Double garage roof repair

[AP77]

My elderly Mum shares a double length and double width garage with her neighbour (approx 10m x 5m in total).

The roof is felted on top of OSB board (OSB3 I think) and no signs of any damp patches on the boards.

The roof is at least 30 years old. We have just noticed a few very small drips through the roof on the inside of the garage in couple of places which I presume is due to amount of rain recently.

The felt looks to be in good shape, no rips or tears as far as I can see, although the flat surface does not seem to have any grit on it, unlike the side gable stips which do have grit on it.

I am hoping to be able to fix this myself, I appreciate the roof is old but am looking to do a repair that may he good for another 5 years or so.

I see from this forum that Acrypol gets a lot of mentions and am wondering if this would be the best product to use. It looks like you just paint it on. I guess I would need quite a large quantity though due to the size of the roof.

Any advice greatly appreciated.

 

[DAZB]

Doing that kind of area in Acrypol would be very expensive so a cheaper option would be a bituminous paint or similar such as this :

Bitumen Roof Coating Paint for Roofs Waterproof All weather Roofing Compound 25L | eBay UK

Remove any loose chippings and carry out preparatory work as detailed above. It is of a brushable consistency. Carry out preparatory work. • Asphalt roofs. • Built-up felt roofs. ASPHALT ROOFS On asphalt roofs where blisters have occurred, these should be heated with a blowlamp until soft and...

www.ebay.co.uk

Other brands are available and a quick Google will probably get you a stockist near you.

 

[AP77]

Thank you, that is really helpful. This looks a much more viable product, especially as I think I may need 2 x 25 litre tins. I also see there are other similar style products so will Google using the same criteria.

 

[JohnD]

Bitiminous paint on a worn out roof is a temporary bodge.