spray foam insulation

jonny z · LONDON, ONT

spray foam insulation

hemi43 · ONTARIO

Check with your insurance company first. I've heard that some companies wont insure you if you have spray foam.

Cat in the Hat · BRANTFORD, ONT

Not cheap!

I looked into it holy cow. Almost $8000

6" roxal was about $1600

Just sayin

34guy · MISSISSAUGA, ONT

I believe some of it is flammable and needs to be covered with drywall,

also some municipalities will still make you use a vapour barrier

like glen says better off to use batts

-- Edited by 34guy on Wednesday 30th of April 2014 09:25:59 PM

toomuchjunk · S/W ONTARIO

we sprayed our house. It really tightens the structure. We don't hear noise from outside. I'm happy with it.
I put roxul in my new shop just last fall. I wouldn't use just ordinary fiberglass insulation. Mice LOVE that stuff.
34 is right foam has to be covered. I worked in a house last week that was worth about two million.
The underside of the main floor has foam sprayed on about 800 sq. ft. of it with no barrier over/protecting it.
TMJ

wuga · PRINCE EDWARD COUNTY, ONT

Forget the R value, it's all about leakage and batts and vapor barrier leak. there are two kinds of foam and I confess I don't know the difference. Closed cell and open cell. I think using a vapor barrier with foam could be counter productive. Check around, rates vary quite a bit and you don't need the equivalent R value because there is no leakage. Two inches is usually sufficient. If you have an attic, you do the underside of the roof, therefore no massive heat loss boxes around pot lights. Also leaves the attic clean for storage. With a well sealed building, it keeps out the rodents. Did my home and then my daughters, amazing results. You can spray your own, but you need protective clothing and breathing apparatus and also a pro gun if you are doing a large area. It must be covered by drywall in living areas as it can give off fumes especially in a fire.

Warren

67c10 · SIMCOE, ONT

It was nice meeting you and carol the other day. Nice to put a face to the names. My dads shop in st williams is spray foamed. It holds the heat very well but tools and anything metal seem to sweat really bad. Rusts brand new tools in no time. He spends more time wiping down tools and cleaning them then he does working on his car lol

hemi43 · ONTARIO

67c10 wrote:
It was nice meeting you and carol the other day. Nice to put a face to the names. My dads shop in st williams is spray foamed. It holds the heat very well but tools and anything metal seem to sweat really bad. Rusts brand new tools in no time. He spends more time wiping down tools and cleaning them then he does working on his car lol

That's because the shop is not kept at a reasonably steady temperature. People that crank the heat when they go in their shops/garages are causing lots of damage. It's cheaper to just keep the shop warmer. I keep mine at 60 and turn it up to 69 when in use. No rusting !!

Gazoo · BADEN, ONT

Ceiling fans to circulate the air also help keep moisture down.

toomuchjunk · S/W ONTARIO

hemi43 wrote:
67c10 wrote:
It was nice meeting you and carol the other day. Nice to put a face to the names. My dads shop in st williams is spray foamed. It holds the heat very well but tools and anything metal seem to sweat really bad. Rusts brand new tools in no time. He spends more time wiping down tools and cleaning them then he does working on his car lol
That's because the shop is not kept at a reasonably steady temperature. People that crank the heat when they go in their shops/garages are causing lots of damage. It's cheaper to just keep the shop warmer. I keep mine at 60 and turn it up to 69 when in use. No rusting !!

Inducing fresh air would also help. It's like the heater on a car. If you put heater on circulate so no fresh air is brought in the windows will fog up. Some vehicles will not go to circulate while on defrost for that reason. Fresh air heats better/easier than stale. Just my opinion

TMJ

GhostPost · ONTARIO

These guys are great
www.gni.ca/

oldkoot · BROCKVILLE, ONT

hemi43 wrote:
67c10 wrote:
It was nice meeting you and carol the other day. Nice to put a face to the names. My dads shop in st williams is spray foamed. It holds the heat very well but tools and anything metal seem to sweat really bad. Rusts brand new tools in no time. He spends more time wiping down tools and cleaning them then he does working on his car lol
That's because the shop is not kept at a reasonably steady temperature. People that crank the heat when they go in their shops/garages are causing lots of damage. It's cheaper to just keep the shop warmer. I keep mine at 60 and turn it up to 69 when in use. No rusting !!

