Installation Guide

GENERAL & INSTALLATION INSTRUCTIONS 2G+5G (RT)
Name Date modified/printed File Doc.no Rev. Page
Svante BERNOW 14-04-30/ 14-04-30 2G+5G [Doc.no] 080908 2(9)
The floor must be:
i. Dry: Measure and file always cement screed /concrete/anhydrite with adequate
test instruments. Cement screed/Concrete need long time dry - in worst cases up to
one year.
Requirements, moisture content limits
For concrete sub floors:
Calcium/Chloride test (US market) or
A conservative but generally recommended allowable amount of moisture
emission as expressed by the calcium chloride test is 3.0 pounds per
1,000 square feet per 24 hours at the time of the installation of the flooring.
A note of caution: Use care in lid dealing and removal of the dish, and
weighing as exposure to atmosphere will dramatically effect the results.
(www.woodfloorsonline.com).
< 2% CM (CM-method) or
< 95 % RH (in Sweden 90% RH) see table below:
Concrete slab Measure depth Marks
On the ground 0,4 H Single sided drying
In beams 0,2 H Double sided drying
H = thickness of the concrete construction, screed excluded.
It is recommended to contact a certified company (in SE RBK-
Inspector) for a correct test of the RH-humidity
For anhydrite < 0,5 % CM
PLEASE note that all types of cement screed/concrete/tiles sub floors require a
moisture barrier - an ageing resistant PE - plastic film, min. 0,20 mm thick.
(sd-value ≅100m) overlapping minimum 20 cm and taped.
For wood floors the moisture content must be ca 8 % (equivalent to ca 50 % RH
and 20 °C. Measure and file.
Please note that sub floor construction boards, for example particle
board/plywood at installation may have a too high moisture content.
Measure, file. and let dry, if necessary.
ii. Flat: Measure always with a vertical positioned floor plank.
Unevenness + 2 mm over 2m must be levelled.
Tip: use flooring paper or newspapers to level your sub floor – never use foams or
other soft materials. Check always the floor afterwards.
iii. Firm and Clean: Cross check old wood floors, nail/screw to eliminate squeaking.
Brush or vacuum clean your floor - work clean!
II Sound insulation
Sound insulation material must be installed (over the PE-plastic film, if so required).
Use flooring paper, 2 mm cork, HD-foams (over 30 kg/m3) max 2mm or other approved
underlay materials.