FHB Logo Facebook LinkedIn Email Pinterest Twitter X Instagram Tiktok YouTube Plus Icon Close Icon Navigation Search Icon Navigation Search Icon Arrow Down Icon Video Guide Icon Article Guide Icon Modal Close Icon Guide Search Icon Skip to content
Subscribe
Log In
  • How-To
  • Design
  • Tools & Materials
  • Restoration
  • Videos
  • Blogs
  • Forum
  • Magazine
  • Members
  • FHB House
  • Podcast
Log In

Discussion Forum

Discussion Forum

Flashing/WaterProofing Question

| Posted in Construction Techniques on March 29, 2002 04:19am

Hello there-

Flashing/waterproofing question for you all out there.

Doing a job where I have finished tongue and groove cedar, 3/4″, on the exterior of the house.  It runs vertically.  I’m putting up a veranda over the porch.

I’d like to bolt a 2×6 to the house, and then run rafters out off the plate that has been bolted.  The question is:

— How can I make this waterproof, so that water does not run down the siding (especially in the grooves) and into the covered area?

I have a few ideas, but I wanted to see what some of you professionals thought.  I know it would have been better to do this first (bolt the plate, then side the house, so I could run the flashing under the siding, etc.) but it didn’t work out that way…

Appreciate any answers/thoughts out there.

Ron

 

Reply
  • X
  • facebook
  • linkedin
  • pinterest
  • email
  • add to favorites Log in or Sign up to save your favorite articles

Replies

  1. Fred_Lugano | Mar 29, 2002 08:11pm | #1

    Dear Ron,

    Your instinct was correct. To keep the porch roof dry, you'll need to tuck your roof flashing up the wall and under the siding underlayment.

    Regards, Fred

    [email protected]

    1. User avater
      DaveMason2 | Mar 29, 2002 09:27pm | #2

      If you're like me, and I know I am. :-) I would cut out the siding from the bottom of where you're gonna put that 2x6 to 2" above where the roofing is gonna be.So you'll end up with an eight inch wide by whatever length you need hole. Then slide the flashing up behind the siding, then bolt on the 2x6. I would leave the flashing loose until I was done roofing, and then attach it accordingly.

      Good luck, Dave

      This was to "all" not Nate

      Edited 3/29/2002 2:29:52 PM ET by DAVE_MASON

      Edited 3/29/2002 2:30:35 PM ET by DAVE_MASON

  2. Geoffrey | Mar 30, 2002 07:28am | #3

    Ron, one other method, make a kerf cut along the point where you want the flashing to be, set the blade at 22 1/2` or similiar, with the angle going up the wall!! Put your 2x on then sheath and roof as normal, then slip the flashing(with a slight crimp in it)into the kerf and let the bottom rest on top of the shingles as usual. You gotta be right on where you cut your kerf though!!

                                                                                 Geoff

  3. User avater
    JeffBuck | Mar 30, 2002 09:49am | #4

    There's your 3 options! Build it that way first. OR Cut out the siding and make as though you built it that way first. OR retrofit and kerf the flashing in.

    Option 1 is too late. Option 2 give you a chance to slip taller flashing up under the siding...depending on the blind nails.

    Option 3 is what most contractors would give ya if they were called in to build a roof after the fact. Only problem with option 3....it becomes more of a maintenence isue keeping up on the caulking that seals the flashing from the wood.

    But...even with No 2...the end grain above the flashing is still an issue...and caulking must be maintained. But it is cedar so it should do OK on it's own. Me......I'd do the quick kerf...and keep an eye on the sealant on top. Once in the kerf and under should do the trick.

    Just don't wanna trap any water between the siding and the ledger. Some running down even would be better......everything gets a chance to dry that way.....if it were exposed. Jeff

       *  Jeff J. Buck/ Buck Construction/ Pittsburgh, PA  *    

    2nd Generation Buck Const, 3rd generation Craftsman                         

    1. Geoffrey | Mar 31, 2002 10:21pm | #5

       Hey Jeff, option 2 or 3 no need to caulk, just paint/stain prior to installing flashing. I know that might be trickier on my method, but I also make the kerf so it is 1 1/2" above the shingled roof AND I put a small reverse hem on the leg that slips into the kerf, this keeps the water out and acts to keep the flashing from slipping back out of the kerf (similiar to re-flashing the counter-flashing on a chimney)

                                                                 Geoff

      1. User avater
        JeffBuck | Apr 01, 2002 09:02am | #6

        I was thinking about the new end grain of the vertical siding sucking up any standing water or snow.  Paint and.or stain would help....but I'm thinking over time...the wicking action would take over.

        Then again......when relying on caulking....sooner or later the caulk's gonna fail.....and possibly trap water in there....which would lead to a quicker failure than letting the paint/stain seal a bit and leaving some room for air circulation to dry things out. I know he said cedar...but wood's wood!

        I did catch the part about the angled kerf...which I think would add years to the siding.

        Still torn....don't know if there is a best way......for my area...which gets snow. I'd just try to get the end grain sealed up good. Jeff   *  Jeff J. Buck/ Buck Construction/ Pittsburgh, PA  *    

        2nd Generation Buck Const, 3rd generation Craftsman                         

        1. Geoffrey | Apr 02, 2002 03:59am | #7

          Hey Jeff , I agree , it's a toss-up. I'm in Boston area so we get snow too, just not this year!!!    

              I just like to use as little caulking as possible, and rely on the tried and true methods of the past, i.e. good carpentry and building practices.

             Geoff

Log in or create an account to post a comment.

