Intumescent Seals for Fire Doors & Compartments protection/fire protection... · 2015-04-16 · Intumescent seals are a practical, well-established method of achieving Fire Resistance

Intumescent Seals for Fire Doors & Compartmentst he l ead ing edge o f i n tumescen t t echno logy

CI/SfB(31•59) (K2)

Owner

WIS TEXT 2

Intumescent seals are a practical,

well-established method of achieving

Fire Resistance in designated Fire

Doors. Heat from a fire causes the

intumescent material to foam and

swell, thus filling the gap between the

door and frame and preventing the

flow of hot gases and smoke.

However, not all such seals

are equal, and as

concern over

litigation grows, the

thoughtful specifier must

examine all the options to ensure

that the seal chosen for each project

really is the most appropriate. As the

recognised leader in intumescent

seal technology, Sealmaster offers

products of proven performance

and demonstrable cost-effectiveness,

which can be specified with absolute

confidence.

FIRE PERFORMANCE

Sealmaster manufactures intumescent

fire and smoke seals which are

compatible with all types of

fire-resisting door assemblies.

Although the principal seals are

intended for 30 or 60 minute rated

doors, their design and performance

characteristics indicate far longer

endurance potential.

AUTHORITY

Sealmaster intumescent fire and

smoke seals comply with all relevant

British Standards, and conform to the

requirements of the Building

Regulations.

ALUMINIUM HOLDER

The heat-treated aluminium holder

is attractive in appearance, easy to

install, and retains the intumescent

material securely and correctly

positioned in the rebate but without

weakening either the frame or

door. Robust and durable in use,

it offers excellent vandal and

damage-resistance, plus good heat

conductivity to assist early

intumescence.

THE INTUMESCENT COMPOUND

Sealmaster’s specially-formulated

intumescent material is based on

mono-ammonium phosphate, and

is compounded to resist degrada-

tion by moisture or carbon dioxide.

When triggered by heat it produces

a low-pressure, high volume foam.

A high-pressure exfoliated graphite

foam is combined with Sealmaster’s

traditional material to produce the

unique Sealmaster Ultima seal, giving

the benefits of high expansion with

high pressure to restrict leaf

movement in a fire.

ELASTOMERIC BLADE SEAL

The flexible and easy-to-replace

flame-retarding elastomeric blade

seal, acts as a draught seal in normal

SEALMASTERTHE FIRST NAME IN INTUMESCENT SEALS

1

2

5

4

5

4

3

2

3

Index Page

3

use and prevents the passage of hot

or cold smoke, noxious gases and

flames during fire, thereby keeping

escape routes open.

THE INTUMESCENT EFFECT

Although the intumescent

material remains hard under normal

conditions, it intumesces rapidly at

approximately 140˚C, and achieves

a 40-fold volume expansion ratio. All

seals contain sufficient intumescent

material to ensure that the designed

integrity ratings of both 30 and 60

minutes are achieved with

comfortable margins.

HOW SEALMASTER FIRE AND

SMOKE SEALS WORK

The elastomeric blade forms an efficient draught seal without affecting the normal door operation.

In the early stages, before heat can activate the intumescent, the elastomeric blade acts as a barrier to smoke penetration.

Heat from the fire activates the intumescent which swells to close the gaps, resisting flame penetration*.

6

AS A DRAUGHT SEAL

AS A SMOKE SEAL

AS A FIRE SEAL

* Sealmaster Intumescent Plaster between the door jamb and the wall is also activated and swells to prevent fire penetration at this point.

INDEX

GENERAL INTRODUCTION

How Sealmaster Intumescent Fire and Smoke Seals Work 3

The Benefits ofSealmaster Systems 4/5

Specification Guide 6

Specification Notes 7

PRODUCT INFORMATION

IF30 8

IF60 9

N30 10

IMN/IMP 12

N60S/IMP 13

Ultima 14/15

A Complete Rangeof Fire Protection Products 16/17

Fireglaze 18

G30/GB15 19

Fireface 20

Ventilators 21

Intumescent Plugs 21

Gap Sealing Intumescent Products 22

Firefoam 23

Intumescent Plaster 23

Service and TechnicalSupport 24

Ageing Performance 25

Authority and Legislation 26

Ordering Detail 27

Index Page

Owner

Text Box

54

SEALMASTER SYSTEMSHAVE NO EQUAL

EASY TO INSTALL

The aluminium holder is easily fitted

into rebates, and, unlike some glued

or friction-held plastic holders, is

firmly pinned in place to resist

accidental or intentional pull-out.

