Hi all, seeking for some opinions here before I pull the trigger.

Some of you might remember my old thread "Old house to dream house".

My house has been facing leaking issues for years and I recently stumbled upon this recommendation.

From what I gather, they extensively use torch on membrane to fix all issues (whether it is cement, steel roof, roof tiles, etc). I've heard of torch on membrane and its application on cement slabs only usually.

I've actually contacted them for a quotation, which came to over RM20k. Basically almost "wrapping" all four corners of my roof + rolling down over required spots. The logic makes sense, i.e. they don't just patch the problematic area, but always start from the top of where the water would flow.

Here's the link to their FB page. They got tons of tiktok videos too.
FB page

Example of the concept (mine is a metal deck roof as well):


After almost 7 years of my massive renovation (meant to be my dream home), it has been anything but. I've done countless fixes over the years, but as it rains harder and harder each year, old spots are reopening and new spots are forming.

I've accepted this partially due to bad workmanship, but alarmingly a design flaw on the roof which I've had limited ability to supervise during construction 7 years ago.

I am hoping this is my "final" trigger before I pull it, and hope to finally put my mental torture to an end.

Do share your experience on this company, if you have engaged them before & this method. Happy to hear your thoughts, perhaps in 7 years there are new technologies and methods I'm not aware of.

Thanks sifus.

This post has been edited by phoenixxx: Nov 13 2023, 10:21 PM

Oh, leaking from a metal deck? mind sharing the design flaw? I always thought metal decks are more leak resistant.

Sorry I have no experience with torch on.

I used this Wai Hong brothers before, their workmanship is good and professional but their price is expensive.

wrap a few side walls need 20k? That's rip off. The example you shown max 5k. And don't listen for to any application on metal panel, confirm will detach. For that type of money might as well top up a little rebuild the roof. I suspect you have a roof with running off flaw and no control flow/drain.

You can use other contractors if expensive. Torch on membrane is not difficult, you just need the membrane and torch and heat it up only. Any bangla with the right equipment can also do it

If for my own properties, I won't use this method. This method is a good method for lazy contractors only. But if you noob and want worry free, then go ahead. When the membrane deteriorate in the future, you going to cry mother and father even worse.

Torch membrane is not something I would install.

When the membrane fails, you will have a very hard time removing it and cleaning off the glue residue.

Thanks for all the feedback.
Dilemma now. Roof replacement is not an option for me, due to proximity to neighbours. Hmm.

The final quote is RM26k.

This post has been edited by phoenixxx: Nov 15 2023, 10:55 PM

Metal deck roof leaking is usually come from,
1. The slant degree level are too flat. Every metal roof panel profile have their own specification for the slope degree, and some of the product are overdue with Malaysia rainfall reecord from 20/30 years ago. Now rain a lot heavy already, so make sure the roof slope degree is sufficient in accordance to the supplier specs.
2. The joint details at the edge (top and side). Metal roof join must be address and detail properly, usually is these joint got incorrect installation or damaged.

Not recommend to just torch-membrane or any kind of over the top surface solution. No matter how long warranty they give you, it will fail sometime down the road. Becasue the root cause is not address, water will stay there and become a probelm again in the future.

Have to ask contracter to come and see and check properly. even if you want to membrane it off, need to fix the root cause first.

I guess it all depends on if you can find the root cause and have the right contractor to fix it?!

My case was also similar to yours, but mine is a roof tiles. Last 7 years was hell, we cant even leave the house for vacation in peace. It pretty much leaks at multiple places, and the span of 7 years, easily would have called 7-8 contractor to fix and cash spent! was just wasted.

Finally found the contractor that mentioned above, via a relative of mine, who did his house 1 year ago.

Last 2 months, expecially during this rainy period, was/is the most peaceful time of our life!

Mine cost about 15k.

Thanks for sharing your experience. Really appreciate it.

The picture you shown is similar to what they will be doing.

Just a bit hesitant on the huge price gap. Mine is also a link house, not a bungalow or anything.

I wonder if I am being overcharged or if there is some mistake in the calculations (it's purely done using a drone and the measurements are drawn based on pictures taken by the drone).

I also did use this company. Mine is corner and around and cost around 20k when I did it in 2019.

I never ask for quotation from other companies to see whether it is considered expensive. But so far so good, at least no leakage since then.

I make a decision quickly that time because they are professional (the quotation included detail breakdown) and my house is kinda in emergency situation. When the rain comes, my house like have leakage like waterfall situation (and it is a new construction).

So I guess, if it is not really emergency, guess you can survey a few more before decide.