Once even a small section of roofing cement fails you ll have a leak.
How to apply flashing with a rolled roof.
How to install polymer bituminous flashing.
The metal flashing must overlap the material not the other way around.
This product is ideal for those parts of the roof that are connected to an extension or where the addition meets the fabric of the older building.
Apply a thin bead of silicone around the opening of the vent pipe area and lay the membrane in place.
Lay it from the bottom of the roof to the top ensuring 4 inches of overlap at each base line.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Ensure that you hammer the nails properly into the roof don t leave the nails sticking up above the layer.
Hammer nails into the rolled roofing to secure it.
Coat the flashing with a zinc based primer followed by two or more coats of spray on rust preventive metal paint.
Next place your vent flashing on top of the membrane.
Roof flashing helps protect your roof from the elements and aluminum roof flashing is a cost effective style that will work as well as other types of flashing without costing you as much.
You may want to paint the flashing to match the roof.
Water can accumulate in the roofing or flashing on a flat roof causing ponding that will eventually result in rotted underlayment and a roof leak.
Cut some membrane material to seal between the vent flashing and the roof and cut an opening for the vent.
Hammer the nails in at 10 inches 25 cm intervals across the roof.
This aluminum flashing protects the edges of the roof sheathing from water.
First use a stiff wire brush and solvent to clean the surface of any dirt debris or corrosion keep solvent away from asphalt shingles.
Make sure you use a strong hammer and 1 inch 2 5 cm roofing nails.
Bend the corner flashing tightly around the corner.
If you do not wish to form your own corner flashing you can buy pre bent pieces and cut them to size or use a piece of corrugated aluminum which is easier to bend.
Provide 6 inches of overlap under each side of the flashing.
Step flashing on roof peak.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Roof shingle over step flashing.