ATTRACTIVE APPEARANCE

The holders can be anodised or

powder-coated in a range of colours

to match or complement fittings,

furniture or other materials in both

new-build and refurbishment

projects. Unlike some cheaper plastic

sections, they do not suffer from

craking or bending which can result

in poor appearance and

inferior performance.

VANDAL & DAMAGE RESISTANCE

The holders are designed to with-

stand considerable rough treatment,

yet remain in good condition. Special

features help protect the intumescent

material from damage by vandals.

MAINTENANCE-FREE

To retain their performance, many

other seals are coated with epoxy

resin which must be repaired if dam-

aged - such repairs are rarely carried

out in practice - posing a threat to

fire-performance. Sealmaster seals

need no such coating, and on-site

treatment is therefore avoided.

EXCELLENT HEAT CONDUCTIVITY

ASSISTS EARLY INTUMESCENCE

The excellent heat conductivity of the

aluminium holder assists in the early

activation of the intumescent foam at

temperatures as low as 140°C.

DOORS CAN BE EASILY UPGRADED

Existing doors can often be upgrad-

ed, in consultation with the local Fire

Prevention Officer, simply by fitting

Sealmaster intumescent fire and

smoke seals into grooves cut into the

sides and head of the door.

N.B. Sealmaster intumescent fire and smoke seals are designed to cope with future legislation for hot smoke control, an important factor when dealing with the future upgrading of existing doorsets.

LOW-PRESSURE FOAM WON’T

WARP OR PUSH OPEN DOORS

Unlike many other seals, the intu-

mescent material in Sealmaster seals

does not expand forcefully

enough to open doors, Furthermore,

if doors begin to warp, the foam

reservoir is more than adequate to

re-seal the joint. Alternatively, Seal-

master Ultima high-pressure graphite

seals can restrict movement of a

door leaf where desirable.

Index Page

54

DOOR STILL FUNCTIONS

The soft foam of a Sealmaster seal

allows doors to be opened and

does not inhibit attempts to clear an

escape route or tackle a blaze. Yet

the ample reserves of intumescent

material will effectively re-seal the

joint if the door is closed again - an

extra safety measure not provided

by some other seals.

CLOSES EVEN BIG GAPS

Doors are not always installed by

craftsmen joiners, and

clearances may vary

considerably from the

stipulated 3mm + 1mm. With suf-

ficient intumescent to close gaps of

up to 6mm, Sealmaster seals main-

tain integrity without compromising

Building Regulations.

RESISTS BOTH HOT AND

COLD SMOKE

Sealmaster smoke seals are made

from vulcanised rubber so they can

withstand hot, as well as cold smoke

- something thermoplastic blades or

pile cannot claim. Likewise, they do

not suffer from the premature heat

degradation and breakdown which

can lead to smoke passing the seal

before the intumescent is activated.

N.B. The advantages of intumescent seals have been recognised in Buildings Regulations approved document B: Fire Spread. This document identifies Smoke Control Doors with the suffix ‘S’ and requires them to be fitted with a flexible seal. Firedoors without cold smoke control are identified by the prefix ‘FD’.

DURABLE SMOKE SEALS ARE

EASY TO REPLACE

Sealmaster smoke seals can easily be

replaced if the frame gap expands

or contracts due to atmospheric

effects on the timber. Other seals

cannot always be replaced, neces-

sitating an expensive and disruptive

door upgrade to restore integrity.

Sealmaster seals are very resistant to

mechanical wear and degradation, so

when properly fitted a life in excess

of 20 years can be expected.

PROVEN LONGEVITY IN USE

Sealmaster seals have been removed

periodically from Wembley

Conference Centre and fire tested

by TRADA and have always achieved

a fire-resistance rating well in excess

of the required sixty minutes.

In the most recent test, Sealmaster

intumescent seals taken out of

service after 22 years achieved over

70 minutes fire resistance in an

FD60S fire door.

