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Started by Slobbermonster on 18 May 2008. 37 replies.

Originally posted at johnlsayers.com, topic 10625.

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Zoinks! No drawings? Overthegarage....oh boy, can we build it yes we can!! What will be done to alter the effect of being off ground?
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that door inside looks pretty tiny ;-)
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What is that material in the facade of the building ? Some kind of portland cement ?
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Just out of interest, what material will you be using for the roof? Tile ect? Its interesting to see that in america you guys use mostly wood for your houses, in South Africa, 1 in 100000 will be built like this.
I'm going to move this to the construction forum where it is more appropriate. cheers john
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Fantastic. Keep the pictures coming. Andre
Cool! I like the idea that you could get on the roof and jump off and almost grab an overhead power line! Looks closer then it probable really is:)
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Me either :) I'm agast and ajar that you have no moisture membrane between the osb and your siding!
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Slobbermonster wrote:
The upper part will be tyveked (barrier) the lower is just a garage so no need. It's better for it to "breath". we use Tyvek more to restrict air infiltration than a true moisture barrier The place where I live is in a desert valley, average rainfall is about 6 inches a year with very low humidity year round- the last 45 days have been over 90 degrees with zero rain (typical)
Tyvek is intended to serve the purpose of an air infiltration barrier and direct water barrier - (it breathes and easily allows wall cavities to adjust to the normal outdside humidity (in other words - a molecule of water will not pass through it - but a molecule of vapor will). The walls truly breathe with Tyvek - it only stops the passage of wind - breathing is the ability to acclimate the wall cavity to the same humidity levels as the outside world - and allowing any moisture that enters the wall from inside the structure to escape in the process. It does not mean the wind can pass through it. That having been said - I am surprised to see that your local building codes do not require building paper behind the siding even on a garage - that is standard fare in any building codes I have come in contact with - it is intended to protects the sheathing (which is structurally required for the building) from damage in the event that the siding should become damaged or otherwise fail to properly protect the structure from the elements. For example - the IBC requires at the least that 15# felt paper be installed before applying siding to a building (any building) - that is in Section 1404.2 entitled "Water Resistive Barrier" Even 6" of water a year can damage structural sheathing if ignored long enough........ once it begins to delaminate it is structurally useless - and that could happen in one month if there was a large enough leak. Rod.
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Slobbermonster wrote:
A structure down here doesn't even have to have osb if you choose to use sheet siding instead of lap siding
Makes perfect sense, sheet siding having at least the same dimensions as structural sheathing. Horizontal lap siding does not have the required resistance to maintain the structural integrity of a building. But running tyvek on the upper half and not doing a complete lapped covering of the entire building most likely voids the siding warranty anyway. You don't need rain to create water. Wind can push snow into the lap joints where it begins the deterioration process. Did you paint any of the siding where you had to cut it? Read your warranty :)