Suggestions for fastening glulam beam in attic.

[MattiasJohansson77]

Hello!

I am planning to take down a load-bearing wall, and in order not to lower the ceiling height, the glulam beam to be used will be placed in the attic so that the rafters hang on it instead of being supported by it.

The beam will be 4.7 m long and have a dimension of 90x315.

Now to the question: How should the beam be attached to the rafters?

Should I use metal straps or simply place studs on both sides of the rafters and nail everything together that way?

Grateful for any help!

Best regards, Mattias

 

[Krawk]

Metal straps shall be used. Wooden studs can work but one must be very sure of what they are doing and the detailed execution. Otherwise, galvanized construction fittings are used.

However, everything must be correctly dimensioned to work in any case.

 

[prototypen]

One, two, or four pieces of 45x45 per cross from the underside of the beam to the top of the glulam, glued and screwed.
Fork anchor can also be used ClasO 31-1784.

Protte

 

[MathiasS]

I have installed angle irons (originating from some old workshop shelving system) for stabilization. On each rafter on both sides of the beam. As solid as a rock.

 

[prototypen]

MatiasS, you take what you have (but apparently, it wasn't K Varg who said this)

Protte

 

[MathiasS]

There apparently was a picture of this.

 

[injonil]

Not the easiest to get one of those fellas up through the attic stairs, I imagine!

 

[prototypen]

You have to bend it a bit to manage the curves.

Protte

 

[injonil]

Ah, that's how you do it!

 

[MathiasS]

The difficult part was bending it around the chimney....

 

[MattiasJohansson77]

My problem is that I will not be able to access with any fixings on one side of the glulam beam, see image.

Any good suggestions on how I can solve this without contacting an expensive carpenter?

Best regards, Mattias

 

[MathiasS]

It's just a matter of fastening the angle irons to the beam BEFORE you set it in place. Once it's positioned, you can attach the irons to the rafter it stands on.

 

[MattiasJohansson77]

Good thought that clearly should be tested!

 

[MathiasS]

.....otherwise, that type of space is something you have kids for, and a good reason to teach them to handle a screwdriver at an early age.

 

[el_ias]

Absolutely right