A little on the Commercial side of things.

[Marcel R. Cyr]

Quick visit today at the Gym floor installation.
The floor is all installed and the first coat of sealer had been installed yesterday, and today they were screening the whole floor with 100 grit screen buffers and vacumming the dust.

The second coat of sealer will go down today.

Two coats of finish will be installed on top of that. Before that, the lineing will be done like the end of the week.

Attachment 16204 Attachment 16205 Attachment 16206 Attachment 16207

The product being used is in the last photo.
Manufactured by Poloplaz and used in gyms all over the US.

Hope you enjoy.

Marcel

[Marcel R. Cyr]

Today, we start insulating the exterior walls of the Building.

The way this building was designed, had steelstuds from basement and continuous to the roof. All the studs were attatched to the second floor steel and roof steel with steel clips.
This would have interupted the vapor barrier on the inside and made it virtually impossible to get a 100% seal behind all those beams and became an installation concern.
The Architect had this exterior envelope with r-19 insulation and vapor barrier only.

I fought for a while with the Architect or argued for awhile that the vapor barrier would be breached in so many place due to the design, that it might as well be thrown out the window.
I convince the client to pay extra and have the whole envelope sprayed with Corbond polyisynerate spray at a cost of $16,000-$20,000 and they bought it.
http://www.corbond.com/corbondproduct.htm

Here are a few pictures of exterior wall studs being sprayed and the machine that does it along with the prodoct.

I will show you in the next frame all the clips that would interupt the vapor barrier inside that convinced them to go along with this change.

Attachment 16289 Attachment 16291 Attachment 16292

Attachment 16290 Attachment 16293

The link above will give you some information on this Product.

Marcel

[Marcel R. Cyr]

Here you see all the areas that had to have a continuous vapor barrier. Yeah right.

Attachment 16294

Attachment 16295

Attachment 16296

As you can see in just these three areas maintaining a tight evelope was not going to happen with a conventional wall assembly.

Sometimes one has to take control. ha. ha.

Marcel

[Peter C. Russell]

Marcel,
Is that a closed or open cell foam, and could you tell us why the decision was made as to which type.

Thanks for the pic's

[Marcel R. Cyr]

Originally Posted by prussell

Marcel,
Is that a closed or open cell foam, and could you tell us why the decision was made as to which type.

Thanks for the pic's

Hi. Peter and hope you are fairing well.

This is a closed cell insulation product, used it last year to do screwed up designs where insulating the conventional way is just impossible.

This Corbond Product carries a whopping 6.8 r-factor un-aged and cost roughly $1.00 per board/foot.
$3.00 a board foot for what I am doing.

Iceynene carries a much lower R-factor, I believe somewhere around 4.8 or 5.2 and is open cell.

There have been cases here in this area where the Iceynene was used in crawl spaces and absorbed all the moisture and rotting the whole floor assembly with mold and the works.

Makes one think after seeing that. It is a lot cheaper product.

Marcel

[Peter C. Russell]

That's good to know, if I run into foam insulation in crawl spaces I will use my probe to look for rot.

I love this MB, learn something new every time I'm on it.

[Marcel R. Cyr]

Peter, the icynene product is only 3.6 r-factor. I was giving it a lot more than it deserves. ha. ha.

You can read on it here.
http://www.icynene.com/InsulationSystem.aspx

Marcel

[Peter C. Russell]

Originally Posted by mcyr

Peter, the icynene product is only 3.6 r-factor. I was giving it a lot more than it deserves. ha. ha.

You can read on it here.
http://www.icynene.com/InsulationSystem.aspx

Marcel

Marcel, is that 3.6 r factor per inch? Also I have a insulation company that is interested in using me for before and after thermal imaging for their restoration jobs, is there any particular area's that I should concentrate on, IE, voids in the building envelope?

[Marcel R. Cyr]

The R-factor for this product is per inch.
Here is the Tech sheet on it.
http://www.icynene.com/assets/docume...%20Formula.pdf


Corbond;

http://www.corbond.com/works.htm

http://www.corbond.com/pdf/1-6_Fact_Sheet_ODP.pdf

Interesting when one starts to read about a product and using it in the field.
Only then can apples be compared to apples. ha. ha.

