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Perma-Boot

Model PB 312-4BK

Internet #203310754

4 in. Inside Diameter Black New Construction or Reroof Thermoplastic Vent Pipe Roof Flashing

$18.84 /each

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Product Overview

The Perma-Boot 312 is a high performance vent pipe flashing designed for new roof and re-roof applications. The patented design allows for use on roofs pitched from 3/12 to12/12. Compatible with PVC an all other vent pipe types. A nailing flange is incorporated for traditional fastening to roof deck. Avoid using old fashioned vent pipe flashings that utilize rubber or neoprene gaskets to seal out water which fail in a matter years allowing water to enter the home and cause damage to sheetrock, insulation, paint and hardwood floors etc. The Perma-Boot will stand up to all weather extremes and is warranted for the life of the shingle. Available in black, brown, weathered wood and gray to match your shingles. Made in the USA.

  • Provides permanent protection from costly vent pipe gasket leaks
  • Designed for all standard roof pitches - 3/12 to 12/12
  • Simple installation with nailing flange for fastening to roof deck
  • Suitable for asphalt shingles, wood shake, slate, terra cotta and composite roofing materials

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Customer Questions & Answers

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Customer Questions & Answers

4 in. Inside Diameter Black New Construction or Reroof Thermoplastic Vent Pipe Roof Flashing
4 in. Inside Diameter Black New Construction or Reroof Thermoplastic Vent Pipe Roof Flashing

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This question is from 4 in. Inside Diameter Black New Construction or Reroof Thermoplastic Vent Pipe Roof Flashing
 
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Will this fit a 4" Cast Iron Vent Pipe

This question is from 4 in. Inside Diameter Black New Construction or Reroof Thermoplastic Vent Pipe Roof Flashing
Asked by
Seattle, WA
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July 30, 2015
I have a 4" inner diameter, 4-1/4" outer diameter cast iron vent pipe - will this fit it???
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Answer (1)

Asked by
NY
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Home Improvement Profile: DIYer
November 25, 2015
Answer: 
I called the manufacturer at 919-662-9894 and was told that it will fit a 4" cast iron pipe, although it may be a little tight. Good luck.
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Customer Reviews

Rated 4.0 out of 5 by 2 reviewers.
Rated 4.0 out of 5.0 by Does the job We put up the smaller sizes of this on all our plumbing vent pipes but bought this larger size for a radon mitigation pipe. However this one has the flat foot at the base that the others don't. My contractor had to cut the flat foot off to make it fit. It looks nice and should perform it's designed function. The other sizes get 5 stars. This one only 4 because of the extra work to cut off the flat base. April 21, 2015
Rated 4.0 out of 5.0 by roof repair This product fit the needs to repair a worn out flashing. The product was very easy to install without any special tools required. July 22, 2014
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