Firestop Site

Main Site

07840 Master Specification

Firestop Glossary

History of Firestops

Related Sections of Work!!

Bounding! Very Important

Penetration Seal Drawings

Building Joints 1

Building Joints 2

Building Joints 3

Contact

These drawings complement Section 07840 Firestopping Master Specification. Please follow the links in the boxes above or below to get from one to the next. There are 3 web pages with drawings for joints. These drawings are intended to show where firestopping is required. The areas to be firestopped are shown cross-hatched. The idea is that the specification text shall govern what materials and certification listings are to be installed - where. The drawings also complement one another as well as the accompanying text, beneath each drawing. Another significant concept embodied in this information is that the entire use of it in a project manual is intended to ensure, or at least increase the likelihood of equality in bidding.

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Main Site

Firestop Site

Code Evaluations AVAILABLE!

Glossary of Fire Protection Terms

3M Fire Barriers

Vectorising Drawings and Maps; Paper to CAD

Circuit Integrity Fireproofing

Bounding

Code Req's for Firestops

Essay on Performance Based Codes

Master Spec. Section 07840 Firestopping

Related Sections to 07840

Penetration Seal Drawings

Building Joint Drawings 1

Building Joint Drawings 2

Building Joint Drawings 3

History of Firestops in North America

Warnock Hersey Experience

Firestop Trade Jurisdiction

Achim Hering Bio

Man Made Mineral Fibres

Fire Protection Industry Links

Firestop Products and Equipment

Firestop Mortar

Firestop Silicone Foam

Intumescent Products

Endothermic Products

Insulation Products

Caulking & Paint Firestops

Firestop Pillows

Firestop Devices

Firestop Slide Show 1 of 10 Basics

Firestop Slide Show 2 of 10 Code

Firestop Slide Show 3 of 10 No Seal

Firestop Slide Show 4 of 10 Deemed-to-comply

Firestop Slide Show 5 of 10 Misinstalled

Firestop Slide Show 6 of 10 Re-entered

Firestop Slide Show 7 of 10 Faulty Spec.

Firestop Slide Show 8 of 10 Proper Firestops

Firestop Slide Show 9 of 10 Test

Firestop Slide Show 10 of 10 Smoke and Trays

Sample Firestop Listing

Kitchen Exhaust Cleaning; Boiling-Hot Pressure Washing

ULC           UL

T O S

(Theory of Survival)

DIBt

TU Braunschweig iBMB

CONTACT

07840 Drawing 1

07840 Drawing 1 - M/E Penseal through masonry or concrete fire separation

07840 Drawing 1 covers a lot of territory. Many variations of it are discussed in the Master Specification. To avoid serious problems and unwanted liability, please check comments on Sleeving and Pipe Covering under http://www.oocities.com/astximw/profistops.html. Also check comments on Related Sections of Work under http://www.oocities.com/related_sections.html.

07840 Drawing 2

07840 Drawing 2 - M/E Penseal through 1 Hour Drywall

07840 Drawing 2 also covers a lot of territory. Through-penetrations in drywall, in Canada, are susceptible to the 'I-was-there-first-Virus'. The consequences of disregarding the embarrassing Canadian history on this subject, are well documented on under http://www.oocities.com/astximw/fuspecti.html. Many variations of it are discussed in the Master Specification. To avoid serious problems and unwanted liability, please check comments on Sleeving and Pipe Covering under http://www.oocities.com/astximw/profistops.html. Also check comments on Related Sections of Work under http://www.oocities.com/related_sections.html.

07840 Drawing 3

07840 Drawing 3 - M/E Penseal in 2 Hour Drywall

07840 Drawing 3 also covers a lot of territory. Through-penetrations in drywall, in Canada, are susceptible to the 'I-was-there-first-Virus'. The consequences of disregarding the embarrassing Canadian history on this subject, are well documented on under http://www.oocities.com/astximw/fuspecti.html. Many variations of it are discussed in the Master Specification. To avoid serious problems and unwanted liability, please check comments on Sleeving and Pipe Covering under http://www.oocities.com/astximw/profistops.html. Also check comments on Related Sections of Work under http://www.oocities.com/related_sections.html.

07840 Drawing 4

07840 Drawing 4 - M/E Penseal Sizing and Tolerances

07840 Drawing 4 is intended to illustrate the guidelines that govern the forming of through penetrations such that proper sizing and costing can occur. In the case of sleeving, which is limited to fire separations made of concrete and masonry, the mechanical and electrical trades are responsible for the sizing of the openings because they apply the sleeves. In the case of drywall fire separations, the opening size is determined by the drywall contractor. All trades shall use this guideline. This permits accurate pricing as well as accountability for field variances. Also see comments on sleeving and pipe covering under these two URLs: http://www.oocities.com/astximw/profistops.html and http://www.oocities.com/astximw/related_sections.html. This does not, however, apply to timber floors. As the specification cues you, you have to find out how the openings will be made for through penetrations in timber floors. More often than not, they are simply cut by means of a chainsaw. Then, the width of the blade may very well determine your minimum sizes. Watch this! You need to see the actual certification listings that you want used on the jobsite. Many of them have surgically small openings around the penetrant. This is because a lot of firestop system designers don't make it onto construction sites and have absolutely no clue whatsoever what happens and why these things happen. Below is an example of a real timber floor through penetration. You need to pick systems whose opening configurations match what actually happens in the field, or else, dictate what will happen in the field. If you base your specification on surgical round holes for each conduit and pipe, you better make sure that the plumbers and electricians allow for this practice early on, or else you will most definitely have an argument on your hands later on.