Also have a humidex control system in the shop, set it for 50 or 60% and moisture is not a problem, temperature variation doesn't matter.

fatchuk · ST MARYS, ONTARIO

I am a foam guy believer..I have my House and shop foamed..did that over 20 years ago..Yep it cost more upfront...but She is air tight and feels warm and cosy and I am sure it has saved me lotsa-bucks on heat and also helps to KEEP the shop cooler in the summer...I always shut the heat down to about 36 degrees over the weekends and Christmas the stat is programed ..I only work 4- 9hr days a week in our shop, REMEMBER Hemi said I am old.. so it's shut down for 3 days out of seven and I have no issues with sweat or rust on my tools..but they are all oily.. biggrin they are never waxed, just wiped down with oily rags.. I do have a couple big commercial ceiling fans in the shop running all the time..I would do the foam again in a heartbeat if I could afford it ..heat and energy cost are not going down ..they are more than likely going to double or triple in the future and the cost of insulation is going to increase as well..everybody is raping us for energy costs or anything energy related..It's trending in Ontario...So make sure you VOTE LIBERAL.. furious

51 Styline · NIAGARA FALLS, ONT

Today is the day the LIEberals lay down their plans for screwing us for another 4 years.

Seeker1056 · DOURO, ONT

Okie dokie
Chief Buildign Official here... so some truths and Code requirements

1 lb and 2 lb foams - one is white, the others are all different colors depending on which manufacturer you get .

1lb requires a vap0our barrier, most of the 2lb don't

1lb is considerably cheaper, but doesn't do half the job

it is the building code that says one must cover the foam in some manner as it is considered to be carcinogenic in a fire situation.

Insurance companies dont regulate nor refuse to insure due to foams. that's a wive s tale. Now - have it installed without a Buildign Permit and then you may be in trouble in more ways than one

feel free to ask any questions you like and I will get the truth for you

Ken

Schnitz · MILTON, ONT

As a home designer I would recommend 2lb medium density closed cell foam and go as thick as you can.
Some inspectors will require you to cover it with vapour barrier no matter what the code or anyone else says. Just stuck in their ways I guess.
Even the code doesn't make any sense in this regard. As if a 6 mil plastic sheet is going to stop fumes of the spray foam melting. The bloody vapor barrier is going to melt at the same time as well. Now some say it keeps the moisture from the studs penetrating and effecting the drywall (staining and/or mould).
For the minimal cost it's not worth the argument and it seems to keep everyone happy.

How are the exterior walls going to be built?

Are you using pre-engineered roof trusses or conventional lumber for the roof?

-- Edited by Schnitz on Thursday 1st of May 2014 03:59:24 PM

-- Edited by Schnitz on Thursday 1st of May 2014 03:59:58 PM

-- Edited by Schnitz on Thursday 1st of May 2014 04:00:19 PM

Canadian Poncho · PEI

I had my steel workshop in Ingersoll insulated with spray foam. I loved it. Super airtight and efficient. I used Great Northern out of Woodstock. It was fireproof.

http://www.gni.ca/

Mr Samis · BRIGHTON, ONT

There is also a paint that helps reduce the burning , should a fire occur. Just not sure where to buy it.

Rustynuts · MAGNETAWAN, ONT

Seeker1056 wrote:
Okie dokie
Chief Buildign Official here... so some truths and Code requirements

1 lb and 2 lb foams - one is white, the others are all different colors depending on which manufacturer you get .

1lb requires a vap0our barrier, most of the 2lb don't

1lb is considerably cheaper, but doesn't do half the job

it is the building code that says one must cover the foam in some manner as it is considered to be carcinogenic in a fire situation.

Insurance companies dont regulate nor refuse to insure due to foams. that's a wive s tale. Now - have it installed without a Buildign Permit and then you may be in trouble in more ways than one

feel free to ask any questions you like and I will get the truth for you

Ken

interesting Ken.....I too am a cbo for the mun of Whitestone........and I agree with Ken........ask before doing and save yourself a lot of grief..!

DJD · SCARBOROUGH, ONT

is the permit needed because the walls would be striped of drywall
- thus becomeing a reno ?

Rustynuts · MAGNETAWAN, ONT

a permit may or may not be required it depends on the municipal requirements and their policies. Insulation/vapour barrier is a required inspection. The code requires exposed foam to be covered and attached garages to be gas proofed and the door between the dwelling and the garage to be sealed and have an automatic closure. Spray foams need to be code compliant and installed by certified installers. The spray foams sold at big box stores in propane tank like containers are not code compliant as far as I am concerned. As far as covering spray foam with a vapour barrier is a hot issue biggrin and varies between jurisdictions.

not sure if this answers your question.