Purlin
In architecture, structural engineering or building, a purlin (or historically purline, purloyne, purling, perling) is any longitudinal, horizontal, structural member in a roof except a type of framing with what is called a crown plate. In traditional timber framing there are three basic types of purlin: purlin plate, principal purlin and common purlin.
Purlin plates in wooden construction
A purlin plate in wooden construction is also called an "arcade plate" in European English, "under purlin", and "principal purlin". The term plate means a major, horizontal, supporting timber. Purlin plates are beams which support the mid-span of rafters and are supported by posts. By supporting the rafters they allow longer spans than the rafters alone could span thus allowing a wider building. Purlin plates are very commonly found in large, old barns in North America. A crown plate has similarities to a purlin plate but supports collar beams in the middle of a timber framed building.
Principal purlins in wood construction
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For All Tomorrow's Lies
by: BerlinA man is walking alone
A woman cries at home
They could be anyone
Without each other, how
Could they live through all of the lies?
Intentions don't provide
So cling to those who you love
The only answer
Stay close and live as one
Through rain and darkened skies
You have the love you need
For all tomorrow's lies
They tell you try to have hope
And fight for all you can
These words, you've heard them before
So easy to believe
Stay close and live as one
Through rain and darkened skies
You have the love you need
For all tomorrow's lies
Stay close and live as one
Through rain and darkened skies
You have the love you need
For all tomorrow's lies
A man is walking alone
A woman cries at home
They could be anyone
The only answer
Stay close and live as one
Through rain and darkened skies
You have the love you need
For all tomorrow's lies
Stay close and live as one
Through rain and darkened skies
You have the love you need
For all tomorrow's lies
For all tomorrow's lies
For all tomorrow's lies
For all tomorrow's lies
For all tomorrow's lies