RESISTS ENVIRONMENTAL ATTACK

Sealmaster seals have demonstrated

proved resistance to CO2 and moisture,

both in independently run long-term

exposure test programmes and in

actual installations dating as far back

as 1977.

Index Page

76

SPECIFICATION GUIDEAlways refer to this specification guide to identify the correct seal or seal combination to use.

FIRE ONLY FIRE AND SMOKE

FD30S FD30SFD30 FD60

NOTES

On untested doorsets or those of unknown behaviour Sealmaster Ultima seals may be able to offer protection above and beyond that available from a single type of intumescent strip. Please contact Sealmaster technical services for advice where there are any doubts about suitability (see page 2). On all 60 minute doors additional protection is required at all ironmongery

positions. Sealmaster recommend the use of their intumescent plugs to fulfil this role (see page 21). Seals can be fitted into either door or frame. Sealmaster recommend that, wherever possible, they should be fitted into the frame to enable doors to be hung with an accurate and constant gap between the door and the frame.

FITTING SEALMASTER INTUMESCENT SEALS INTO GROOVESIt is most important that the correct size of groove is cut, as remedial work can be costly in time and money. The seal should be a light press fit in the timber, finish-

ing flush with the surface before being finally secured with pins (supplied) at 200mm centres.

SEAL EXTRUSION WIDTH EXTRUSION DEPTH

IF30IF60N30N60IMNIMPN60S

9mm21mm9.5mm21mm20.5mm20.5mm21mm

6mm7.5mm7.5mm7.5mm6mm6mm7.5mm

The recommended door-to-door and door-to-frame gap is 3mm.

MINUTEPROTECTION30 MINUTE

PROTECTION60 MINUTEPROTECTION30 MINUTE

PROTECTION60

IF30SEE PAGE 8

SEAL TYPE: TO JAMBS AND HEAD

IF60SEE PAGE 9

IF30SEE PAGE 8


IF60SEE PAGE 9

IMPSEE PAGE 12

SEAL TYPE: TO STRIKING EDGE OF FRAME

IMPSEE PAGE 13

IF30SEE PAGE 8


IF60SEE PAGE 9

IF30SEE PAGE 8

SEAL TYPE: FLUSH MEETING STILES IF ONE DOOR BOLTEDTO ONE LEAF ONLY

IF60SEE PAGE 9

IF30/IMPSEE PAGE 8 / 13

SEAL TYPE: FLUSH MEETING STILES IF BOTH DOORS OPERATIONAL


IF30SEE PAGE 8

SEAL TYPE: IF REBATED MEETING STILESTO EACH LEAF

IF30SEE PAGE 8

IF30SEE PAGE 8


IF60SEE PAGE 9


SEAL TYPE: MEETING STILES


N30SEE PAGE 10


N60SEE PAGE 11

IMNSEE PAGE 12


N60SSEE PAGE 13

IMPSEE PAGE 12

SEAL TYPE: TO STRIKING EDGE OF FRAME

IMPSEE PAGE 13

N30SEE PAGE 10


N60SEE PAGE 11

N30SEE PAGE 10

SEAL TYPE: FLUSH MEETING STILES IF ONE DOOR BOLTEDTO ONE LEAF ONLY

N60SEE PAGE 11

IMN/IMPSEE PAGE 12

SEAL TYPE: FLUSH MEETING STILES IF BOTH DOORS OPERATIONAL

N60S/IMPSEE PAGE 13

N30SEE PAGE 10

SEAL TYPE: IF REBATED MEETING STILESTO EACH LEAF

IF30SEE PAGE 10

IMNSEE PAGE 12


N60SSEE PAGE 13

IMN/IMPSEE PAGE 12

SEAL TYPE: MEETING STILES

N60S/IMPSEE PAGE 13

SINGLE ACTING SINGLE DOOR

DOUBLE ACTING SINGLE DOOR

SINGLE ACTING DOUBLE DOOR

DOUBLE ACTING DOUBLE DOOR

Index Page

76

Intumescent fire seals from different manufacturers vary significantly in their performance, qualityof manufacture and component materials. Use the checklist below to confirm that an intumescent

seal meets with your specific requirements, or conforms to the quality of specification andperformance that you have intended to achieve.

