ROOFMATE LG-X
ROOFMATE™ SL and ROOFMATE LG-X are the STYROFOAM™ Solutions for insulating inverted roofs. The boards are unaffected by the conditions encountered on flat roofs, including wide fluctuations in temperature and repeated freeze/thaw cycles. ROOFMATE SL insulation is intended for use on heavyweight decks (eg reinforced concrete) with a ballast layer of gravel or concrete slabs. It can also be used in the ROOFMATE MinK system, which will reduce the rain water cooling penalty, thereby minimising the insulation thickness required. Its rot resistance makes it ideal for insulating green roofs.
ROOFMATE LG-X boards have a 10mm modified mortar topping and are tongue and grooved, eliminating the need for separate ballast and making it possible to gain the benefits of the inverted roof on lightweight decks.
Further information on designing with ROOFMATE LG-X insulation can be found in Insulating with STYROFOAM: Insulating Inverted roofs.
Safety Data Sheets
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ROOFMATE LG-X |
| Properties |
Standard |
Unit |
CE Code |
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| Thermal conductivity* |
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| ≤80mm |
BS EN 12667 |
W/mK |
λD |
0.029 |
| 81-120mm |
BS EN 12667 |
W/mK |
λD |
0.029 |
| >120mm |
BS EN 12667 |
W/mK |
λD |
0.031 |
| Compressive strength at 10% or break (90 days) |
BS EN 826 |
kN/m2 |
CS(10Y)i |
300 |
| Design load 2% maximum deflection (50 years) |
BS EN 1606 |
kN/m2 |
CC(2/1.5/50)σC |
110 |
| Water vapour resistivity |
BS EN 12086 |
MNs/gm |
– |
825 |
| Water vapour diffusion resistance factor |
BS EN 12086 |
m |
MUi |
165 |
| Water absorption |
|
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| Total immersion |
BS EN 12087 |
% vol |
WL(T)i |
<0.5 |
| Diffusion |
BS EN 12088 |
% vol |
WL(V)i |
<3 |
| Freeze/thaw, after 300 cycles |
BS EN12091 |
% vol |
FTi |
<1 |
| Dimensional stability |
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| 48hrs at 70C/90%RH |
BS EN 1604 |
% |
DS(TH) |
<2 |
| 168hrs at 40kPa/70C |
BS EN 1605 |
% |
DLT(2)5 |
<5 |
| Density (aim) |
BS EN 1602 |
kg/m3 |
– |
38 |
| Dimensions |
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| Length |
BS EN 822 |
mm |
– |
1200 |
| Width |
BS EN 822 |
mm |
– |
600 |
| Thickness |
BS EN 823 |
mm |
Ti |
60, 70, 90, 110, 130*** |
| Fire classification – reaction to fire |
BS EN 13164
BS EN 13501 |
– |
Euroclass |
E |
| Appearance |
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| Surface |
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mortar topping |
| Edge profile |
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tongue & groove |
| Application |
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Inverted roofs – lightweight |
| Certification |
BBA Agrément |
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– |
The properties given are typical (unless stated otherwise). Results of tests described are available from Dow
* declared 90/90 value - BS EN 13164
** length 2500mm
*** includes 10mm mortar topping; thicker products available on request up to 190mm
