FrameFit Bottom Door Seal Based on Leaving a Maximum 8mm Gap

Product code: BDSC30

Product information

Bottom Door Seal Fitting:

Installing FrameFit BDS to uneven floors

PLEASE NOTE ALL OPTIONS HAS ALLOWED FOR AN APPROXIMATE 7 - 8 MM GAP TO FINISH: FOR EXAMPLE, IF YOUR FLOOR TO UNDERSIDE OF DOOR IS 15 MM YOU WILL RECIEVE, A BDS PROFILE FILLED WITH 2 X 3MM LM FRAMEFIT, THIS INCLUDES 2MM THICKNESS OF THE CARRIER, THIS WILL LEAVE APPROXIMATELEY 7MM CLEARENCE GAP UNDER THE DOOR.

FrameFit BDS FD30 & FD60 - Fire Only, Not Exceeding 8 mm gap from floor to underside of door
	Variant Chart	Carrier Plus FrameFit Configuration	Finished Level
9 mm	Carrier 2 mm	LM/1.5	5.5 mm
10mm	Carrier 2 mm	LM/1.5	6.5 mm
11mm	Carrier 2 mm	LM/1.5	7.5 mm
12mm	Carrier 2 mm	LM/3	7.0 mm
13mm	Carrier 2 mm	LM/3	8.0 mm
14mm	Carrier 2 mm	LM/1.5 + LM/3	7.5 mm
15mm	Carrier 2 mm	LM/3 + LM/3	7.0 mm
16mm	Carrier 2 mm	LM/3 + LM/3	8.0 mm
17mm	Carrier 2 mm	LM/5 + LM/3	7.0 mm
18mm	Carrier 2 mm	LM/5 + LM/3	8.0 mm
19mm	Carrier 2 mm	LM/5 + LM/3 + LM/1.5	7.5 mm
20mm	Carrier 2 mm	LM/5 + LM/5	8.0 mm

FrameFit Bottom Door Seals

FFBDS30 for 30 minute doors and FFBDS60 - for 60 minute doors

Introduction

This document provides guidance to installers on how to install the FrameFit Bottom Door Seal to reduce and remove gaps in non-complaint fire doors. The seals remediate both FD30 and FD60 Fire Doors and have a built in Smoke Seal. Please note, only use the LM FrameFit profiles for the Bottom Door Seal.

Instructions

1. With the door closed carefully measure the gap at the base of the door with an accurate measuring device. Please ensure you measure both the ends and the middle of the door We recommend making a note of the measurements.

2. With the door open please repeat step one, again, record the results. This is to ensure the consistency of the measurements with the door open and closed avoiding issues with future operation.

3. Measure the door width with an accurate measuring device and record the dimensions.

4. Using the appropriate Bottom Door Seal (BDS30 or BDS60) from the packaging and measure the required length. Carefully cut the BDS30/60 to the required length with a sharp blade.

5. Calculate the required amount of FrameFit required (LM/44 or LM/54 profiles only) to restore the gap to within 8mm tolerance. Please see the table below for reference.

6. Place the FrameFit LM profiles into the Bottom Door Seal and cut to the require length ensuring a flush finish at both ends.

7. Remove the backing tape from the FrameFit and adhere to the Bottom Door Channel. Repeat for all required FrameFit LM profiles lengths.

8. In preparation for attaching to the bottom edge of the fire door. Pre-drill 3No holes through the BDS and FrameFit LM profiles. 1No 25mm from each end and 1No in the middle.

9. Remove the door from it’s frame and safely secure it, so that you have full access to the bottom edge. Using M5 wood screws (approx15-20mm larger than the gap you wish to fill) screw the Bottom Door Seal onto the bottom door edge, ensuring that the Bottom Door Seal is flush to the door at both ends.

10. Rehang the door, checking the door opens and closes without obstruction and the gap has been reduced to no more than the maximum 8mm.

Fitting FrameFit BDS without taking the door off.

Measure the width of the door and cut the BDS carrier accordingly.
Open the door and slide the profile under the door until flush.
Check that the door will close and that you have the correct amount of FrameFit installed.
When everything is correct, using a hammer 3 fixings are required, simply pin the BDS at both ends and one in the middle on the flanges. Please remember to pin the carrier on both sides.
Please see our BDS fitting video for more information.