SPECIFICATION NOTESThe Specification Guide opposite

may be used to specify intumescent

seal requirements on single and

double STANDARD doors of 30

minute rating, in accordance with

BS476: Part 22. For non-standard

doors and/or doors of unknown

performance use Ultima fire seals.

DEFINITIONS:

STANDARD DOOR OF KNOWN

PERFORMANCE

A door conforming to the testing

standard of BS476: part 22, of known

and certified fire rating:

NON-STANDARD DOOR OR DOOR OF

UNKNOWN PERFORMANCE:

Such doors are most likely to be

encountered when refurbishing or

upgrading existing buildings.

They might include the following:

If any of the above criteria apply

please refer to our technical advisory

service for advice on the most

appropriate product.

MEETING STILES AND RAILS

The type and configuration of the

meeting stile, on both single and

double acting doors, can affect the

correct choice of intumescent seal in

order to meet the appropriate fire

resistance.

Ensure that the configuration of each

door is known and specified before

selecting the appropriate

combination of Sealmaster seals from

the Product Selector overleaf.

The following options are referred to

in this brochure:

Fire resistance rating toBS 476: Part 22

Intumescent necessaryin door or frame

(Red Core)

Intumescent not necessary in door or frame

(Green Core)

FD 20(white background)

FD 30(yellow background)

FD 60(blue background)

FD 30 with specifiedintumescent in door orframe and otherwise

FD20

* NB: Only half hour door constructionsthat satisfy both FD 20 without intumescent and FD 30 with

intumescent performance criteria aremarked with this plug.

Blue Core White Background

Old doors, not containing a colour-coded plug (BS476: part 22).

Doors of unknown materialor properties.

Oversized doors.

Distorted doors.

Double doors with unequal rebatesin the meeting stiles.

Doors with distorted or oversizedgaps (>6mm) between stilesand/or frame.

Plain meeting stiles.

Rebated meeting stiles(unequal rebate).

Rebated meeting stiles(equal rebate).

SPECIFIER CHECKLIST

REQUIREMENT

Certification:

IntumescingCapacity

Type of Carrier

High or lowpressure seals

Hot or cold smoke

Replaceablesmoke blades

ACTION

Obtain manufacturerverification that the seal is independently tested to BS476: Part 22.

Check the intumescingcapability of the intumescentused, and obtain writtenmanufacturer verification.

Verify and compare the carrier material and affixing method.

If not otherwise stated, requestmanufacturer confirmation that the seal uses a low pressure intumescent.

Ascertain whether smoke seals are tested in hot smoke and ensure writ-ten manufacturer verification.

Obtain confirmation that the blade component in the fire & smoke seal can be replaced.

RELEVANCE

BS476: Part 23 is a supplementary test to Part 22, and is far less comprehensive - specifically excluding many common door constructions. However, some seals in the UK are supplied as ‘tested to BS476: Part 23’ without having being tested to Part 22. This is a contravention. Certification to BS476: Part 23 is not adequate in a very wide range of applications and should be considered with extreme caution.

When tested to BS476: Part 22, the door is fitted with a 3mm gap between door and frame. In practice, it is sensible to assume that even using the most skilled joiner, this gap is likely to show some variation. Sealmaster intumescents expand 40-fold, maintaining the fire integrity of gaps up to 6mm - greater than any other intumescent seals available - so maintaining the integrity where doors have ‘dropped’ or been poorly fitted leaving gaps up to 6mm.

Is the carrier aluminium or plastic - and is it pinned into place or just glued/friction fitted? Sealmaster seals are housed in a durable, vandal-resistant aluminium section and are pinned into position. The metal carrier also encourages early uniform intumescence (180˚C).

Some seals generate pressure as the intumescent material expands. In some cases this may force ‘warping’ of the door, compromising the integrity. High pressure seals will also ‘jam’ the door against intentional entry (Fire Services). Most Sealmaster seals are made from totally inert, low pressure material.

The British Standard test for smoke seals uses cold smoke. It is often the case, in real fires, that the smoke temperature is intense prior to the actual outbreak of flames (so activating the intumescent). Many approved smoke seals would melt or otherwise fail in a hot smoke situation, allowing the passage of smoke/noxious gases. All Sealmaster smoke seals are designed to withstand hot smoke upto 250˚C.

