Wooden or steel purlins?

[phillipe]

Be to expensive. Best way would be glue-lam timber

reckon gluelam isnt cheap,

 

[RWG Contracts]

reckon gluelam isnt cheap,

Be the best option though

 

[phillipe]

Be the best option though[/Q
wouldnt sag over time ?

 

[RWG Contracts]

No they're engineered not to

 

[phillipe]

No they're engineered not to

i know used quite a few,but they are only timber and glue,same crappy quick grown timber,surely overtime they will sag under their own weight?

 

[RWG Contracts]

i know used quite a few,but they are only timber and glue,same crappy quick grown timber,surely overtime they will sag under their own weight?

Shouldn't do. In order to sag the glue will have to fail. I did it on my degree course but can't remember the real reason

We did a test where we made a gluelam beam and then loaded it with weight for a few weeks and it never moved where as a normal piece of wood the same size had bowed

 

[phillipe]

Shouldn't do. In order to sag the glue will have to fail. I did it on my degree course but can't remember the real reason

We did a test where we made a gluelam beam and then loaded it with weight for a few weeks and it never moved where as a normal piece of wood the same size had bowed

fair call,

 

[phillipe]

Shouldn't do. In order to sag the glue will have to fail. I did it on my degree course but can't remember the real reason

We did a test where we made a gluelam beam and then loaded it with weight for a few weeks and it never moved where as a normal piece of wood the same size had bowed

how did you make one?

 

[RWG Contracts]

how did you make one?

Just planed strips of timber down and glued them together. I've made a few glue lam items. Made a garden shed with a curved roof once

 

[RWG Contracts]

 

[phillipe]

nice ,must dig out me photos ,made a shepherds hut for a chap last year ,fully insulated etc ,similar to ones shed

 

[euroliner]

just finished a 60 x 30 shed and used 1.6mm galv purlins through out .................... NEVER EVER AGAIN , took about 600 drill bits and almost two broken arms over 3 days , in comparison did a 3 link lean to last year in half a morning

 

[Forever Fendt]

just finished a 60 x 30 shed and used 1.6mm galv purlins through out .................... NEVER EVER AGAIN , took about 600 drill bits and almost two broken arms over 3 days , in comparison did a 3 link lean to last year in half a morning

are you drilling the zeds then

 

[euroliner]

are you drilling the zeds then

yea drilled each one , its a roof over an existing outside silage clamp that just wasnt bang on square so couldnt take the chance of getting them punched

 

[RWG Contracts]

yea drilled each one , its a roof over an existing outside silage clamp that just wasnt bang on square so couldnt take the chance of getting them punched

should have got slots punched, about 100mm long

 

[euroliner]

should have got slots punched, about 100mm long

life is a unforgiving learning curve

 

[Pan mixer]

life is a unforgiving learning curve

A mag drill will do them with a metal plate behind to make the magnet stick properly.

 

[Forever Fendt]

yea drilled each one , its a roof over an existing outside silage clamp that just wasnt bang on square so couldnt take the chance of getting them punched

clamp zed in place on cleat ,get hole saw with no pilot drill bit in the arbour drill hole through purlin with plenty oil squirted on to keep it cool,they drill very easy start slow and keep drill speed down so you don't burn out drill bit