Fixing battens to brick & block (moved from general)

[RickH]

Need to fix a load of 38mm treated batten to exterior brick and block walls. There is not much imposed load ... these are battens onto which will be fixed wood cladding.
Wall has earth on one side so brickwork is wet .... will fit a dpc between batten and wall to help.

Battens will vary in length depending on wall height, between 400 & 600mm high

Looking for a good fixing screw that will last, As batten is 38mm thinking of using 100mm screws ... would give a good 60mm fixing. ..... had considered 2 of these per batten ...
http://www.screwfix.com/p/dewalt-countersunk-tapper-concrete-screw-6-3-x-101mm-100-pack/49120

However on a bit of Googling saw some comments such as http://tinyurl.com/hnvntpv

That says you should not use these for batten fixing - only plug & screw method.

Anybody any comments as to best approach and what screws ...

 

[jj4091]

I think I would be using stainless steel screws if the brickwork is constantly or very often wet.

 

[theprinceofdarkness]

Same here, those screws that drive into concrete have their plating scraped off as you drive them in, so they rust and expand as they rust. This could cause problems in the long term as they might crack the bricks. I would use stainless screws and even put a squirt of silicon into the hole before the plug.
Frank

 

[footprints]

I would go stainless too.