, kitchen and other roof exhaust terminations.

Specifications Table:

Specification Details
Fits Pipe Size 4 in diameter opening
Material Bonderized galvanized steel, 26-gauge
Color/Finish Gray; paint-ready (pre-primed)
Base Dimensions Approximately 19 in x 15 in (retailer lists 20 in L x 16 in W)
Maximum Temperature 180°F
Use Roof exhaust termination for bath, dryer, kitchen or other ducts
Design Low-profile T-top with half-dome shield to distribute exhaust
Warranty None
UNSPSC 30151600
California Prop 65 Warning Yes

Frequently Asked Questions (FAQ):

Q: What pipe size does this flashing fit?
A: It is designed for 4-in diameter exhaust pipes.


Q: Can I paint the vent to match my roof?
A: Yes, it’s bonderized and pre-primed, so it’s ready to paint.


Q: What are the base dimensions?
A: Listed as approximately 19 in x 15 in on the spec sheet; Lowe’s also lists 20 in length and 16 in width.


Q: What temperatures can it handle?
A: Rated up to 180°F according to retailer specifications.


Q: Is it for residential or commercial roofs?
A: It’s suitable for both residential and commercial use.


A Clean, Low-Profile Roof Detail

This T-top vent creates a crisp, architectural punctuation on the roofline while keeping the profile discreet. The bonderized steel surface takes paint beautifully, letting you blend or contrast with shingles for a tailored finish. Pair it with a monochrome roof palette for a streamlined silhouette that feels intentional. It’s a small upgrade that elevates curb appeal with quiet sophistication.


Choose this paint-ready, 26-gauge galvanized T-top flashing to finish your 4-in roof exhaust with durable, low-profile performance.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98449554913

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4.2 ★★★★★
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mandie diaz
New York, US
★★★★★ 5
It's so perfect
Size: 10FT*6FT, Color: Black
It is very long and big
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
E
Verified Purchase
El Diablo
Lake Worth, US
★★★★★ 1
Garbage
Size: 6FT*6FT, Color: Black
This product is absolute garbage! It literally took all day to put it together and if the air conditioning blows on it the wrong way than the whole thing top over and it falls apart. It’s not made of quality material and is very flimsy. The only reason I’m not returning it is because it’s too difficult to put together and I don’t wanna spend that much time trying to take it apart. Do not buy this!
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Reviewed in the United States on September 25, 2025
N
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Natasha Spencer
Alexandria, US
★★★★★ 3
Cheap
Size: 6FT*6FT, Color: Black
They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed
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Reviewed in the United States on April 18, 2026
J
Verified Purchase
Jennifer D
Chelsea, US
★★★★★ 5
Really adorable & functional room divider! I love mine!
Color: Dark Coffee, Size: 4 Panel
Really beautiful divider. I use it out on my patio at my apartment building to provide privacy, shade & keep my things safe. At 6 foot tall and 4 panels (I strongly suggest 4 panels) it's quite a lovely addition to my home. It's delicate so handle carefully but it comes completely put together & just set it up. Being able to move it inside or outside or wherever because it's so light makes it very mobile. It's not too opaque you can see through it but if it's for total privacy use a tablecloth or something behind it to make it less see through. It's strong and big and I had a question for their cs and they responded immediately and handled it right away which is a sign of a good company. It's light so make sure you secure it if it's windy for stability.
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Reviewed in the United States on April 14, 2026
A
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Amazon Customer
Pawtucket, US
★★★★★ 5
Nice Look
Color: Dark Coffee, Size: 8 Panel
Attractive and Very versatile. Pretty sturdy, but use care if you buy larger screens when moving. Hinges are small so moving it recklessly could break them. Overall I would recommend this screen. I love it
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Reviewed in the United States on May 20, 2026

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