Roofing underlayment or felt is usually required for the ul fire rating to apply since shingles are usually tested with underlayment.
Sand roofing felt underlay.
Types of roofing felt traditional bitumen sarking felt is the cheapest option for roofing underlay and is readily available.
Add roof pro universal sand underlay l 10m w 1m to compare list max 4 add to basket.
It is slightly different from flat roofing felt as it includes a strong woven base but it can become brittle over time and can rot into the guttering where it has been exposed to sunlight.
This felt will help prevent damage to your roof from wind driven rain and water from other sources.
5 38 per m2.
Lay it over metal flashing edges around vents and pipes.
Add an extra layer of protection between your shingles and roof deck with this 30 216 sq.
Felt roof deck protection.
Item 656632 model 0903000.
Roof pro torch on sand underlay l 8m w 1m product code 5060382231480.
Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.
Fit felt around vent pipes or other protrusions by cutting it with a utility knife and fastening around the bottom of the vent.