15
Fix the PROMAFOUR
®
construction boards to the vertical PROMAFOUR
®
-STUDS with staples or screws, depending
on the design and the structure of the encasement and the installer’s equipment. The cutting, drilling, sanding etc. can be
executed with traditional tools. If you prefer using stainless steel screws, you have to pick sharp-pointed screws with a
self-milling head.
L = length of screw or staple
A = hart to hart distance
r = distance to the side of the board
d = thickness of the board
R = width of the staples
Fixation to metal profi les, thickness < 2 mm
Hardened steel phosphate drywall screws with Hi-Lo thread and milling ribs.
L = d + 25 mm
A = 250 mm
r = 15 mm
Fixation into the edge of the board and on PROMAFOUR
®
-STUDS
Staples
R = 10 mm when d ≥ 8 mm
L = 2 to 3 x d (min. 40 mm)
A = 250 mm
A = 100 mm stapled alternating at an angle to the edge r = 8 mm (PROMAFOUR
®
-STUDS)
For functional reasons, the boards which are fi xed with staples have to have a minimal thickness of 12 mm.
Hardened steel phosphate drywall screws with Hi-Lo thread and milling ribs.
L = d + 25 mm
A = 250 mm
For functional reasons, boards which are fi xed with screws, have to have a minimal thickness of 15 mm.
Depending on the type of stove (wood- or gas-fi red) and its dimensions, we recommend you to build the PROMAFOUR
®
encasement as described in the table below and following the installation instructions. When casing a large fi re, if you want
to attach heavier objects, such as a fl at screen or a mirror to the encasement or if you want to tile it, we recommend a
PROMAFOUR
®
construction board with a thickness of 18 mm.
Construction recommendations
Fixing mediums
Tables
Type of fi re
Width of
the fi re
Thickness of
the board
Use of PROMAFOUR
®
-STUDS and
U-profi les
Fixation
Wood-burning
stoves
≤ 1.25 m
PROMAFOUR
®
boards 12 mm
PROMAFOUR
®
-STUDS 68 x18 mm on corners.
Metal U profi les 70 mm on fl oor and ceiling.
PROMAFOUR
®
-GLUE 1000
and staples or screws.
Gas fi res
≤ 1.25 m
PROMAFOUR
®
boards 12 mm
Metal profi les or PROMAFOUR
®
-STUDS
68 x18 mm on corners.
Metal U profi les 70 mm on fl oor and ceiling.
PROMAFOUR
®
-GLUE 1000
and staples or screws.
Wood-burning
stoves or
gas fi res
≤ 1.25 m
PROMAFOUR
®
boards 15 mm
or 18 mm
No PROMAFOUR
®
-STUDS required.
Metal U profi les 70 mm on fl oor and ceiling.
PROMAFOUR
®
-GLUE 1000
and staples or screws.
Wood-burning
stoves or
gas fi res
> 1.25 m
PROMAFOUR
®
boards 12 mm
or 15 mm
PROMAFOUR
®
-STUDS 68 x18 mm on corners
and every 625 mm.
Metal U profi les 70 mm on fl oor and ceiling.
PROMAFOUR
®
GLUE 1000
and staples or screws.
Wood-burning
stoves
> 1.25 m
PROMAFOUR
®
boards 18 mm
PROMAFOUR
®
-STUDS 68 x18 mm on corners
and every 830 mm.
Metal U profi les 70 mm on fl oor and ceiling.
PROMAFOUR
®
-GLUE 1000
and staples or screws.