Felt Garage Roof Leaking

Joinerjohn nov 21 2009.

Felt garage roof leaking.

I can t afford a professional fix and i m utterly useless at diy so advice appreciated. Locating a flat roof leak. While finding a leak in a flat roof is easier than on a steep sloped shingled roof leaks can still be deceiving. The surface may also suffer from dips or hollows.

I d just buy a roll of high performance felt and some tacks and do it yourself felt is 8m long in torch on cost of marerials about 50 pounds cut 3 strips out of roll at 2 4 metre lay from lowest point of roof working upwards lap over front and back and sides 10 to 15 cm with 3 strips laps in middle will be about 300mm leave to stretch out then nails all laps down you can tack down overhanging. I think the water is getting in via a hole where a pin big screw goes through to hold that part of the roof on. Where water enters your interior space might not be exactly where the leak is because any water that penetrates a roofing membrane can travel for some distance until it finds a seam in the sub roof or sheathing and seeps inside. The existing felting on my garage roof is cracked and leaks.

Edging can also lift or old flashings against the wall could leak. The garage is a regular up and over with room for one car. There may be a hole in the felt at some point or the wind has been strong enough to drive the water up above the overlap join on the felt. Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.

Felt flat roof repair old pour and roll felt roofing can crack get puncture holes usually from impact or the felt could split. To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists. Best to monitor the situation if it gets any worse then call a pro roofer in. Tj it s probably the wind that has been driving the rain up under the roof tiles.

This will cost around 460 510 made up of.