Description
Product
Features：
This product is a kind of unbreakable asphalt waterproof
cushion which belongs to the waterproof and wet isolation
construction material area, it has excellent tensile flexibility.it
is composed by the polymer felt, tensile layer and release layer.
The bitumen compound layer is SBS modified bitumen compound layer
or rubber bitumen compound layer.in order to solve the problem of
easy breaking and weak tensile strength; we coat the felt layer
with compound bitumen layer and tensile layer. We paint the mineral
sand onto both side of the cushion to stop the stickiness. This
tensile flexibility waterproof cushion is flexible, at the same
time, it has excellent tensile strength, and it is waterproof and
moist insulation，it has very long service time, its produce
technology is simple and suitable for waterproof project of the
base, floor and roof for all kinds of buildings.
Product
Characteristic
1. High
dosage SBS, ensure the long term service time.
2. Unique
formula ensure the SBS have a good compatibility with the
bitumen, it will grantee the stability and stickiness in long term
service time.
3. Advanced
produce technology and equipment can ensure the quality of
membrane
Applicable scope:
Application range
1. Viaduct，bridge,
underpass, tunnel，underground，park，air station
2. Flat
roof, arch roof, cement preset roof
3. Irrigation
canal, catchment，granary
Specification
|
Description
|
Double Sand asphalt roofing felt
–composite felt
|
|
Thickness
|
2.0mm
|
|
Unit weight
|
********0g/m2
|
|
width
|
1m
|
|
Length
|
*0m;*0m.Customized
|
Technical data
|
Tensile strength(N/*0mm)
|
|
|
crosswise
|
**7
|
|
lengthways
|
**3
|
|
Soluble substance content
(g/m2)
|
***1
|
|
Low temperature flexibility
|
*0℃x2h,No cracking
|
Installation Instructions of
double sand waterproof cushion
(1). Double sand waterproof cushion is designed for new or
reproofing work over properly build and supported wood roof decks
or concrete roof decks with a slope of ≥*0 degrees.
(2). When they are installed over the wood roof decks, they
will be fixed with adequate felt nails; when they are installed
over the concrete roof decks, they will be fixed both with
adhesives and adequate steel felt nails.
(3). Apply them over properly prepared roof deck, starting at
bottom of roof and working across and up.
Starter
course
(A)
Trim tabs off all starter course double sand waterproof
cushions, so sealant can seal along the eave’s
edge.
(B) Complete rest of starter course, use at least five
fasteners for each waterproof cushion, placed 2″to 3″up from the
eaves edge.
First
course
(C). Apply first course, starting with a full waterproof
cushion, even with the starter course, use fasteners or adhesives
to fix each waterproof cushion.
Second
course
(D). Begin second course by
positioning first waterproof cushion from the end of the underlying
waterproof cushion,-with the butt edge aligned
with the top of the cutouts in the course below.
Third
course
(E). Begin each subsequent course by
positioning the first waterproof cushion from the end of the
underlying waterproof cushion,with the butt edge aligned with the
top of the cutouts in the course below.
(F). Leave about 5″(**5mm) exposure,
fasten securely and trim excess overhang at rake.
(G). each waterproof cushion will be fixed by at least five
fasteners. If the roof decks with a slope of ≥**0 degrees, more
fasteners and adhesives will be used.
