A double garage flat roof will take a day if you only replace the felt but with the decking too allow a day and a half.
How to felt a flat roof on a garage.
If you are thinking about refelting a roof or replacing a layer of felt take care that you use the appropriate type of roof felt and adhesive.
Check to ensure the roof is in good enough condition to walk over.
Here are simple steps to get you started.
Make sure the roof is clean dry and that all nail heads are flush with the deck.
Felt roofing is a really common product used on flat roof coverings such as garages yard sheds as well as on extensions.
Light weight shed roofing felt is not suitable for flat roof construction.
Removing and replacing the decking and you can expect the work to take around 7 or 8 hours.
The underlying deck must be constructed of moisture tolerant materials such as 18mm wbp plywood or suitable chipboard stirling board on treated timber joists.
Step 1 prep work.
Felt is laid on a flat roof to help keep the roofing system waterproof.
This video shows a typical flat roof replacement carried out by argyle roofing based in london uk.
Laying down felt on a flat roof is an easy and effective way to improve the strength and durability of an outdoor structure like a garage or shed.
While laying felt is not an easy job it can be done by anyone who has the patience to deal with it.
Conclusions on felting a flat roof.