Timber profile

[600rob]

Repairing/repainting the external timbers on my mock tudor house at the moment.

Ended up removing several of the vertical beams to replace or repair

The rear of the beam has groves as per the pic.

DSC_2795

• 600rob
• 21 Jun 2020

DSC_2794

• 600rob
• 21 Jun 2020

Guessing that this is to reduce weight?
& maybe aid drainage if water gets behind the beam??
Anyone know if this profile is still sold? (think its around 25 yrs old)
Or just replace with par

Does it reminds anyone else of decking timber??

 

[Ryler]

The grooves weaken the grain strength and helps prevent warping.
Thus adding strength.

 

[Toria J]

Does it reminds anyone else iof decking timber?

Yeah, it immediately reminded me of decking timber, though the planks I've experience of have grooves on both sides.
If you can't find the proper stuff, you may be lucky and be able to get some with grooves only on one side though?

 

[600rob]

The grooves weaken the grain strength and helps prevent warping.
Thus adding strength.

I see.
So should i avoid using par then?
And try to get a similar replacement?


Funnily enough quite a few of the existing boards have warped and curled away from the brick face.
I guess that will eventually happen regardless of the profile used. Its just a question of how quickly.
Found this timber which is of course decking specific and the grooves much shallower.... Wonder if this might have a similar effect on the properties of the boards that you mentioned?