Sign up Log in

Become a member and get full access to FineHomebuilding.com

Video Shorts

Categories

  • Business
  • Code Questions
  • Construction Techniques
  • Energy, Heating & Insulation
  • General Discussion
  • Help/Work Wanted
  • Photo Gallery
  • Reader Classified
  • Tools for Home Building

Discussion Forum

Recent Posts and Replies

  • |
  • |
  • |
  • |
  • |
  • |
View More Create Post

Up Next

Video Shorts

Featured Story

Podcast Episode 686: Brick Steps, Ground-Source Heat Pumps, and Greenhouses in Nova Scotia

Listeners write in about fireplaces affecting family harmony and bionic suits, before asking questions about brick steps, ground-source heat pumps, and building a dome greenhouse in Maritime Canada.

Featured Video

Micro-Adjust Deck-Baluster Spacing for an Eye-Deceiving Layout

No math, no measuring—just a simple jig made from an elastic band is all you need to lay out a good-looking deck railing.

Related Stories

  • Podcast Episode 686: Brick Steps, Ground-Source Heat Pumps, and Greenhouses in Nova Scotia
  • FHB Podcast Segment: Efficient HVAC for a New Build
  • Affordable Scans, Accurate Plans
  • FHB Summit 2025 — Design, Build, Business

Highlights

Fine Homebuilding All Access
Fine Homebuilding Podcast
Tool Tech
Plus, get an extra 20% off with code GIFT20

"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Fine Homebuilding Magazine

  • Issue 331 - June 2025
    • A More Resilient Roof
    • Tool Test: You Need a Drywall Sander
    • Ducted vs. Ductless Heat Pumps
  • Issue 330 - April/May 2025
    • Deck Details for Durability
    • FAQs on HPWHs
    • 10 Tips for a Long-Lasting Paint Job
  • Issue 329 - Feb/Mar 2025
    • Smart Foundation for a Small Addition
    • A Kominka Comes West
    • Making Small Kitchens Work
  • Issue 328 - Dec/Jan 2024
    • How a Pro Replaces Columns
    • Passive House 3.0
    • Tool Test: Compact Line Lasers
  • Issue 327 - November 2024
    • Repairing Damaged Walls and Ceilings
    • Plumbing Protection
    • Talking Shop

Fine Home Building

Newsletter Sign-up

  • Fine Homebuilding

    Home building tips, offers, and expert advice in your inbox.

  • Green Building Advisor

    Building science and energy efficiency advice, plus special offers, in your inbox.

  • Old House Journal

    Repair, renovation, and restoration tips, plus special offers, in your inbox.

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters

Follow

  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X
  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X

Membership & Magazine

  • Online Archive
  • Start Free Trial
  • Magazine Subscription
  • Magazine Renewal
  • Gift a Subscription
  • Customer Support
  • Privacy Preferences
  • About
  • Contact
  • Advertise
  • Careers
  • Terms of Use
  • Site Map
  • Do not sell or share my information
  • Privacy Policy
  • Accessibility
  • California Privacy Rights

© 2025 Active Interest Media. All rights reserved.

Fine Homebuilding receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.

  • Home Group
  • Antique Trader
  • Arts & Crafts Homes
  • Bank Note Reporter
  • Cabin Life
  • Cuisine at Home
  • Fine Gardening
  • Fine Woodworking
  • Green Building Advisor
  • Garden Gate
  • Horticulture
  • Keep Craft Alive
  • Log Home Living
  • Military Trader/Vehicles
  • Numismatic News
  • Numismaster
  • Old Cars Weekly
  • Old House Journal
  • Period Homes
  • Popular Woodworking
  • Script
  • ShopNotes
  • Sports Collectors Digest
  • Threads
  • Timber Home Living
  • Traditional Building
  • Woodsmith
  • World Coin News
  • Writer's Digest
Active Interest Media logo
X
X
This is a dialog window which overlays the main content of the page. The modal window is a 'site map' of the most critical areas of the site. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page.

Main Menu

  • How-To
  • Design
  • Tools & Materials
  • Video
  • Blogs
  • Forum
  • Project Guides
  • Reader Projects
  • Magazine
  • Members
  • FHB House

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Popular Topics

  • Kitchens
  • Business
  • Bedrooms
  • Roofs
  • Architecture and Design
  • Green Building
  • Decks
  • Framing
  • Safety
  • Remodeling
  • Bathrooms
  • Windows
  • Tilework
  • Ceilings
  • HVAC

Magazine

  • Current Issue
  • Past Issues
  • Magazine Index
  • Subscribe
  • Online Archive
  • Author Guidelines

All Access

  • Member Home
  • Start Free Trial
  • Gift Membership

Online Learning

  • Courses
  • Project Guides
  • Reader Projects
  • Podcast

More

  • FHB Ambassadors
  • FHB House
  • Customer Support

Account

  • Log In
  • Join

Newsletter

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Follow

  • X
  • YouTube
  • instagram
  • facebook
  • pinterest
  • Tiktok

Join All Access

Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features.

Start Your Free Trial

Subscribe

FHB Magazine

Start your subscription today and save up to 70%

Subscribe

Enjoy unlimited access to Fine Homebuilding. Join Now

Already a member? Log in

We hope you’ve enjoyed your free articles. To keep reading, become a member today.

Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine.

Start your FREE trial

Already a member? Log in

Privacy Policy Update

We use cookies, pixels, script and other tracking technologies to analyze and improve our service, to improve and personalize content, and for advertising to you. We also share information about your use of our site with third-party social media, advertising and analytics partners. You can view our Privacy Policy here and our Terms of Use here.

Cookies

Analytics

These cookies help us track site metrics to improve our sites and provide a better user experience.

Advertising/Social Media

These cookies are used to serve advertisements aligned with your interests.

Essential

These cookies are required to provide basic functions like page navigation and access to secure areas of the website.

Delete My Data

Delete all cookies and associated data