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

Whats Up With LP Smart Side siding

workdog2 | Posted in General Discussion on September 22, 2010 10:45am

 LP Smart Side Siding & 1 x 4 Pre Primed Trim Boards do they really last 50 years ??

How do they know when it hasn’t been out that long ?

Thinking of using it on a small barn but 5/8′ T1-11 sounds beefer  than 3/8″ Smart side. 3/8″ is all they stock around here inless you order a bunch.

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

Replies

  1. rdesigns | Sep 23, 2010 10:04am | #1

    I re-sided my whole house with 3/8 thick 8" lap Smartside and trimmed everything with their trim products.

    I have the same Q as you about the 50 yr claims--obviously they are projecting what its lifespan will be based on tests and (probably) on playing the numbers:  the warranty extends only to the original purchaser and his buyer. Since the average American stays in the same house only about 5 yrs, the majority of installations would have to last only about 10 yrs for LP to be out from under their warranty obligation, and the few claims that they might have to pay out would come out of the profit on the many sales where they pay nothing, even if the product should fail.

    Sounds cynical? Well, I bought into it anyway, because of the recommendations of a high-end builder I trust who's used Smartside, and I did a little unscientific test of my own:  I dropped a cutoff piece into a bucket of water and left it there for over a month with no sign of de-lamination. It had no protection other than the factory-applied primer.

    T1-11 sheets would give you more structural strength, but you can also buy Smartside 4 x 8 panels in various thicknesses, and they make full line of trim, soffit and fascia.

    The Smartside lap siding is easy to work with, and you can lift a 16' length of it in the middle with no risk of it's breaking, unlike Hardie planks.

    1. workdog2 | Sep 23, 2010 10:52am | #2

      Thanks Rdesigns

      Thanks for the reply... I really like your way of testing.

      Part of this small barn is already done with T1-11, replacing the front panels all decayed.(not painted under trim) also building new doors. I'm thinking since Smart Side has to be painted, as the T1-11 I'll go with  whats already on the other sides of the building that way they all look the same. 4" centers on the T1-11 & Smart Side has 8".  But who knows I could use the Smart Side maybe it won't decay like the T1-11 did. For yoursake I hope not.

      Can you buy the trim at the big box stores Home Depot & Lowes?

      1. rdesigns | Sep 23, 2010 12:13pm | #3

        Can you buy the trim at the big box stores Home Depot & Lowes?

        Not at ours--I checked, but HD had only some of the 3/8" 4 x 8 panels, and their distribution center had no access to trim or much else.

        I bought mine at Lansing Corp. Supply.

        1. workdog2 | Sep 23, 2010 10:48pm | #6

          Thanks to all

          I stand corrected sounds like Smart Side panels are the right way to go, even though I can only get 3/8". Unless someone knows where I can buy just few panels of the 19/32" . "Where's the beef" 

          Never heard of Lansing Corp. Supply, Don't soppose thats any where around Grand Blanc MI. near the big city of flint.

          Again thanks to all... its nice to share info with others who have been there & back !!!!

          1. workdog2 | Sep 24, 2010 09:06am | #7

            More on Smart Side Siding

              For all who think smart side won't decay...  Check out this site http://www.siding4u.com/failing-siding-help.php 

          2. factotam | Sep 24, 2010 02:18pm | #8

            i dont think anyone is saying that smart siding wont decay, all wood siding and composite siding products will decay if they are not maintained, composite siding products are  lower end budget materials and will rapidly decay if not kept painted, it is water that works it way into the siding through voids that causes it to decay-the link you posted concerned the older lp sidings which for the most part were masonite, there were class action law suits in the past  that have already been settled concerning these products, smart siding is a newer version of composite composite and it is more weather resistant then the masonite sidings

            with siding,  you get what you pay for, but even if you use solid wood siding instead of a composite, it will still rot in certain parts of the country if it is not kept painted and sealed from the weather

            i have a customer who has had the older masonite siding on his house for the last 20 years and it is in perfect shape, but he paints it every few years

            http://www.sidingsolutions.com/pages/classtat.htm

          3. DanH | Sep 24, 2010 06:20pm | #9

            LP sidings were never "masonite".  Only Masonite sidings were "masonite", and both companies have produced a wide variety of composite sidings, with widely varying characteristics.

            We've had Masonite "Woodsman" tempered composite siding on our house for 20 years, painted it once since it was installed, and it's still in perfect condition.  Wood wouldn't come close to that performance.  Before that we had some other brand on the house, and it was going punk in ten years.  (But a non-trivial amount of the blame goes to the Olympic "Overcoat" flat latex paint that was popular when our house was built -- it pretty much let water go straight through.)

          4. workdog2 | Sep 25, 2010 12:37pm | #10

            smart siding

              Straight from the posted web site... http://www.siding4u.com/failing-siding-help.phd    What about Smart Lap®, Smart Side® siding and Smart Panel® siding?

            Our Opinion: We DO NOT advise installing this stuff, PERIOD!

            If you want this stuff installed there are plenty of companies that will install it for you.

            Due to LP Corp., their lawyers and our legal system - we CAN NOT say anything other than our OPINION - even then we have to be very carefull.  You will have to fill in the blanks.

            * Smart Lap®, Smart Side®, LP® and Smart Panel® are registered trademarks of the Louisiana Pacific Corporation

            Sorry If I touched any nerves. Probably holds up differrent in differrent parts of the country. (climate wise)

          5. DanH | Sep 25, 2010 02:25pm | #11

            It's the blessing and the curse of the Internet -- you can find sites that praise or condemn just about anything.  Hard to tell which are truely representative and which are oddball cases, made-up stories due to bad blood (or pure competition), or whatever.

          6. workdog2 | Sep 26, 2010 07:15pm | #12

            same

            Good thought, didn't think of that... good,bad & ugly to everything.

  2. DanH | Sep 23, 2010 03:49pm | #4

    Close to 20 years ago we resided our house with a product that closely resembles SmartSide, and used some similar stuff (PrimeTrim) for the fascias.  I do not regret that decision at all -- it's performed very well and still looks great.

    But of course the devil is in the details.  I was obsessive about priming/painting cut edges, careful caulking, etc.  And we used tin joints and corners, to eliminate any chance of failure there.

  3. factotam | Sep 23, 2010 09:36pm | #5

    t1-11 is not a good product to use

    smart siding is more weather resistant then t1-11, t1-11 has a lot of voids which let water in and causes it to delaminate, also unless you paint the bottom of the sheets and keep them painted, the bottom of the panels will rot

    i have some smart siding on a shed in my back yard that i never painted and 12 years later it is in good shape, i have some t1-11 on a garage on a rent house i replaced two years ago and primed and painted and it is already starting to show signs of problems

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

Custom Built-ins With Job-Site Tools

From building boxes and fitting face frames to installing doors and drawers, these techniques could be used for lots of cabinet projects.

Featured Video

SawStop's Portable Tablesaw is Bigger and Better Than Before

The 10-in. Jobsite Saw PRO has a wider table, a new dust-control port, and a more versatile fence, along with the same reliable safety mechanism included in all SawStop tablesaws.

Related Stories

  • Guest Suite With a Garden House
  • Podcast Episode 688: Obstructed Ridge Vent, Buying Fixer-Uppers, and Flashing Ledgers
  • FHB Podcast Segment: Finding the Right Fixer-Upper
  • Keeping It Cottage-Sized

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 332 - July 2025
    • Custom Built-ins With Job-Site Tools
    • Fight House Fires Through Design
    • Making the Move to Multifamily
  • 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

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