filling voids behind walls - no R value concern

[inphx]

I am building out a small office, toilet and shower in my garage. I do not want to create possible nest ecosystem for spiders or small critters.

Can anyone suggest a lower cost equivalent to fiberglass insulation? Fiberglass batting would work great for me but its pricey and i'm not looking for R value as primary concern.

 

[ItsNemo]

Insulation wouldn't stop critters either...seal the building so they don't get in in the first place.

 

[SGKent]

no but fiberglass batts will quiet the area. Looks like an illegal bedroom to me. If the neighbors notice it and complain better make sure there is a permit for it or you may be forced to rip it out. I was in real estate lending for 30 years and it happens all the time.

 

[TheShrine]

no but fiberglass batts will quiet the area. Looks like an illegal bedroom to me. If the neighbors notice it and complain better make sure there is a permit for it or you may be forced to rip it out. I was in real estate lending for 30 years and it happens all the time.

 

[NUTTSGT]

Do you really think R-11/13 is pricey ?

 

[Marctrees]

Will cost one $5 can of roach borax - found on all pest control shelves in grocery and Walmart.

Sprinkle heavily on bottom and top plates etc before wall is closed up.

Fiberglass insul will not encourage nor discourage pests, but will quiet the room a bit.

Marc

 

[rayra]

If it's in your garage in Phoenix you WANT to insulate. wth are you thinking, I'm not even that cheap and I'm a quarter Scots!

only thing cheaper is DIY cellulose blow-in insulation.

/and you will still need to sprinkle some borax all over and around the bottom sill, to keep the chitinous creatures at bay.

 

[matt_i]

I'm not in phoenix but around here insects are collected either by moisture or spiders by some kind of mini air-current, but it all drives back to moisture.

As Raya says the only lower-cost alternative is cellulose and that's a lot more work having to staple a net to one side or fix a bunch of holes in the drywall.

Roxul might be a better choice as it doesn't harbor organic growth but cheaper it is not. Fitting foamboard is also possible but also not less expensive and not less work.

 

[inphx]

Guys - thanks for the Borax tip. I revisited the cost - Home Depot doesent list the total coverage and promotes the "single" strip size ( https://www.homedepot.com/p/Owens-C...-Insulation-Batt-15-in-x-93-in-BF10/202676829 ) in looking at the label in the photo it says 11 pieces per bag.

Not a spare bedroom - a "clean" room office since i expect more car tinkering will be with electronics than greasy parts in the coming years.

 

[pcmeiners]

Do you really think R-11/13 is pricey ?

If he thinks fiberglass is expensive, wait till he checks out sheetrock and screw prices.

 

[readhead]

Need work on your framing skills. Bearing a floor load on a single top plate is not good. With no rim or blocks there is nothing to stop the floor joists from rolling over.

 

[inphx]

Need work on your framing skills. Bearing a floor load on a single top plate is not good. With no rim or blocks there is nothing to stop the floor joists from rolling over.

1st time framing and i guess it shows. The deck is 2x6 on 12" offsets. There are simpson u clips at the base at each end which helped in setting the stringers. The plywood is screwed down to the joists with 2 1/2" construction screws.

At 14' span that is supposed to be 50 lb per sq ft. I was going to store ladders and conduit up there not engine blocks.

So i should tack in 12" blocks because of concern of rollover? I was going to do a 2x6 across the exposed ends on both sides to seal it up - is that a hack or a reasonable corrective action vs blocks in between the joists?