1 scope
This technology is applicable for
industrial and civil construction roofing asphalt roll roofing waterproofing
project construction.
2 construction preparation
2.1 materials and requirements:
2.1.1 asphalt roll roofing, label, quality,
technical characteristics, must conform to the requirements of the design and
construction technical standards. Product certification, and retest.
2.1.1.1 bitumen waterproofing membrane
specification shown in table 10-4.
Bitumen waterproofing membrane
specification sheet 10-4
Label width (mm) roll area (m2) volume
weight (kg)
No. 350, 915 20 ± 0.3 powder felt more than
28.5
No. 350, 1000 20 ± 0.3 felt more than 31.5
No. 500, 915 20 ± 0.3 powder
felt ≥ 39.5
No. 500, 1000 20 ± 0.3 felt over 42.5
2.1.1.2 the physical properties of asphalt
waterproofing membrane as shown in table 10-5.
2.1.1.3 asphalt linoleum technical glass
cloth is shown in table 10-6.
2.1.2 cementing materials:
2.1.2.1 the construction asphalt 10th,
30th, or asphalt, 60th, 60th b.
2.1.2.2 filler: Slate powder, talc, mica,
asbestos cement, the moisture content is not more than 3% powder by 900
screens.
2.1.3 other materials: bean stone requested
size 3~5mm, MA, benzene, gasoline, kerosene, glass cloth and so on.
2.1.4 cold operation LQ-Leng Ma fat,
technical performance is shown in table 10-7.
Table 10-5 of the physical properties of
asphalt waterproofing membrane
Performance requirements
No. 350, No. 500
Vertical pull (25 ℃ ± 2 ℃) (n) ≥ 340 440
Heat resistance (85 ℃ ± 2 c, h) is not
flowing, no concentration of bubbles
Flexible (18 ± 2 ℃) around the
20mm rods no cracks around the 25mm Rod crack
Watertightness of pressure (MPa) ≥ 0.10 ≥ 0.15
Watertightness hold time (min) ≥ 30 ≥ 30
Glass cloth of asphalt linoleum technical
table 10-6
Project performance indicators
Glass fiber cloth weights (g/m2) is not
greater than 103
Resistance to delamination (peeling area)
is not less than 2/3
Pressure (MPa) is not less than ≥ 0.2
Watertightness hold time (min) not less
than 30
Water absorption (%) Not more than 0.1
At 85 ℃ ± 2 ℃ temperature
heat-resistance heating 2H, coating layers without sliding
Pulling force (n) at 18 ± 2 ℃ vertically
not less than 200
Flexibility at 0 ℃ around 20mm
bar no crack
LQ-Leng Ma di fat technical table 10-7
Project performance indicators
85 ° c, 2H, 1:1, heat-resistance gradient
flow-free slide
Flexibility-5, 2H, around 20mm great no
cracks
Bond opened not more than 1/3
Note: Leng Ma fat tire and glass cloth of
asphalt roofing sheet supporting the use of cold work and construction.
2.2 the main tools:
2.2.1 special pots of asphalt, fuel (coal),
holding.
2.2.2 oil barrels, oil pot, strainer
(sieve), shovels, scrapers, Brown brush, thermometer (350~400℃).
2.2.3 equipment, fire extinguishers and
other fire equipment.
2.3 operating conditions:
2.3.1 roof construction, upon the request
of master construction plans, select waterproofing professional team,
preparation of waterproof construction programmes.
2.3.2 roof construction should be tested
according to the construction process, primary surface must be smooth, sound,
dry, clean, and no sand, defects such as cracking and hollowing.
2.3.3 waterproof layer construction of grass-roots
must be finished, after curing, drying, and slope, the technical code for
design and construction requirements, without water.
2.3.4 waterproof layer construction,
prominent roof of onion embedded parts, floor ring fixed structures, such as,
the haulage rope, hanging shelf, should be dealt with at basic level; Yin-Yang
chimney corners, parapet, ventilation, skylights, expansion joints, expansion
joint, circular arc of RADIUS 150mm or obtuse angle.
2.3.5 materials, tools and equipment
readiness.
