I have a cold attic meaning the insulation is on the bottom. I would like to put flooring here so that I can use this area as storage without abusing it.
What do I need to pay attention for this job?
- There is already some kind of (a bit worn out) protection wrapping the insulation. Do I need to put anything else?
- I prefer screws over nails just because it is faster. Is it the right choice or can screws snap off over time if the house is moving slightly?
- Do I need to leave any space between the timber pieces in case they expand?
Right now it is winter in Sweden and this is how my attic looks!
Best Answer
First thing, I'll check the ceiling joists. In US/Canada it's not uncommon to use joists sized and spaced to only support the ceiling drywall below, e.g. they are not sized to support any kind of storage or any other regular activity in the attic. I'm not sure about laws and practices in Sweden, though.
Now, to actually answer your question: screws are perfectly fine. I'd just use a quarter or a similar coin to space timbers to allow for seasonal expansion/contraction. Unless you already have the timbers, I'd rather use strips of plywood or OSB, they are cheaper and do the job just as well. Just make sure they are small enough to be brought up into your attic.