ROOF WATERPROOFING
(NEW CONSTRUCTION)
WHY THIS HAPPENS
• Concrete being a Porous material , it absorbs water
and may leads to water leakage.
• Due to excess usage of water in concrete, it shrink
and cracks. These cracks are entry points for
water leakage.
• In new structures, roof is exposed to harsh weather
(hot/cold/rain) cycles, which lead to cracks.
• Cracks can occur due to settlement of the structure
• Concrete being inflexible/rigid material cannot take
these movements and tends to crack.
• Improper slope of roofs may result in water ponding at
lower points on the roof.
Solution
DR. FIXIT
PIDIFIN 2K
Why choose Dr. Fixit Pidifin 2K
Excellent adhesion to High film build-up of 1 mm, which
concrete and masonry gives excellent waterproofing
substrates
Highly flexible coating Non-toxic
with an elongation of
50%, which can give
bridge cracks up to
1 mm
Easily applied by
brush, roller or trowel
How to Apply
STEP 1 STEP 2
Concrete surfaces should Repair all cracks by
be fully cured (minimum 28 priming (1 URP : 1 cement)
days) prior to application and repairing with mortar
and clean the surface modified with Dr. Fixit
thoroughly. Pidicrete URP (10% of the
weight of cement) at
cement sand ratio of 1:3.
STEP 3 STEP 4
Clean the wall and floor Apply 2 coats of
junctions and make angle Dr. Fixit Pidifin 2K
fillet/watta with cement: @ 6 sq.ft/kg over entire
sand mortar ratio of 1:3 horizontal surface
admixed with Dr. Fixit extended up to 300 mm
Pidicrete URP (10% by from final finish level
weight of cement) at the along the parapet wall.
junction of wall and floor. Lay 150 mm-wide 45
GSM glass fibre mesh at
the angle fillet portion in
wet condition over the
first coat.
100 gsm geotextile
STEP 5 STEP 6
Spread 100 gsm Over and above this
geotextile over cured concrete screed of min.
Dr. Fixit Pidifin 2K as 40–50 mm (1 cement : 1.5
separation layer. sand : 3 aggregate) and
admixed with Dr. Fixit
Pidiproof LW+ (200 mL
per bag of cement) and
slope maintained through
drain outlet
STEP 7 STEP 8
Provide control joints with Optional: Apply two coats
3.25 m x 3.25 m. After of Dr. Fixit Roofseal Top
28–30 days, these joints can Coat, without water
be filled with a suitable dilution, that has Solar
Dr. Fixit PU sealant. Reflectance Index (SRI)
value 106 and reduces
surface temperature up to
10ºC** in the peak summer.
1800 209 5504 info.drfixit@pidilite.com www.drfixit.co.in
SMS <DF> to 57575 for Dr. Fixit Waterproofing Guide
