Dumb question of the month, DPC - ridged face up?

[epsilonGreedy]

Too embarrassed to elaborate further...

[PeterW]

Doesn’t matter. 

[Mr Punter]

Unroll over the blocks with the "inside" facing up.

[PeterW]

..?? Roll I’ve got in my hand has same both sides...  

[epsilonGreedy]

14 minutes ago, PeterW said:

..?? Roll I’ve got in my hand has same both sides...  

 

 

Mine 100mm wide from Capital DPC has a diagonal grid pattern embossed from the other side (inside of the roll).

[epsilonGreedy]

26 minutes ago, Mr Punter said:

Unroll over the blocks with the "inside" facing up.

 

 

I like that idea and hope the dpc manufacturer anticipated such a workflow with the ridgy face ending up on the right side.

 

Thinking back to the age of 5 when I watched a house being built I recall dpc was made from a material like tarry roofing felt which had better inherent surface friction hence no concerns about "slip planes".

[Brickie]

1 hour ago, epsilonGreedy said:

Thinking back to the age of 5 when I watched a house being built I recall dpc was made from a material like tarry roofing felt which had better inherent surface friction hence no concerns about "slip planes"

... though it does give an unsightly bulge as it’s compressed out by the creep of the building. 

[PeterW]

5 hours ago, epsilonGreedy said:

 

Mine 100mm wide from Capital DPC has a diagonal grid pattern embossed from the other side (inside of the roll).

 

Odd.... Visqueen is embossed both sides ....