Hilti GX120 fastener gun

[Donald]

Considering getting one of these (maybe used) to attach rigid foam to concrete block. Looks like the easiest way to do it

New almost $2000. Used from a couple hundred to a thousand dollars.

Are these fastener guns as good as the sound?

Good for 2" foam board?

Do the guns wear out or if it was taken reasonable cars of a used one should be fine?

 

[JHZR2]

Is it a propellant driven fastener? .22?

 

[facility1]

if you are fastening foam board to block ,why not use some of the grab it construction adhesive stuff works well,or Liquid Nails Quik grip,

 

[burbguy82]

Hilti guns are the best in the business. There is really no faster way to do it. They can wear out, but it is unlikely you will achieve that. It is a gun, it gets dirty, it must be treated like a gun. Hilti also has all the fasteners of course.

Ramset, is another, much lower cost tool, but no where near the quality.

How many fasteners are you needing to install?

What is the reason for the foam? Crawlspace encapsulation or water proofing?

 

[Donald]

Looks like I need the X IE tool. Not the GX120.

 

[Donald]

Hilti guns are the best in the business. There is really no faster way to do it. They can wear out, but it is unlikely you will achieve that. It is a gun, it gets dirty, it must be treated like a gun. Hilti also has all the fasteners of course.

Ramset, is another, much lower cost tool, but no where near the quality.

How many fasteners are you needing to install?

What is the reason for the foam? Crawlspace encapsulation or water proofing?

I am considering doing crawlspace encapsulation. With Bora foam board.

My first hurdle is my crawlspace opening is about 18x30. Guess. It's like the size of a basement window.

How to get the sheets of 4x8 foam in there. I can cut the foam on my lawn. But don't want to be piecing together a lot of small pieces to insulate the block wall.

Actually I am up in the air about crawlspace encapsulation. I have your basic builder grade plastic sheeting vapor barrier. Not taped. Nothing on wall. Insulation in ceiling of crawl space. My dehumidifier keeps the crawl space around 40% RH. Which is fine.

But encapsulation would allow dehumidifier to run less, saving money.

When I get really old and sell this house will a home inspector ding the crawlspace saying it's not encapsulated. Even though the RH is fine.

I figure I should encapsulate the crawlspace when I am 70 if I am going to do it Might not be able to do it at 90.

 

[DriveHard]

Is there a reason spray foam insulation would not work? Learning here.

 

[burbguy82]

I am considering doing crawlspace encapsulation. With Bora foam board.

My first hurdle is my crawlspace opening is about 18x30. Guess. It's like the size of a basement window.

How to get the sheets of 4x8 foam in there. I can cut the foam on my lawn. But don't want to be piecing together a lot of small pieces to insulate the block wall.

Actually I am up in the air about crawlspace encapsulation. I have your basic builder grade plastic sheeting vapor barrier. Not taped. Nothing on wall. Insulation in ceiling of crawl space. My dehumidifier keeps the crawl space around 40% RH. Which is fine.

But encapsulation would allow dehumidifier to run less, saving money.

When I get really old and sell this house will a home inspector ding the crawlspace saying it's not encapsulated. Even though the RH is fine.

I figure I should encapsulate the crawlspace when I am 70 if I am going to do it Might not be able to do it at 90.

i am not a fan of encapsulation. to do it properly, the space needs to be conditioned. it has its draw backs just like anything else.

 

[Donald]

Is there a reason spray foam insulation would not work? Learning here.

Bora foam board is what I would use. End it 3" below sill for termite inspection area.

I would use foam on rim joists.

Bora foam board is made with boric acid which kills bugs and termites if they eat it.

 

[Donald]

i am not a fan of encapsulation. to do it properly, the space needs to be conditioned. it has its draw backs just like anything else.

I am not sure I want to incorporate my crawlspace into the first floor HVAC if I encapsulated. But I might consider a minor amount of ventilation to exchange the air a little.

 

[burbguy82]

I am not sure I want to incorporate my crawlspace into the first floor HVAC if I encapsulated. But I might consider a minor amount of ventilation to exchange the air a little.

That kind of defeats the purpose of encapulation, and could have adverse effects. I would not do it.

You current crawl has conventional vents in the brick right?

Do you have moisture issues?

 

[Donald]

That kind of defeats the purpose of encapulation, and could have adverse effects. I would not do it.

You current crawl has conventional vents in the brick right?

Do you have moisture issues?

Current crawlspace has all vents blocked off. It's dry. Two sumps with sump pumps that always looked dry. Never have gone on that I can tell.

A dehumidifier keeps the RH at 40% all the time. It seems to run 24x7 from what I see (I can see what is going on from a smart outlet).

When I crawl into the crawlspace it does not seem musty.

 

[burbguy82]

Current crawlspace has all vents blocked off. It's dry. Two sumps with sump pumps that always looked dry. Never have gone on that I can tell.

A dehumidifier keeps the RH at 40% all the time. It seems to run 24x7 from what I see (I can see what is going on from a smart outlet).

When I crawl into the crawlspace it does not seem musty.

Well unless you just want to do it, I see no reason to encapsulate the crawlspace. I think it creates more problems than it solves. If it is dry, then it is dry, and sealing the crawl will not make it any drier.

Yes it is nicer, but who cares, who dont live down there do you?

The nastiest crawlspace I have ever been in, was one that was sealed, and failed. Mold city. Had they not been sealed, I do not think that there would have been an issue.

To each his own though. The Hilti gun is good.

 

[Donald]

Well unless you just want to do it, I see no reason to encapsulate the crawlspace. I think it creates more problems than it solves. If it is dry, then it is dry, and sealing the crawl will not make it any drier.

Yes it is nicer, but who cares, who dont live down there do you?

The nastiest crawlspace I have ever been in, was one that was sealed, and failed. Mold city. Had they not been sealed, I do not think that there would have been an issue.

To each his own though. The Hilti gun is good.

I could still insulate the walls with Bora foam board without going the full encapsulation route. I don't think that would change how tight it's sealed.

I have fiberglass insulation up in the floor joists and aside from a piece here and there it's all up where it was installed and not hanging down.

But my dehumidifier (compressor) does seem to run all summer 24x7 to keep the crawlspace with a RH of 40%.

My math at 15¢ a KWH says it's costing $64 a month to run the dehumidifier during the non winter months.