How To Locate Timber Beams Into Solid Wall

[EViS]

Our architect has specified a couple of load-bearing beams which are in the form of a couple of timbers bolted together. These are to then be supported by solid walls (some internal and some external).

What's the best way to sit these in the walls, should the ends be wrapped in a DPM (or something similar)? Or do we just slot the timbers in and mortar around the timber?

 

[Jackrae]

Why timber and not steel coated or galvanised ? If into an outside wall timber will rot.

 

[EViS]

It's only to support some stud walls, so steel would be highly over-engineered.

 

[noseall]

Slot em in and point with mortar and/or silicone mastic.

Treating the joist ends with preservative would not hurt either. Belt and braces and all that.

 

[noseall]

Slot em in and point with mortar and/or silicone mastic.

There are sleeves available to help counter joist shrinkage and subsequnt air leakage, but this may or may not apply.

Treating the joist ends with preservative would not hurt either. Belt and braces and all that.

Oops bit of an edit faux pas!

 

[^woody^]

Design wise, it is nonsense to specify structural timber beams to be built into walls

But if your architect is designing, then he should designing how to install these

 

[noseall]

Design wise, it is nonsense to specify structural timber beams to be built into walls

But if your architect is designing, then he should designing how to install these

Sounds to me like all he is doing is doubling up some joists under a stud wall.

If so, typical standard stuff.

 

[^woody^]

Standard construction yes, good design practice, no

 

[noseall]

Standard construction yes, good design practice, no

Why is it bad practice to build joists into a wall?

 

[EViS]

Design wise, it is nonsense to specify structural timber beams to be built into walls

But if your architect is designing, then he should designing how to install these

Sounds to me like all he is doing is doubling up some joists under a stud wall.

If so, typical standard stuff.

Yes, this is their purpose.

 

[EViS]

Standard construction yes, good design practice, no

Would also appreciate your point of view on why this is bad design practice and an alternative that you may be able to think of?

 

[chickenlips]

Bumping this as I'm interested in hearing your view as well woody

 

[russellsmiler]

unless I am reading this totally wrong!!

You are installing timber joists between 2 walls?
asume that these joists are going to carry a floor?
and that in a location you will be building a stud wall on the 2nd floor and that the said joists are carrying the stud wall load?

Questions
1. are you installing a series of joists by other means (hangers) and just going to build in were required for supporting stud wall .

2. Is the studwork going to run paralell with joists and directly above the built in joists.

3.Is the studwork parralell but offset to joists, or possible at 90 degrees.

is it purely the stud wall with standard finishes (12mm plasterboard and skim each side)

Russell

 

[luisdesign]

These days, good design practice would be to sit joists on joist hangers, not build them into the walls.

 

[chickenlips]

Again, why is that good design practice ?