Perforated underlay a 2mm underlay layer then 4 5mm felt.
Flat roof torch on felt.
Here are simple steps to get you started.
Flat roofs are more prone to pooling water and piling snow as well as built up debris.
Check to ensure the roof is in good enough condition to walk over.
This video walks you through the steps in installing and torching felt drips on a roof and making sure it sticks well to avoid water getting underneath.
Make sure the sheets lay flat against the roof.
If you know which way your roof slopes roll the sheets in the direction of the slope.
Disadvantages of a flat roof.
Modern torch on felt roof.
There are many different types of flat roofing systems available each one with their own pros and cons.
Felt is laid on a flat roof to help keep the roofing system waterproof.
Despite it not being the stronger of the two felt roofing is still a reliable choice.
Made from bitumen which is widely known to have fantastic waterproofing properties torch on felt is typically layered to ensure properties are completely protected against the elements.
Torch on felt is generally used in combination with fibreglass underlay and plywood to create reliable durable and weathertight flat roofs.
Push the sheets as close together as possible.
Step 1 prep work.
Roofing felt is one of the oldest available options and advances made in the past decade or so have begun to move more towards the torch on approach.
Hi i will try to offer the best advice i can based on your description.
Torch on roofing is a flat roof system which means it must be highly water resistant and durable.
The correct process for a built up torch on felt system should comprise of 3 layers one base layer manually fixed to the roof usually nailed followed by one torch on underlay with the top finished with a torch on mineral cap layer.
Torch on felt roofing simply describes the method in which the material is applied.
No flat roof is 100 level but the slope isn t always noticeable.
However even with the most durable flat roof system you have to make sure to maintain and inspect your flat roof regularly.
At roofing superstore our choice of flat roof materials includes everything you need to create a long lasting weather proof flat roof that performs and looks good too.
While laying felt is not an easy job it can be done by anyone who has the patience to deal with it.
Typical installations use a three layer system.