3 operational processes
3.1 process:
Basic asphalt boiled cleanup → batching → cold spray
brush oil and laying additional layer coil →
Tile roof the first tier linoleum linoleum → tile roof → laying
protective layer
3.2 basic cleanup: waterproofing roof construction,
acceptance of the primary surface clean of dust and debris.
3.3 asphalt boiled ingredients:
3.3.1 asphalt boiled: the first asphalt
broken into pieces, into the asphalt pans for even heat, heating at any time
during the mix, melted with a strainer (skimmers) out clearing debris in a
timely manner, sitting up late when dehydration is no bubble temperature
Asphalt used in roofing to boil temperature should not be higher than 240 ℃,
temperature of not less than 190 ℃.
3.3.2 cold oil preparation: boil pitch put
inside a container, cool to 110 degrees, by injecting gasoline, with the
injected with stirring, making it all dissolved and mixture ratio (by weight)
for gasoline petroleum asphalt in 70%, 30%.
3.3.3 pitch Maddy lipid preparation: in
accordance with the provisions contained in Appendix a of the technical code
for roof Engineering Executive, pitch Maddy fat combined with ingredients
ingredients must be determined by laboratory tests, each class should check
Maddy fat heat resistance and flexibility.
3.4 spray brush cold Foundation oil:
asphalt linoleum volume material waterproof roofing in paste volume material
Qian, should will grass-roots surface cleanup clean, spray brush cold
Foundation oil, big surface spray brush Qian, should will corner, and onion,
and rain mouth, at first spray brush a again, then big area spray first again,
stay first again brushing cold end of oil dry Hou, again spray brush second
again, requirements spray brush uniform no leak end of, dry rear can Pu stick
volume material.
3.5 coil additional layer paving: asphalt
roll roofing, parapet walls, gutters, skylights wall, movement joints, chimney,
pipe junction with roof and cornices, gutters, roof and other parts of the
inclined ditch, gully, and additional layer first, coil as designed,
constructed of all parts shown in Figure 10-1~ figure 10-12.
3.6 linoleum tile roof for the first layer:
3.6.1 laying linoleum direction: according
to the slope of the roof and the roofing is affected by conditions such as
vibration, slope is less than 3% should be parallel to the roof tile; slope at
the time of 3%~15%, parallel or perpendicular to the roof tile when gradient is
more than 15% or roof by vibration, coil should be perpendicular to the roof
tile.
3.6.2 PU posted linoleum of order: level
across Siamese roofing, should first Pu high across Hou Pu low across, Pu
posted from minimum elevation at began to high elevation of direction roll Pu,
poured oil should sliding linoleum scroll of horizontal into serpentine
operation, Pu posted operation personnel with hands tight pressure linoleum
volume forward rolling laying, should forced uniform, to will poured oil
extrusion, and stick real, and not save air for degrees, and will extrusion
along side oil scraping to to flat for degrees; bond material thickness
straight for 1~1.5mm. Leng Ma fat thickness of direct 0.5~1mm.
3.6.3 paving the lap width of linoleum:
long edge not less than 70mm and the short edge not less than 100mm. If the
first piece of linoleum used flowers, empty shop, whose lap long edge not less
than 100mm and the short edge not less than 150mm.
3.7 second layer of tile roofing asphalt:
asphalt felt waterproof layer for a five-layer approach that both felt three,
practices with the first layer. First and second-tier linoleum staggered seam
is not less than 250mm. Lap seam with Ma fat seal design without the roof plate
cover should be brushing the last when Maddy fat (direct 2~3mm thick) with the
coating with the pea stone layer over top, note that even with the bond.
3.8 tile roof third floor linoleum: tar for
seven practices, operations with the first layer, the third with a second layer
of linoleum linoleum staggered seam.
Rust, brush paint, water fall mouth
connected layers of roll roofing should be firmly pasted on the Cup, crimp
width not less than 100mm. Water 500mm around the mouth, pan of water of not
less than 5%; grass-roots contact with water fall Cup 20mm wide, 20mm deep
grooves, with Maddy fat workmanship in compact, as shown in Figure 10-10.
3.9.4 extended roof pipe root practices:
around the roots into a cone, piping. connected with the screed at the Groove
Embedded sealing material, waterproof layer of wire gripping and embedded
sealing material. As shown in Figure 10-9.