Timber Floor Through-Penetration - cut by Chainsaw

07840 Drawing 5

07840 Drawing 5 - Fire Damper Penetrations

07840 Drawing 5 is here exclusively as a warning. This detail is a very popular spot for deficiencies. Back in the 1980's, a savvy marketer of firestop caulking in Alberta had the idea of increasing his caulking sales by indicating that because there is a mandatory gap between the fire damper and the surrounding fire separation, that this invites smoke travel and should be stopped by the application of a bead of any firestop caulking on both sides of the mandatory angle iron lip on both sides of the fire damper penetration. What we have here is a whole rat's nest of potential code infractions. The initial idea to restrict this otherwise inevitable smoke travel is actually not a bad one. Who wants to have smoke travel, that could potentially be avoided by using a few dollars' worth of firestop caulking? And, by buying into this idea, our federal government and thus scores of others have simply adopted this practice without further thought. Here is the problem: our damper assemblies must be bounded, just like the firestops. If you haven't read the bounding page yet, please do so now. Really. Our dampers were NOT tested OR listed with any caulking between the angle iron lip, the duct and the surrounding wall or floor assemblies. Dampers in North America are made of thin gauge sheet metal. If you caulk around the angle iron, you violate the listings and therefore the code, while taking on the liability for your design. What may or may not happen in case of a fire involving a caulked damper assembly, is that, unlike at the test laboratory, the heat cannot escape. This may lead to a collapse of the damper assembly. This has not been tested to the best of my knowledge. But suffice it to say, that dampers, just like fire doors, firestops, wall assemblies, etc. must be BOUNDED. Check the actual installation instructions with the damper assembly before adding or subtracting components at the specification level. Otherwise, it's YOUR liability. Other extremely popular deficiencies concern the installation configurations of fire dampers. Typically, dampers pass singly through a fire separation. But more often than not, multiple dampers can be found in through penetrations. It is also quite popular to pass other penetrants through damper openings, such as wiring and other piping. The reason for this is typically that no one pays any attention to BOUNDING. While it is known that perhaps owners don't pay enough for the design team to police such items, weasel clauses may be inadequate protection for failure to check on such blatant bounding issues. As a rule of thumb, the damper perimeter gap is supposed to be 1/8" for every foot of damper width. So how does one accomplish this? Co-ordination of trades prior to installation. Un-bounded damper penetrations de-rate the fire-resistance duration of the surrounding fire separation to ZERO. As far as a real solution both to bounding AND to the smoke travel? There isn't one in North America. There are smoke dampers, but that only refers to smoke migration through the damper, on the inside of the ductwork. The real solution would be if someone bothered to test European models, which don't utilise flimsy sheet metal accordion shutters (like the cheaper North American models do), but instead use heavy duty calcium silicate or vermiculite boards, which pivot inside the damper. These assemblies restrict airflow more, during ordinary operation, because of the thickness of the central board. But the advantage is that bounded dampers, particularly in Benelux and Germany actually work, stopping both fire and smoke. Filling high density firestop mortars around the outside of such damper assemblies, as well as fire doors, is a regular part of the firestop trade there. But this is not available over here, or covered by testing or certification that would meet code in North America. Apart from that, it's more expensive to do it properly, as is the practice in Germany and Benelux. Thus, unless someone gets these European systems classified in North America, the best we can do is use our flimsy North American dampers and make sure no one caulks around them. This way, we will meet code, invite smoke travel but at the very least keep our dampers from collapsing.

Firestop Site

Main Site

07840 Master Specification

Firestop Glossary

History of Firestops

Related Sections of Work!!

Bounding! Very Important

Penetration Seal Drawings

Building Joints 1

Building Joints 2

Building Joints 3

Contact

Main Site

Firestop Site

Code Evaluations AVAILABLE!

Glossary of Fire Protection Terms

3M Fire Barriers

Vectorising Drawings and Maps; Paper to CAD

Circuit Integrity Fireproofing

Bounding

Code Req's for Firestops

Essay on Performance Based Codes

Master Spec. Section 07840 Firestopping

Related Sections to 07840

Penetration Seal Drawings

Building Joint Drawings 1

Building Joint Drawings 2

Building Joint Drawings 3

History of Firestops in North America

Warnock Hersey Experience

Firestop Trade Jurisdiction

Achim Hering Bio

Man Made Mineral Fibres

Fire Protection Industry Links

Firestop Products and Equipment

Firestop Mortar

Firestop Silicone Foam

Intumescent Products

Endothermic Products

Insulation Products

Caulking & Paint Firestops

Firestop Pillows

Firestop Devices

Firestop Slide Show 1 of 10 Basics

Firestop Slide Show 2 of 10 Code

Firestop Slide Show 3 of 10 No Seal

Firestop Slide Show 4 of 10 Deemed-to-comply

Firestop Slide Show 5 of 10 Misinstalled

Firestop Slide Show 6 of 10 Re-entered

Firestop Slide Show 7 of 10 Faulty Spec.

Firestop Slide Show 8 of 10 Proper Firestops

Firestop Slide Show 9 of 10 Test

Firestop Slide Show 10 of 10 Smoke and Trays

Sample Firestop Listing

Kitchen Exhaust Cleaning; Boiling-Hot Pressure Washing

ULC           UL

T O S

(Theory of Survival)

DIBt

TU Braunschweig iBMB

CONTACT

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