Dr Fixit 652 Roofseal Classic White 20L

Dr. Fixit Roofseal Classic is a single component, insulating elastomeric waterproof coating for roofs that offers a seal against water and heat. Dr. Fixit Roofseal Top Coat is based on PU – Acrylic hybrid emulsion technology reinforced with nano fibers. It combines the benefits of waterproofing as well as heat reduction in a single product.

Areas of Application

Over existing building Flat/ Slope roof surface like

• Brick-Bat Coba finish surface
• Cement mortar screed
• China mosaic tile roofs.

Features

• Waterproofing – Completely protect surfaces from water penetration
• Crack Bridging – Outstanding flexibility with crack bridging up to 2mm
• Tough coating – Suitable for light foot traffic
• Reflective roof coating – Reduces surface temperature up to 10ºC in the peak summer
• User friendly – Single component, Ready to use easy to apply
• Eco friendly – Non – toxic and VOC complaint water based coating

Surface Preparation

• Roof substrate must be pressure-washed with water with, a minimum working pressure of 1,400 psi is to be used to and/or remove all dirt, dust, chalking and waste products.
• When encountering roof substrates that have living organisms such as algae, mold or fungus, should be clean with 3:1 bleach solution or biowash shall be used to kill and remove these organisms during the roof cleaning.
• All new cement-sand, freshly laid screed / IPS surfaces should be allowed to age at least 12 weeks before application of topcoat surface coating.
• Ensure that the roof slope have a minimum of 1 in 80 or 100 is already provided.
• Check the soundness of the top screed, half round angel fillet / unsound plaster on vertical surface / joints surrounding pipe ducts of rainwater outlet, look for de-bonding signs by tapping with nylon hammer.
• Ensure there is a 1 water drain outlet of minimum 100 mm dia for 500 Sq. Ft floor area and gaps around pipe inserts should be sealed properly with polymer modified mortar.
• Stagnant water due to undulation in the roof surface should be marked and repaired with PMM. • All joints / corners / penetration points, rainwater outlets, marble / tile strip joints should be grouted with PMM.
• Ensure that all penetration points, mechanical equipment, HVAC & solar panels are suitably placed on the up stands and rounded with angle fillet.

Repair and Polymer Modified Mortar (PMM) treatment for damaged or de-bonded terrace surface

• Check the existing roof surface with nylon hammer and remove the existing unsound, de-bonded screed, surface defects, etc. Break and remove the hollow sound screed and plaster surface with mechanical cutter.
• Clean the surface and brush apply a bond coat of Dr. Fixit Pidicrete URP mix in the ratio of 1:1 (URP 1: Cement 1) by volume to make it lump free slurry when applied on in the pre wet surface.
• Mix Dr. Fixit Pidicrete URP 10% by weight of cement in (M20) concrete in ratio of 1:1.5:3 i.e., one bag of 50kg cements: 1.5 times volume of sand: 3 times volume of aggregates: 25L water. Level the repair mortar and finish with trowel.
• Moist wet curing must be done up to 3-4 days. Prolonged wet curing will minimize the chances of cracking and improve the physical properties.