3.10 the laying of coiled material
waterproof roof cover: asphalt felt roof laying sand of mung bean (small stone)
layer of bean stone shall be clean, diameter of 3~5mm, it is better to request
material resistant to weathering, painted in thick 2~3mm asphalt Maddy fat,
evenly spread bean stone, require bean stone bond.
4 quality criteria
4.1 project:
4.1.1 linoleum sheet and binding material,
marking and MA Marketing fat ratio, must comply with the design requirements
and technical code for roof engineering requirements.
4.1.2 roofing roofing waterproofing layers,
no leaking.
4.2 Basic project:
4.2.1 roofing waterproofing layer of
surface smoothness, the drainage requirements, no water phenomenon.
4.2.2 linoleum sheet tile quality, uniform
coat of oils should be cold base, laying method, press order and lap length
comply with the technical code for roof engineering requirements, paste-solid,
no-slip, Homburg, foaming, folds and other defects.
4.2.3 water pan, cornice and deformational
slots should be consistent with the provisions of the technical code for roof
engineering, firm paste, cover tightly; additional layer roofing coil, flashing
facades received first class, should comply with the design requirements and
technical code for roof engineering requirements.
4.2.4 asphalt roll roofing cover:
4.2.4.1 sand layer of mung bean: size
conform to the provisions of the technical code for roof engineering, screening
a clean, uniform sub shop, pre-heating drying, bonding, surface cleaning.
4.2.4.2 plate coating: surface is clean,
clear, consistent color, uniform seam, around straight plates no cracks,
corners and short cord; the slope meets the design requirements, not pan of
water, no water, pipe joints tight solid, leak-free. Elevation combined with
received header line, combined with the strong, the wall thickness is suitable.
4.2.4.3 overall protective: surface
hardening is bright and clean, no cracks, peeling, pockmarked face, sand and so
on; not pan of water, no water retention, the slope meets the design
requirements; tube combination, elevation, combined, received head combined
with a solid, no leakage.
4.2.5 exhaust roof: vertical and horizontal
exhaust duct opening up and vent installation is firm, correct position, closed
tight.
4.2.6 water fall mouth and deformation
joints, eaves:
Water fall mouth installation is firm,
smooth, accords with the design requirements.
Deformation of thin plate installed
straight joints, eaves, uniform coat of paint and finish, glossy.
4.3 allowable deviation, as shown in table
10-8.
Asphalt waterproofing membrane tolerance
table 10-8
Allowed deviation of the project method
1 lap width -10MM ft coil check
2 softening point ± 5 ℃ to check
Maddy fat laying temperature measurement in mind
Check 3 asphalt cement material using
temperature-10 ℃ when laying temperature record
5 finished product protection
5.1 the construction process should prevent
damage to insulation, screeds, waterproof layer, protective layer.
5.2 construction roofing cart leg
application of transported material linen bandage to prevent was ready to
surface damage.
5.3 waterproof layer construction should
take measures to prevent pollution of walls, cornices and doors and Windows,
and so on.
5.4 in roof construction should be cleaned
of debris, no blockage, such as water, oblique Groove.
5.5 the structural layer of the roof
construction should be carried out promptly, especially protective layer should
be continuous with the waterproof layer, to ensure the integrity of the
waterproof layer.
6 quality problems to be noticed
6.1 roof water: flashing of roof, gutters,
water pan is too small, irregularity: grass-roots should be design or do a pan
of water, linoleum sheet after paving, roof slope, flatness, the technical code
for roof engineering requirements.
6.2 roof leakage: waterproof layer paving
quality defects, waterproof layer and auxiliary stickers product protection is
not good, damage the waterproof layer, measures should be taken to strengthen
protection.
6.3 waterproof layer hollowing: base is not
dry, uneven paving compaction, Waterloo air control moisture content of
grass-roots operation attention when compacted to remove air.
7 quality records
This standard shall meet the following
quality records:
7.1 linoleum sheet and materials product
certificate and retest information.
7.2 mixing and pasting test of asphalt
binding material information.
7.3 hidden project quality inspection and
assessment of data and information.
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