Flat Roof Detail Section With Hvac

Airtightness page 7 very good levels of airtightness are required for all flat roof constructions.

Flat roof detail section with hvac.

Installing a flat roof pvc single ply roofing membrane in this case can be a pretty straight forward process or a very confusing endeavor because each component must be installed in a particular order. You d start at the bottom edge with a 1 2 inch to 1 1 2 inch piece and then at the up slope side place a sheet of 1 inch flat foam and layer another piece of the tapered foam on top of it. Banding is typically used to seal soil vent pipes on single ply roofs such as fdt rhepanol pib and involves wrapping an unreinforced membrane around the pipe to a minimum height of 150mm. 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.

Typical methods include banding pitch pockets and cover flashings. This detail illustrates a method of flashing a ventilator on a sloped roof. Large flashings are formed with a hook edge on the top and sides and cleated to the sheathing at 12 o c. Firestone has developed cad drawings of its epdm installation details to assist roofing professionals with the specification of firestone epdm roofing systems.

The base flashing extends onto the roof a minimum of 4 and is soldered to the ventilator. Isometric section through sun terrace hospital in waiblingen d 1928 richard dăścker roof edge detail according to the frankfurt standard for small dwellings 1927 proposal for roof edge. Of course you don t need to live in a modern house to deal with a flat roof. Hold your cursor over the file name to view when a drawing was last updated.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. The detail drawings are grouped by detail type and can be downloaded below in dwg or pdf format. Otherwise the system may not work the way it should. A blower door test is strongly recommended.

Of course there is an installation spec manual from ib roofs which we always keep handy and actually had to use once or twice. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. Location page 5 factors such as the amount of sunshine temperature surrounding buildings or wind affect a flat roof and need to be considered. The lower edge is hemmed for stiffness.

Factors that affect a flat roof construction. What typical detailing methods are used to seal flat roof penetrations. A flat roof usually consists of the following. A roof is considered to be flat when it is of a slope of 1 5o to the horizontal.

Dimensions weight component details cross braces supply return opening layout dimensions and notes which are unique to each unit. If for instance you wanted to add 1 4 inch per foot to a dead flat roof you would get foam that ranges from 1 2 inch thick to 1 1 2 inches thick over 4 feet.