Smoke seals in daily use act as draught seals, and are subject to considerable wear and tear and, in addition, door tmbers may naturally expand/contract, affecting the normal 3mm gap allowed between frame and door. The blades in many smoke seals are not replaceable, meaning removal of the door and replacement of the entire seal - a disruptive and expensive operation. The elastomeric blades in all Sealmaster seals may be easily and inexpensively replaced if necessary.

Index Page

98

SEAL TYPE

IF30

INTRODUCTION

IF30 is the basic intumescent fire seal

in the Sealmaster range. It is used

where primary protection is needed,

to single and double leaves and single

and double acting doorsets, and is

specified for use on FD30 fire doors.

DESCRIPTION

The seal consists of an extruded

aluminium alloy profile with a single

reservoir of Sealmaster Intumescent

material.

APPLICATION

In new doorsets, the seal is rebated

into the head and jambs of the door

frame, and is aligned with the centre

of the door edge.

Where IF30 is fitted to an existing

door assembly, the top rail and stiles

of the door are easily rebated. The

seal is interrupted at the hinges

and lock/latch plate positions, and

protection at these points is normally

not essential for FD30 doors,

see BS 8214.

FIRE PERFORMANCE

As the fire develops and reaches the

IF30 seal, the intumescent material

foams, swells and fills the gaps be-

tween the door and the frame. Since

the foam remains soft during the

period of intumescent action, it does

not prevent the door from being

opened by firefighters and the copi-

ous reserves ensure that the gap will

be re-sealed should the door distort

for any reason.

AUTHORITY

IF30 Intumescent Fire Seal has been

tested by TRADA. A 30 minute fire-

resistance rating was achieved, when

used in conjunction with a 30 minute

fire door. Copies of test reports are

available on request.

IF30 fire seals have been

tested and approved by

Certifire to conform to

BS476 part 22. This is the

most demanding 3rd party

certification scheme in the industry.

CERTIFIREAPPROVEDPRODUCTNo. CF142

9mm

6mm

ALWAYS REFER TOTHE PRODUCT SELECTOR

MATRIX ON PAGE 6 BEFORE SPECIFYING THIS PRODUCT

FIRE SEAL

30 MINUTES

Index Page

98

INTRODUCTION

IF60 is a 60 minute fire seal, which

provides primary protection for

single and double leaf, single and

double acting fire doors. It is also

used in conjunction with IMP seals at

the meeting stiles on double doors

(see page 12).

DESCRIPTION

The seal is extruded from aluminium

alloy and contains two reservoirs,

each having substantial reserves of

Sealmaster intumescent material.

APPLICATION




of the door edge. The seal is

interrupted at the hinges and lock/

latch plate positions, and

protection at these points is provided

by Sealmaster intumescent plugs.

(see page 21).

FIRE PERFORMANCE

When heat from the fire reaches the

IF60 seal, the intumescent material

foams, swells and fills the gaps around

the door and door frame. As the

foam remains soft during the period

of intumescent action, it has the

ability to re-seal the gap, should the

door warp or be moved for any

reason.

AUTHORITY

IF60 was tested by TRADA. It was

fitted to a 60 minute door assembly

and acheived an integrity rating of 71

minutes.

IF30 fire seals have been

tested and approved by

Certifire to conform to

BS476 part 22. This is the

most demanding 3rd party


SEAL TYPE

IF60

21mm

7.5mm




FIRE SEAL

60 MINUTES

Index Page

1110

INTRODUCTION

N30 is a combined fire and smoke

seal. It is recommended for single

action FD30S fire and smoke-

resistant doorsets.

DESCRIPTION

The extruded aluminium alloy profile

contains substantial reserves of

Sealmaster intumescent material in a

single reservoir. An angled,

self-extinguishing elastomeric blade

gives maximum efficiency with

minimum drag.

APPLICATION




of the door edge. Where N30 has

to be fitted to an existing door

assembly, the top rail and stiles of the

door are easily rebated.

NORMAL USE

In normal use, the elastomeric blade

seals the gaps between the door and

the frame, and acts as an efficient

draught seal. The seal is broken at

the hinges and lock/latch striker plate,

and protection at these points is not

essential for FD30S doors,

see BS 8214.

