- Technical Guide
- Fire
- Fire
FD30 Intumescent Seal Specification
Selecting the correct intumescent seal specification is essential for achieving your required fire resistance rating. Whether you're working with single doors, double doors, or configurations with overpanels, we'll help you select the right intumescent seal solution.
Published 03 September 2023
Selecting the correct intumescent seal specification is essential for achieving your required fire resistance rating. For FD30 rated doors (providing 30 minutes of fire resistance), the specification varies depending on your door configuration and frame type.
Our comprehensive specifications ensure that every fire door installation meets the highest safety standards while providing the protection you need. Whether you're working with single doors, double doors, or configurations with overpanels, we'll help you select the right intumescent seal solution.
Intumescent Seal Specification for FD30 Door Leaves Installed in Flush Timber Frames
|
Location |
|
Size and Position |
|
Stiles/jambs |
|
20 x 4mm seal centrally fitted in the frame reveal or leaf edge (preferred) |
|
Head |
FCE30, FCM30, |
1no 20 x 4mm seal fitted centrally in the frame reveal or leaf edge (preferred) |
|
|
FCT30 only |
2no 15 x 4mm seals centrally fitted in one leaf edge |
|
Flush meeting stiles |
|
1no 20 x 4 mm or 2no 15 x 4mm seal centrally fitted in one leaf edge |
|
Rebated meeting stiles |
|
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either leaf edge |
|
Flush overpanel junction |
|
1no 20 x 4 mm seal centrally fitted in top of leaf or bottom of overpanel |
|
Rebated overpanel junction |
|
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either the top of the leaf or the bottom of the overpanel |
|
Interface between overpanel and frame |
|
1no 20 x 4 mm seal centrally fitted in the frame reveal or overpanel edge (preferred) |
Intumescent Seal Specification for FD30 Door Leaves Installed in Rebated Timber Frames
|
Location |
Size and Position |
|
Stiles/jambs |
1no 20 x 4 mm seal fitted centrally in the rebate in the frame reveal or the nib of the leaf edge (preferred) |
|
Head |
1no 20 x 4 mm seal fitted centrally in the rebate in the frame reveal or the nib of the leaf edge (preferred) |
|
Flush meeting stiles |
1no 20 x 4 mm seal fitted centrally in one leaf edge |
|
Rebated meeting stiles |
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either leaf edge |
|
Flush overpanel junction |
1no 20 x 4 mm seal fitted centrally in top of leaf or bottom of overpanel |
|
Rebated overpanel junction |
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either the top of the leaf or the bottom of the overpanel |
|
Interface between overpanel and frame |
1no 20 x 4 mm seal fitted centrally in the rebate in the frame reveal or the nib of the leaf edge (preferred) |
Intumescent Seal Specification for FD30 Door Leaves Installed in Steel Frames
|
Location |
Size and Position |
|
Stiles/jambs |
1no 20 x 6 mm seal fitted centrally in the leaf edge |
|
Head |
1no 20 x 6 mm seal fitted centrally in the leaf edge |
|
Flush meeting stiles |
1no 20 x 4 mm seal fitted centrally in one leaf edge |
|
Rebated meeting stiles |
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either leaf edge |
|
Flush overpanel junction |
1no 20 x 4 mm seal fitted centrally in top of leaf or bottom of overpanel |
|
Rebated overpanel junction |
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either the top of the leaf or the bottom of the overpanel |
|
Interface between overpanel and frame |
1no 20 x 6 mm seal fitted centrally in the overpanel edge |
Intumescent Seal Specification for FD30 Door Leaves Installed in Aluminium Frames
|
Location |
Size and Position |
|
Stiles/jambs |
1no 20 x 4 mm seal fitted centrally in the leaf edge |
|
Head |
1no 20 x 4 mm seal fitted centrally in the leaf edge |
|
Enhanced head (FCH30 only) |
1no 30 x 4 mm seal fitted centrally in one leaf edge |
|
Flush meeting stiles |
1no 20 x 4 mm seal fitted centrally in one leaf edge |
|
Rebated meeting stiles |
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either leaf edge |
|
Flush overpanel junction |
1no 20 x 4 mm seal fitted centrally in top of leaf or bottom of overpanel |
|
Rebated overpanel junction |
2no 10 x 4 mm seals; one fitted centrally in one rebate and the other fitted centrally in the other rebate, both can be fitted in either the top of the leaf or the bottom of the overpanel |
|
Interface between overpanel and frame |
1no 20 x 4 mm seal fitted centrally in the overpanel edge |