JeffersLos Posted February 15 Share Posted February 15 We're helping to fix up and renovate our old neighbor's house. The roof is leaking in places as the tiles (3mm) are old, and from underneath can see indirect light where they meet. Can see dark water marks on the wooden beams, but no real damage to the wood. We recommended having it all retiled, but they're old and don't want to spend the money. Other options are to try to seal it with either sealing tape or a paint sealer. TOA have this roof seal paint. https://www.lazada.co.th/products/toa-201-roofseal-1-4-roof-seal-i2830388546-s10325372987.html? 1. How good is it at sealing up old roof tiles that have small leaks coming through where they meet? 2. They are sold in 4Kg tubs. On average how many sqm would a 4Kg tub cover? The roof is probably around 100sqm. TIA. Link to comment Share on other sites More sharing options...
JeffersLos Posted February 15 Author Share Posted February 15 (edited) Another option is for them to use a roof seal tape along where the tiles join. https://www.lazada.co.th/products/toa-toa-smart-tapeseal-bm-i2732672716-s9905914092.html? https://www.lazada.co.th/products/-i706858547-s1356364356.html? Thoughts? Edited February 15 by JeffersLos Link to comment Share on other sites More sharing options...
sometimewoodworker Posted February 15 Share Posted February 15 (edited) 14 minutes ago, JeffersLos said: We're helping to fix up and renovate our old neighbor's house. The roof is leaking in places as the tiles (3mm) are old, and from underneath can see indirect light where they meet. Can see dark water marks on the wooden beams, but no real damage to the wood. We recommended having it all retiled, but they're old and don't want to spend the money. Other options are to try to seal it with either sealing tape or a paint sealer. TOA have this roof seal paint. https://www.lazada.co.th/products/toa-201-roofseal-1-4-roof-seal-i2830388546-s10325372987.html? 1. How good is it at sealing up old roof tiles that have small leaks coming through where they meet? 2. They are sold in 4Kg tubs. On average how many sqm would a 4Kg tub cover? The roof is probably around 100sqm. TIA. Use the TOA calculator https://www.toagroup.com/en/product/product-calculators/construction-chemicals?slug=toa-pu-waterproof&wide=25&long=4 Edited February 15 by sometimewoodworker 1 Link to comment Share on other sites More sharing options...
JeffersLos Posted February 15 Author Share Posted February 15 3 minutes ago, sometimewoodworker said: Use the TOA calculator https://www.toagroup.com/en/product/product-calculators/construction-chemicals?slug=toa-pu-waterproof&wide=25&long=4 Thanks. For 100sqm they calculate it as needing 200kg of roof seal paint. 50 tubs for 32000THB may be a bit much for them. Link to comment Share on other sites More sharing options...
JeffersLos Posted February 15 Author Share Posted February 15 The main leak seems to be from a part of the ridge, would cementing the ridge tiles also be an option for them? Link to comment Share on other sites More sharing options...
Dante99 Posted February 15 Share Posted February 15 4 hours ago, JeffersLos said: For 100sqm they calculate it as needing 200kg of roof seal paint. You might try again. I used the calculator and got half that. Same result with both products identified as roof sealer. Link to comment Share on other sites More sharing options...
Dante99 Posted February 15 Share Posted February 15 Look carefully at that product, I think it is for flat concrete roofs not tiles. 1 Link to comment Share on other sites More sharing options...
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