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Initial installation – Enviro Ascot 50-029 User Manual

Page 18

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Initial Installation

QUALIFIED INSTALLERS ONLY

Vertical

Termination

Storm Collar

Flashing

Roofing nails

Elbow Strap

STEP 6. Once the pipe sections have been joined, and run up through the hole in the roof, slip an elbow

strap over the exposed sections, bend the support straps outwards, and push the elbow strap

down to the roof level, as shown in Figure 21. Tighten the clamp around the pipe section. Use

a level to make sure the pipe is truly vertical. With roofing nails, secure the support straps to

the roof. Seal the nails holes heads with non-hardening mastic. Trim the excess length of the

support straps that extend out beyond the edge of the flashing.

STEP 7. Slip the flashing over the pipe section protruding through the roof. Secure the base of the

flashing to the roof with roofing nails. Use a non-hardening sealant between the uphill edge of

Figure 21: Vertical Vent Termination Installation.

Table 3: Minimum ‘H’ for Figure 22.

Roof Pitch

Minimum Height

Feet

Meters

Flat to 7/8

1

0.3

Over 7/12 to 8/12

1.5

0.46

Over 8/12 to 9/12

2

0.61

Over 9/12 to 10/12

2.5

0.76

Over 10/12 to 11/12

3.25

0.99

Over 11/12 to 12/12

4

1.22

Over 12/12 to 14/12

5

1.52

Over 14/12 to 16/12

6

1.83

Over 16/12 to 18/12

7

2.13

Over 18/12 to 20/12

7.5

2.29

Over 20/12 to 21/12

8

2.44

Figure 22: Height of Vertical Termination;

Reference Table 3.

the flashing and the roof. Insure the roofing

material overlaps the top edge of the flashing

as shown in Figure 21. Verify that you have at

least the minimum clearance to combustibles

at the roof line.

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