Splicing glulam beams vertically?

[Glenn123]

Hello everyone,

Can you splice glulam beams vertically?

I am going to install a conservatory with a mono-pitched roof, but to achieve a proper roof slope, the conservatory's wall beam needs to be placed above the facade the conservatory stands against. Garage building with a flat roof.

I plan to bolt a 42x450 glulam beam to the rafters on the garage roof. This glulam beam will then stick up about 150mm above the roof of the garage building. On this glulam beam, the conservatory's wall beam of 42x225 will be placed. Then splice the two glulam beams together with about 300mm long flat bar/perforated plate with through bolts and washers on both sides of the glulam beams. The beams' length is almost 6.7m.

Can this be done? There will be approximately 150+225 = 375mm sticking up above the roof the conservatory stands against, so there will be some wind loads pressing on the splice.

 

[justusandersson]

To achieve full cooperation between timber vertically, the parts must be glued. Screw gluing can be impractical, and then clamps and glue pressers must be used.

 

[prototypen]

You should be able to order a balk from the factory that has the right height.

Protte