The reason why 30 underlayment is inferior to g40 is because 30 is made of only organic materials.
How to felt tile a roof.
Starting at the bottom run the sarking felt along the roof and align it so that the lower edge extends beyond the fascia roughly to the middle of the gutter.
A project of this size will take a great deal of planning and preparation well before the actual tile installation is underway.
Stripping the roof start at the top and strip and denail covering with felt thus keeping the rain from affecting the inside get a hammer tacker fix 3or4 in the centre of the felt then that allows you to roll it out yourself once you have done that install counter batten if it has a sarking board or if you have open rafter then measure out the.
Roof felt 2 nail 2 layers tu 35 or malarkey modified sheets.
Roofing felt comes in rolls that feature pre marked lines 2 to 3 inches from the top and bottom edges.
Congratulate yourself on a super job.
1 re felt with 2 layers of sbs 40 lb.
Installing a tile roof can be a difficult and laborious process.
Cut each strip into 3 individual tiles as shown.
Make sure the tiles are facing the correct way for the prevailing wind.
Bend the shingle over the ridge and nail down firmly.
I have two roof estimates for underlayment replacement of the entire tile roof which at this time has the builder s original paper from 1989 when i purchased the house new.
This is where our industry in based and.
This underlayment is far superior to a 30 pound felt and is warranted by the manufacturer for up to 20 years if installed by a tile roofing institute certified contractor.
Start at the bottom of one side of the roof at the right or left edge.
Chipmunk log cabins these felt shingles or ones similar are used in the uk on garden buildings and log cabins etc.
Continue along the entire ridge.
Beginning at one end nail the felt to the rafters at the mid point of the width of the rafter and approximately 250mm in from the fascia on every other rafter.
Two different underlayment suggestions very confusing.