FIRE PERFORMANCE


N30 seal, the intumescent material

foams, swells and fills the gap

between the door and the frame.

Since the foam remains soft during

the period of intumescent action,

it has the ability to re-seal the gap,

should the door warp or be moved

for any reason.

AUTHORITY

N30, fitted to a 30 minute fire door,

was tested by TRADA. It retained

stability, integrity and insulation well

in excess of the 30 minute rating.

Copies of test reports are available

on request.

N30 fire and smoke seals

have been tested and

approved by Certifire to

conform to BS476 part 22.

This is the most demanding 3rd

party certification scheme in the

industry.

SEAL TYPE

N30

9.5mm

7.5mm




FIRE & SMOKE SEAL

30 MINUTES

Index Page

1110

INTRODUCTION

N60 is a combined fire and smoke

seal for 60 minute, single-action,

fire-resisting doorsets.

DESCRIPTION

The seal consists of an aluminium

alloy extruded profile, having two

reservoirs of Sealmaster intumescent

material, and a self-extinguishing,

flame-retardant, elastomeric blade.

APPLICATION




of the door edge. Where N60 has

to be fitted to an existing door as-

sembly, the top rail and stiles of the

door are easily rebated.

NORMAL USE


seals the gaps between the door

and frame, and acts as an efficient

draught seal. The seal is interrupted

at the hinges and lock/latch striker

plate, and protection at these points

is obtained with Sealmaster

intumescent plugs. (see page 21).

FIRE PERFORMANCE

In the early stages of a fire, when

smoke is prevalent, the elastomeric

blade provides a barrier to the

passage of smoke and hot gases.


N60 seal, the intumescent material

foams, swells and fills the gaps

between the door and frame.

Since the foam remains soft during

the period of intumescent action,

it has the ability to re-seal the gap,

should the door warp or be moved.

AUTHORITY

N60, with flame-retardant elasto-

meric draught/smoke blade insert,

was tested by TRADA, in conjunction

with 60 minute assembly. Stability

and integrity were retained for 71

minutes. Copies of test reports are


N60 Fire and smoke seals

have been tested and ap

proved by Certifire to


This is the most demanding 3rd party


SEAL TYPE

N60

21mm

7.5mm




FIRE & SMOKE SEAL

60 MINUTES

Index Page

1312

INTRODUCTION

IMN/IMP is a two-part combined

intumescent fire and smoke seal,

specifically designed for the meeting

stiles of FD30S fire-resisting, double

door assemblies.

DESCRIPTION

At the meeting stiles the seal consists

of two opposing extruded aluminium

alloy profiles - IMN and IMP - each

with twin reservoirs which contain

intumescent material. IMN also holds

a self-extinguishing elastomeric blade,

which rests against IMP when the

doors are closed. At the head and

hanging stiles IMN is used on its own

with the smoke seal making contact

with the door or frame.

APPLICATION

In new doorsets, both profiles are

rebated into the centre of opposing

door edges at meeting stiles. door

edges at meeting stiles. Where

IMN/IMP seal is required in existing

doorsets, the stiles of the doors are

easily rebated. The seal is broken at

the lock/latch striker plate and pivot

positions, and protection at these

points is normally not essential for

FD30S doors, see BS 8214.

NORMAL USE


seals the gap between the doors, and

acts as an efficient draught seal.

FIRE PERFORMANCE

As the fire develops, the elastomeric

blade provides a barrier to the

passage of cold smoke and hot gases.

Once the fire reaches the IMN/IMP

seal, the intumescent material foams,

swells and fills the gap between the

doors. As this foam remains soft

during the period of intumescence,

it exerts minimal pressure, allowing

the doors to remain in their original

positions.

AUTHORITY

An IMN/IMP combination seal with

elastomeric blade insert, has been

tested on a double leaf, timber door

assembly, by TRADA. A fire resis-

tance in excess of 60 minutes was

acheived. Copies of test reports are


IMN/IMP fire and smoke

seals have been tested and



This is the most demanding

3rd party certification scheme in the

industry.

SEAL TYPE

IMN/IMP

20.5mm

21mm

7mm

6mm

IMN

IMP

6mm




FIRE & SMOKE SEALS

30 MINUTES

Index Page

1312

INTRODUCTION

N60S/IMP is a two part combined

fire and smoke seal, which is

specifically designed for FD60S

fire-resisting double doors.