Marcel

[Marcel R. Cyr]

Roof shingles underway.
IKO Aristocrat 25 being used to match existing roof that was re-done about 12 years ago.
The College prefered to match rather than upgrade.

This Commercial Roofing Contractor has for years hand nailed all their roof shingles and will not allow air nailers.

It might cost a little more, but the quality of installation remains.

Attachment 16326 Attachment 16327 Attachment 16328

Marcel

[Marcel R. Cyr]

Here is another interesting topic for the Book store project.

Below are pictures of an exterior overhang created by design where the new joins up to the existing building.

The overhang is slated to have a flat horizontal soffit with square edge ship lap cedar boards to match a few overhangs on the existing building.

In my review of the drawing, I noticed that no sprinkler heads had been designated for the exterior overhang in the design.
Typically, any overhang 4 feet or more needs to be protected if it is of a combustible material.
This usually applies only to Commercial fully sprinklered buildings.

I called the Sprinkler Contractor and asked him why his shop drawings did not how any heads to protect the exterior soffit.

Did not show on the engineered drawings he said and did not know that it was combustible material.

I said OK, then call the Fire Marshal and ask what his interpretation is for the State of Maine.

The answer from the Fire Marshal=

Any combustible overhang 4' or greater shall be protected either by sprinkler heads or No-Burn.

Attachment 16391

Attachment 16392
I said to myself, what the hell is No-Burn, well a little research showed it to be a chemical that fire proofs wood so it does not burn.
As of tonight I just got notified by AEC Dailey that they are offering this free course right now.

http://www.aecdaily.com/en/1600692


Attachment 16393

[ATTACH]16394[/ATTACH) We will be using this product and buying the wood from Massachusetts so the wood can be chemically applied there to save freight charges.

To have sprinklered this area would have necessitated using sidewall heads and not all locations was accessible to do so.
The other alternative would have been to use a non-combustible material, such as drywall exterior sheathing, but the College wanted to have the painted cedar.

This product goes on as a primer and two coats of regular paint can be applied on top of it and is now fireproofed.

Total cost of treatment = $800 since they want business in Maine for this product. Otherwise would have been $1800 for 500 s.f. .

This 1 hour course is well worth taking.

Marcel








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[Marcel R. Cyr]

Winter wonderland has finally arrived and puts a damper on things. Attachment 16462
The forecast is saying snow till' tomorow night and 12-18 inches of snow. That is a bummer on a construction site.

Attachment 16463
Working to finish the brick in a shelter is not fun.


Attachment 16464
Wrapping up the Corbond closed cell spray foam today. 21,000 bd. ft at a $1.00 a bd. ft., but the building is tight as a nut shell.

Attachment 16465
Brick Masons working under shelter. Should be done in a couple of days.
It will be nice to get rid of this phase and tear that shelter down. It is consumming a lot of temporary heat.

Attachment 16466

Marcel

[Peter C. Russell]

Marcel, I know what you mean about the weather.

I'm going out to the camp job tomorrow to install stairs and basically dig out.

Will be starting Alan's job on Wednesday, at least that job is in Mass. ad they didn't get too much.

[Marcel R. Cyr]

Hi. Peter;

We are at about 8-10" of snow here right now 7:25 pm and still coming down.

It really is depressing this time of the year to go to work outside and do our thing when cold and snow just slows everything down and production sucks.

Oh well, it comes every year, but it seems like it gets harder every year, I wonder why. ha. ha.

Good luck on digging out.
How much snow did Allan get down his way.?

Marcel

[Peter C. Russell]

I think they only got an inch or two, I hope that's all, the first building we have to side has about 60 square of siding and 1200 feet of fascia and soffit.

I'll start posting pictures on his thread when we get going.

We got about 10 inches here and it's still coming down, Oh well, I know what you mean about it getting harder every year, hows that saying go.......

" Sucks getting old!!!!!"