How To Lay A Flat Roof

Open the epdm square vertically along the length of the roof.

How to lay a flat roof.

Flip the topmost piece of the epdm material downward across the length of the roof. Afterward flip the next topmost piece upward. The traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run. Estimate to pay from 120 including vat for this job.

For homes these three layers are used and for garages sheds etc. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. By placing three even layers of felt and taking great care that there is enough overlap and that any seams don t create a straight line you can ensure that your flat roof will be optimally.

Two layered felts are used. The best time to lay a felt roof using cold applied adhesive is when the weather is warm but this means that working on a flat roof can be exhausting work with the sun s heat and the heat. Step 1 prep work. For first time homeowners it s typical to hire a professional contractor who can complete the flat roof installation for you and offer a full warranty for their work.

Check to ensure the roof is in good enough condition to walk over. Full replacement or over boarding of a roof deck. Align the bottom so its parallel to the bottom length of the roof. Laying a felt roof is hard manual work which once started needs to be finished you cannot leave it halfway through to come back to in a couple of weeks.

Unless the flat roof is a new build you will be replacing an existing flat roof normally a felt roof such as built up bitumen or asphalt. As described earlier these substances are a contaminate to the glues used in epdm and the membrane itself with direct long term contact. While laying felt is not an easy job it can be done by anyone who has the patience to deal with it. Here are simple steps to get you started.

Creating a flat roof can be completed as either a diy weekend project or by a professional contractor. Lay down the square folded epdm material in the center of your flat roof. A gas torch is used to lay the felt on the flat roof. Much like torch down with a fibrous base nailed rather than stapled this roof material is laid out in lengths and has a self adhesive backing for securing it in place.

Laying down felt on a flat roof is an easy and effective way to improve the strength and durability of an outdoor structure like a garage or shed. The topmost cap sheet mineral finish will protect from harmful uv rays of the sun.