DESCRIPTION

The seal comprises two opposing

aluminium alloy profiles - N60S and

IMP - each having twin reservoirs

which contain Sealmaster

intumescent material. At the head

and hanging stiles N60S is used on its

own. The flame-retardant

elastomeric blade in N60S provides

the smoke-control function required

of all doors designated by the suffix

‘S’ in Building Regulations Approved

Document B.

APPLICATION

In new doorsets, both profiles are

rebated into the centre of opposing

door edges at meeting stiles. Where

N60S/IMP seal is required in existing

doorsets, the stiles of the doors are

easily rebated. The seal is broken at

the lock/latch striker plate and pivot

positions, and protection at these

points is provideds by Sealmaster In-

tumescent Plugs for 60 minute doors

(see page 21).

NORMAL USE


seals the gap between the doors, and

acts as an effective draught seal.

FIRE PERFORMANCE

As the fire develops, the elastomeric

blade acts as a barrier to the passage

of cold smoke and hot gases. Once

the fire reaches the N60S/IMP seal,

the intumescent material foams,

swells and fills the gap between the

doors. As this foam remains soft

during the period of intumescence,

it exerts minimal pressure, allowing

the doors to remain in their original

positions.

AUTHORITY

The N60S seal, has been assessed by

TRADA, as being capable of

providing 60 minutes integrity when

used in conjunction with the IMP seal.

N60/IMP fire and smoke

seals have been tested and



This is the most demanding 3rd party


SEAL TYPE

N60S/IMP

21mm

20.5mm

N60S

IMP

6mm7mm

7.5mm




FIRE & SMOKE SEALS

60 MINUTES

Index Page

1514

INTRODUCTION

ULTIMA is a seal which combines

gap-filling properties with a high ex-

pansion pressure seal, to improve the

stability of a door assembly during

a fire. Using two distinctly different

types of intumescent material and

an elastomeric smoke blade, Ultima’s

triple action provides fire and smoke

protection for 30 and 60 minute

door assemblies.

DESCRIPTION

The seal consists of an easily-fitted

aluminium holder, with two

reservoirs and a self-extinguishing,

elastomeric smoke blade.

The first reservoir contains an

expandable graphite compound,

which combines high pressure with

a multi-directional foam, designed to

restrict door movement.

The second reservoir contains a

mono-ammonium phosphate-based

formula, which produces continual

Those straight blade inserts, for pairs

of doors and double action doors,

are designated as Ultima 30(S) and

Ultima 60(S).

INSTALLATION

Ultima fire and smoke seals are

normally rebated into the head and

jambs of the door frame, and are

aligned with the centre of the door

edge. For existing doorsets, grooves

are required in the edge of the door

or frame as follows:

The aluminium seaction is positioned

within a groove in the door or

frame. After the elastomeric blade

is inserted, the door is opened and

closed to check the ease of action,

and the profile position adjusted

SEAL TYPE

ULTIMA 30(S)ULTIMA 60(S)



foaming, up to 40 times its original

volume. This is especially valuable

when sealing large and moving gaps.

The elastomeric smoke blade acts

as a draught seal in normal use and

resists the passage of smoke, thus

meeting the needs of BS 5588: Parts

1 and 2.

APPLICATION

Ultima is the perfect solution for

refurbishment projects, where the

behaviour of the door is an unknown

quantity. It is recommended however,

that advice should be sought from

the Sealmaster Technical Services

Department, before installation into

existing doorsets. There are two

versions of the Ultima sections.

Those with angled blade smoke seals,

designated for use in single action

doors, are designated as Ultima 30

and Ultima 60.

Ultima 30(S)5mm deep x 21mm wide.

Ultima 60(S)7.5mm deep x 21mm wide.

FIRE & SMOKE SEALS

30 MINUTES (30(S))

60 MINUTES (60(S))

Index Page

1514

SEAL TYPE

ULTIMA 30(S)ULTIMA 60(S)

as necessary. Once adjustments have

been made, the profile is pinned

fully into position. Where the seal is

interrupted at the hinges/lock striker

plates, protection is provided by

fitting Sealmaster Intumescent Plugs

as shown on page 21.

