As part of a project to upgrade some old Victorian doors to 20min fire doors (agreement with building control), I need to decrease the gap between door and frame on several of them and them use Intumescent coating on the internal side & edges of the doors. Then finally fit intumescent strips (fire only, not smoke).
The gaps aren't uniform in most cases therefore would require tapered strip wood either on the frame or door to achieve 3mm +/- 1mm. As an example the gaps between the door and frame on one door are 10mm and taper off to 2mm on the vertical (lock) side.
What is the best way to cut tapered strips to do this? I have a table saw but it would probably be a bit rough to cut strips that thin on one end.
Alternatively would it be better to plane the door to achieve a uniform gap top to bottom and then fit uniform lengths of strip wood?
The gaps aren't uniform in most cases therefore would require tapered strip wood either on the frame or door to achieve 3mm +/- 1mm. As an example the gaps between the door and frame on one door are 10mm and taper off to 2mm on the vertical (lock) side.
What is the best way to cut tapered strips to do this? I have a table saw but it would probably be a bit rough to cut strips that thin on one end.
Alternatively would it be better to plane the door to achieve a uniform gap top to bottom and then fit uniform lengths of strip wood?