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revgeareng
Fiber Siding
revgeareng

With the vast amount of information out there on total wall systems, I have settled on fiber siding for my house. My two main areas of confusion are underlayment system, and corner board material. There seems to be a great debate between tyvek and felt, and a rain screen system. In the recent clapboard siding article tom had tyvek down, but flashed with felt and made a rain screen type system with multiple layers of felt. Is this or would this be acceptable under fiber? Also corner boards??? Cedar or fiber. Then if fiber face nail or use the clip system. I do have some areas where I have an octagonal bump out. I was leaning towards cedar for ease of cutting. Any help would be greatly appreciated.

HoustonRemodeler
Re: Fiber Siding
HoustonRemodeler

Which type of fiber? Cement or wood ?

revgeareng
Re: Fiber Siding
revgeareng

It will be cement hardie plank. Unless someone has a better brand.

HoustonRemodeler
Re: Fiber Siding
HoustonRemodeler

Most folks never bother to read the instructions that come with Hardie Plank. Take the time, there's lots of useful information there.

Personally I don't depend on the Tyvek or tar paper to be the primary waterproof layer. That's what the Painted Hardie is for. To accomplish this I follow the installation instructions and NOT depend on caulking to make the siding waterproof. The little slips of tar paper at the non-caulked butted joints is important (and usually skipped)

The proper flashing at windows and doors is important.

When it comes to corners, my preference is to follow the method in use long before caulk was invented; run the planks to the corner, then cover the planks at the corner in Hardie Trim (not butting the trim to the plank)

All fasteners are hidden aside from the trim nails.

Mastercarpentry
Re: Fiber Siding
Mastercarpentry

I agree with HoustonRemodeler as best, but most folks don't like the 'open' corners so I butt them and caulk. Tyvek goes everywhere, rain screen optional, and on corners I use felt cut a 1/2 roll wide centered and tacked over the Tyvek. Lap joints do need the felt strips (under the top and over the bottom) as even when caulked these often open up. Flashing the penetrations is critical with all types of siding; IMHO this cannot be over-done, only not done well enough.

Hardie, like so many other engineered materials, seems to always be lacking somewhere in details as if nobody who designs the stuff has ever actually done the work in the real world or seen the results that occur over time. I'm not a fan of this stuff but if installed well it's good and there are a lot worse choices you can make.

Phil

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