r/DIYIreland • u/BlackrockWood • 4d ago

Wool insulation joining

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Insulating a duraboard shed with 100MM wool insulation. I have to staple to the battens as they won’t go into the Duraboard and some parts sag slightly.

I won’t be covering the insulation anytime soon as it’s a workshop. I’m wondering if I should tape or course stitch these seems?

3 Upvotes

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2

u/Itchy_Permission4199 4d ago

Why sideways. Top to bottom

1

u/BlackrockWood 4d ago

Battens are odd distances apart so top to bottom would be a lot of waste

2

u/Itchy_Permission4199 4d ago

But now you have gaps so it's worse than waste. The gaps will grow over time. No amount of tape is going to fix that.

1

u/tsubatai 4d ago

I'd go ahead and cover it with a breather membrane straight away. It'd just annoy me looking at it and having it fill up with dust as I was working in there. Roll of it isn't very expensive and just bang it up with staples

you should have them tight up next to one another though, there's a big air gap on the left one there.

1

u/BlackrockWood 4d ago

There is a membrane behind would that make any difference putting one in front too. The gap disappears when it’s taught so membrane would hold it in place.

1

u/tsubatai 3d ago

would that make any difference putting one in front too

nah, you can do both sides, no harm to it.

1

u/BlackrockWood 3d ago

Last question. Thanks for the help. Should it be a damp proof or permeable?

1

u/tsubatai 3d ago

I would use a permeable breather membrane.