LONGEVITY

Ultima intumescent compounds are

inherently resistant to atmospheric

carbon dioxide and moisture, so that

additional protective coatings are

unnecessary. These claims are

substantiated by laboratory

controlled tests and, in the case of

the mono-ammonium phosphate

formula, by actual case histories.

AUTHORITY

The Ultima intumescent fire and

smoke seal, has been tested by

TRADA. The criteria covering

evidence of performance across

variable fire-resisting doorsets are

wide ranging. The following examples

describe independent fire tests for

both 30 and 60 minutes fire door

assemblies:

21mm

5mm

21mm

7.5mm

Ultima 30

Ultima 60

21mm

5mm

Ultima 30S

21mm

7.5mm

Ultima 60S

FOR 30 MINUTES (FD30S)

Door size: 2040mm x 926mm.

Door: Shadbolt Shadmaster fitted with 500mm overpanel.

Frame: Soft wood 90mm x 37mm with 12mm planted stops.

Door types: Single-action unlatched opening towards furnace. Result (when tested to BS 476 Part 22 1987)

Integrity: 50 minutes.

Insulation: 50 minutes.

FOR 60 MINUTES (FD60S)

Door size: 2040mm x 826mm.

Door: Noberne Series 1

Frame: 92mm x 57mm UTILE hardwood frame with 19mm deep integral doorstop.

Door types: Single-action unlatched opening towards furnace. Result (when tested to BS 476 Part 8 1972)

Integrity: 76 minutes.

Insulation: 76 minutes.

Date of test: 20 March 1987.Other examples of performance are available on request from Sealmaster.

FIRE & SMOKE SEALS

30 MINUTES (30(S))

60 MINUTES (60(S))

Index Page

2120

INTRODUCTION

Fire door ventilators permit a free

flow of air up to 160m3/hour, and can

be fitted within 30 and 60 minute

fire doors and walls, whilst maintaining

the integrity of the fire compartment.

Two models are available, offering

a choice of fire or fire and smoke

protection and both are easily installed

with minimal restrictions on siting.

DESCRIPTION

Both ventilators are manufactured

from galvanised steel sheets, with

louvre plates on each face. Standard

finish is satin aluminium, with

coloured finishes to special order.

INTRODUCTION

Fire doors may be vulnerable to the

intense heat transferred through the

APPLICATION

Ventilators can be used in new or

existing fire doors and can be

mounted in a high or low position.

An opening of 260mm x 135mm is

required and once the ventilator is in

position any gaps should be sealed

with Intumescent Compound.

Ventilators can also be fitted into

walls using special extender units.

OPERATION

The intumescent seal in both units is

activated by the high temperatures

experienced in a fire. In model

VH60/FS a cold smoke shutter which

is powered by the fire alarm circuit is

mass of metal that door hinges and

latch plates represent. This can cause

charring and ignition. Intumescent

plugs, comprising a short length of

triggered on activation of the fire or

smoke alarm system. A warning light

indicates when the shutter is closed

and the power is reinstated.

OPTIONAL MODELS

Model VH60/F provides 60 minute

protection against fire and is

maintenance-free once fitted. It is

ideal where fire, rather than cold

smoke is perceived to be the

predominant risk. Where there is a

risk of cold smoke, the model VH60/

FS, which incorporates a

magnetically-operated cold smoke

shutter, should be specified.

AUTHORITY

Both models have been tested in 60

minute fire doors by TRADA, the

VH60/FS model is also subject to

an assessment by international Fire

Consultants (IFC).

metal tubing filled with intumescent

material, are used to protect these

areas by preventing the passage of

flaming or hot gases by smothering

the surrounding areas on activation.

DESCRIPTION

The plugs are located in holes drilled

through hinges, striker plates and

pivot mechanisms (as shown).

PRODUCT NAME

VENTILATORSFIRE & SMOKE VENTILATORS

30 OR 60 MINUTES

Model VH60/FS

PRODUCT NAME

INTUMESCENTPLUGS

FIRE RESISTANT PLUGS

30 MINUTES

Index Page

Owner

Text Box

Documents

Intumescent Seals for Fire Doors & Compartments protection/fire protection... · 2015-04-16 · Intumescent seals are a practical, well-established method of achieving Fire Resistance