Tag Archives: siding backing

A Shouse, Adding Tin to Block Siding, and Truss Carriers

This week the Pole Barn Guru tackles the subjects of building a shouse with RV storage, how to add tin to block siding, and truss carriers vs notched posts.

DEAR POLE BARN GURU: Good morning!

My wife and are currently going to market with our home in Lakeville and are considering our next steps.  We have a great deal of interest in exploring an affordable option for our current needs which include about 1,500 SF of residential space and then remaining storage for a 45’ motorcoach, our vehicles/toys, shop and an above ground “block” safe room.  As we have no idea what the cost, or practicality, of this option is we felt it would be a good first step to determine your design services and simply what you have to offer in terms of options.

We do not have a piece of land acquired (though it would likely be in S/SE MN) as we need to first determine the viability of the option and then get a better sense for what the area counties allow/require.

Hopeful you can assist! MITCH & WENDY in LAKEVILLE

DEAR MITCH AND WENDY: Thank you for your interest! Our team members at Hansen Pole Buildings are barndominium experts. Basically your only limitations will be imagination, budget and available space.

Links in this article should answer many of your questions: https://www.hansenpolebuildings.com/2019/10/show-me-your-barndominium-plans-please/.

 

DEAR POLE BARN GURU: I came across this sight and found it very informative.

I have a question:  I have a 8′ block foundation with 6′ above the block that is tinned. I want to tin the block to match.

Tinning is not the problem but what or how do I fasten the tin to the block?

Type of fasteners work best? Later, BRIAN

DEAR BRIAN: Thank you for your kind words. Your steel siding should be screwed onto 2×4 horizontals. These 2×4 can be attached to your block using Tapcon concrete screws. Attach steel siding to 2x4s using 1-1/2″ powder coated diaphragm screws.

 

DEAR POLE BARN GURU: Should the top boards be on the inside and outside? MARK in LAWRENCEBURG

DEAR MARK: By “top boards” I will guess you are placing ‘truss carriers’ (headers) between columns in order to support trusses. In my humble opinion it would be best to utilize a two-ply ganged prefabricated wood roof truss at each column (notched in) and eliminate carriers entirely. It is far cleaner structurally as you eliminate numerous connections and if a failure is going to occur, it is most often at a connection.

In direct answer to your concern, placement of your top boards and their proper attachment will be called out for on your engineer sealed building plans. Should you not be building from an engineered plan, it would be prudent to invest in one’s service now, before a crucial design flaw becomes a failure.

For extended reading on truss carriers, please see: https://www.hansenpolebuildings.com/2018/10/what-size-truss-carriers/

 

 

 

 

 

There ARE some truly excellent builders: Hansen Building Disaster Part II

There ARE some truly excellent builders…

This just isn’t one of them.

In our last episode, the ‘builder’ had botched the shearwalls. A minor issue compared to what comes next.

This building was designed to have enclosed overhangs on all four sides.  On the endwalls the roof purlins project over the top of the end truss to support the overhang.

I said, “the purlins project over the top of the end truss to support the overhang”.

Obviously this escaped said “builder” as he cut off all of the purlins and fit them nicely behind the end truss.

The end truss was to have been lowered so the purlins could go over the top of it. The distance to lower the end truss is only spelled out twice on the plans, so it could easily have been missed. Well, maybe not easily. There is also a detail on page four of the engineered plans at 1-1/2” per foot which shows exactly this circumstance.

If this wasn’t enough, an entire chapter for the Hansen Pole Buildings’ Construction Manual is devoted to this overhang sequence!

But wait – there is more.

And it gets even (if this is possible) worse!

See the pretty truss on the end of the building? Not only is it 5-13/16” too high, it is designed to be placed into notches cut into each of the end and corner columns.

The lack of adequate bearing on these columns is a huge structural challenge, as under a load there is little to keep the truss from wanting to slide down the face of the column except nails.

When end trusses are properly notched in, there is 2×4 siding backing placed flat on the face of the bottom and top chords of the truss. A horizontal 2×4 is to be placed at mid height of the truss to attach the siding to, so it is not over spanning the capabilities of the siding.

The siding backing on the bottom chord of the truss also serves as bracing to create a three inch thick member, reducing the chances of the end truss bottom chord buckling under extreme loading conditions.

Stay tuned to this channel – the fun is not over yet!