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Garage Roof Felt
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Felted garage roof last year . Need to cover tacks as rain getting through . Is there any waterproof paint we could put over tacks ? thanks in advance if anyone can give advice.
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For more on marking an answer as the "Best Answer", please visit our FAQ.First thought: Check out Isoflex Liquid Rubber, widely available at DIY type shops, works very well. If there is any risk of there being dust on the substrate then cleaning that off is advisable but no serious need to worry about hidden dampness as this stuff actually is very slightly heavier than water and thus displaces it to a significant degree.
If it is a flat roof and the felt has only been tacked and not laid on a hot bitumen layer, any rain that is pooling will be getting under the laps and is probably dripping or appearing where the tacks are. I doubt that the tacks themselves are causing the problem unless they have penetrated right through the boards under the felt. Any tacks used should be of a length that grips the felt but not be long enough to go right through the boards.