Everything you need to know about waterproofing your home
Every South African homeowner can avoid lots of problems by waterproofing their homes.
1)Sika Cemflex reinforced waterproofing on 'Cemflex' membrane or simmilar approved applied in strict accordance with manufacturers details including waste (35m2) 2) One layer of DERBIGUM SP 4mm fully sealed to deck by torch on fusion or coldbond 90 ADHESIVE SPREAD at the rate of 1-3sqm per Litre depending on absorption of the surface. Side laps at 75mm and end laps at mm sealed together by torch on fusion. Vertical and horizontal turns should be fused to the primed surfaces; angles; outlets fillets and flat edges. All as recommended by DERBIGUM (m2) 3)Two coats of co polymer or bituminous aluminium paint (m2)
Waterproofing to the balcony: Aluminum doors will be removed to the balcony Aluminum doors and frames will be wrapped in bubble wrap and stored in the garage for safekeeping until re-installation. All cement and waterproofing layers will be chopped up and removed off-site from the balcony. Rubble skip will be on-site and removed once it is filled. All existing waterproofing will be removed. mm Turn-ups will be chopped off in order to apply the waterproofing application onto the bricks. Existing outlets will be removed. New 63mm Flange outlets will be fitted to the parapet walls to allow water to discharge outside of the balcony. Screed-to-fall will be done to ensure water runs out of the outlets, and that there will be no water ponding in any areas. 50x75mm Angle will be fitted where the door will be fitted to prevent water from running back into the rooms. The waterproofing application will consist of the following: x2 Coats of Mapei-Lastic Mapei-tape to all turn-ups and corners and into the cavities. Mapei-net the flat surface x1 coat will be applied, followed by the Mapei-net and Mapei-tape being applied on top of the 1st coat. 2nd coat will be applied over all of the above-mentioned after 24 hours. Aluminum doors and frames will be re-fitted. Turn-ups and bands around the frames will be plastered to a smooth finish. Waterproofing application and plaster will be left for x3 days before the painting and tiling can commence. New tiles will be installed.
Waterproofing to the balcony: Aluminum doors will be removed to the balcony. Aluminum doors and frames will be wrapped in bubble wrap and stored in the garage for safekeeping until re-installation. All cement and waterproofing layers will be chopped up and removed off-site from the balcony. Rubble skip will be on-site and removed once it is filled. All existing waterproofing will be removed. mm Turn-ups will be chopped off in order to apply the waterproofing application onto the bricks. Existing outlets will be removed. New 63mm Flange outlets will be fitted to the parapet walls to allow water to discharge outside of the balcony. Screed-to-fall will be done to ensure water runs out of the outlets, and that there will be no water ponding in any areas. 50x75mm Angle will be fitted where the door will be fitted to prevent water from running back into the rooms. The waterproofing application will consist of the following: x2 Coats of Mapei-Lastic Mapei-tape to all turn-ups and corners and into the cavities. Mapei-net the flat surface x1 coat will be applied, followed by the Mapei-net and Mapei-tape being applied on top of the 1st coat. 2nd coat will be applied over all of the above-mentioned after 24 hours. Aluminum doors and frames will be re-fitted. Turn-ups and bands around the frames will be plastered to a smooth finish. Waterproofing application and plaster will be left for x3 days before the painting and tiling can commence. New tiles will be installed.
Please I would like to have a quotation of a building that has a floor and ceiling that is damaged because of an air handling unit that is placed on top of timber floor. The ceiling below that floor is also affected. Please I would like to have the following in the quotation: 1. An investigation on the cause and extend of the water damage on the floor/ceiling. 2. On top of the timber floor there is a torch-on waterproof. What is the rate of the waterproof when it is removed and when it is replaced with new. Thank you. Kind regards,
The basement is humid and is smelling musty, the walls are flaking in one of the rooms. In winter, cold air seeps through into the ground floor because of the wooden flooring and the spacing between the floor boards. I want a cost effective, economical and durable solution like a fibre seal for walls and underflooring.
I have a flat concrete slab roof. I need to replace the current torch on as it is leaking when it rains heavily and causing damp through out the building. The roof portion that needs sealing is over sqm, but I don't know the exact number off hand. I will need to go there later or tomorrow and walk off the measurement. I would like this sooner rather than later, but am a little flexible. I attempted a short term fix as I wanted to build on the roof, but it looks like I will have to wait on that now and just repair the roof. See attached pictures.
Repairs of aged/damaged water proofing on small sections of the roof showing signs of water damage and cracks. Cleaning of existing waterproofing membranes on the rest of the roof and replacing damaged pieces with overcoat and torching. Application of 2x overcoat matching the existing colour of the house.
Hi I would like a square meter rate for a torch on waterproof. There is existing torch on which is 20 years old, on a flat concrete roof. the square meters is sq/m. I would like a price first so we can see if we can afford it. It's a concrete roof . I am not there this next week, and we working on repairs on our house ,so we can extend our bond. Just need a more or less price. Then when I am back you can come to give me a accurate quote and help with the service.
The roof was recently painted and the winter has damaged some of the roof sheets. The roof is leaking in 3 areas. I would like the roof to be checked and any issues sorted. I have an old roof. The builder has advised me it is either asbestos or fibre cement. I have some water proofing that needs to be done.
sqaure meters IBR Flat roof, starting to leak at parepit Require full waterproofing solution Ideally liquid rubber solution The roof has been waterproofed previously with torch-on waterproofing but that is not lasting so I would prefer someone who specialises in liquid rubber waterproofing solutions.