Start by laying asphalt felt or other underlayment over the roof.
How to lay a roofing felt.
This video shows a typical flat roof replacement carried out by argyle roofing based in london uk.
The roofing felt should be applied in layers that overlap.
Tack it in place at the corner with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof.
Install new flashing metal.
Cut drip edge flashing at an angle at the corner press it lightly against the eave end not too hard or you will misshape it and drive a nail near the end.
How to install roofing felt prep work.
Use a chalkline or align it by eye to make sure it is straight then drive roofing nails every foot or so to fasten it to the sheathing.
Make sure it stays flat.
Next continue to lay your felt in strips moving up your roof making sure it lays flat.
Tack the felt onto the initial rolling spot using a tack gun.
Start rolling the first layer of felt out from the bottom of one side of the roof.
Ideally the roof should be done when there is a forecast for several days without a lot.
Return to the side that you began rolling from and.
Begin at the bottom right or.
Using your staple gun secure the felt to the roof.
How to lay felt on a flat roof.
Step 2 placing the felt.
If you live in an area with inclement weather you should consider using a special ice and water protector.
Overlap each row at least 3 to 4 inches.
Make sure the horizontal edges of your felt overlap each other by about 3 inches.
Step 1 prep work.
To lay your felt over obstacles like vent pipes cut a slit in the felt and place the slit over the pipe.
Continue pulling the felt tight.
Then rolling the felt lengthwise move it across the surface of the roof shed.
You will be looking for any decking that has rotted or bowed.
Check to ensure the roof is in good enough condition to walk over.
You will need to begin at the very bottom of one side of the roof.
Start at the bottom of the roofline and work.
Start the roof felt at one bottom corner of the roof.
Beginning with the removal of the old roofing felt this.