Gutters protect your home from heavy rain and snowfall by ensuring that rainwater is evacuated away from the foundations. Your home is therefore drier with fewer humidity problems, and the ground drains better. PVC guttering has the advantage of being durable, affordable and easy to install. No specialized tools are required for installation – a hammer and screwdriver are all you need.
PVC gutters come in different profiles, most often G shaped (half round) or U shaped (flat bottomed). This guide shows you how to install a gutter system step by step.
Draw a plan of your house to compile a list of all the parts needed.
Determine the length of gutter required as well as the number and length of downspouts. If your house already has gutters, you can use the dimensions of the existing system.
Gutters and downspouts are sold in 10' sections. The mounting brackets are installed every 16" - 24” and the downspout clips every 3'.
Gutter installation involves working at height which poses a risk of falling.
PVC is easily cut with a hacksaw. Use a fine-tooth blade and a mitre box for straight, clean cuts. File the edges smooth. Clean, straight cuts will help ensure watertight joints.
1.1 If the roof edge is longer than 35', the highest point of the gutter should be at the centre, with a channel on either side of this central point sloping down towards each end.
If the roof edge is under 35' long, the gutter should slope down in one direction only.
1.2 Use a plumb line to establish the location of the downspout(s).
One downspout should be installed for every 40' of gutter.
1.3 Drive a nail into the fascia board 7/8" below the roof edge to mark the highest point of the gutter (point A).
1.4 Create a guideline for the slope.
For efficient drainage, a slope of 1/8" for every 3' of gutter is recommended.
1.5 Drive a nail into the spot marking the lowest end of the gutter (point B).
1.6 Join point A and point B using a chalk line.
1.7 Stretch and snap the line against the edge of the roof so as to mark the slope of the new gutter.
2.1 Choose the most suitable type of gutter brackets for your roof.
2.2 Screw the highest hanger in place, following the chalk line.
2.3 Screw the lowest hanger in place on the chalk line.
2.4 Attach all the other hangers in between.
Hangers should be spaced every 16" to 24" to ensure adequate support. If the house is exposed to ice and heavy snowfall, space to 16".
2.5 Hangers should not be more than 8" from corners.
3.1 Lay out the horizontal components on the ground, without connecting them at this stage.
Keep the same configuration when you come to assemble them.
3.2 Cut the gutter sections to the required length using a hacksaw with fine-tooth blade and a mitre box.
3.3 File the edges smooth. Smooth, clean edges will help ensure watertight joints.
3.4 Determine where to place drop outlets (right, centre, left), joiners, elbows and end caps.
One drop outlet is required for every 40' of gutter.
3.5 Join the gutter parts either by gluing them with PVC cement or by clipping them together.
3.6 Insert the assembled sections into the gutter hangers.
Press down lightly to snap them in place.
The downspout parts (elbows, connectors, etc.) can be either glued with PVC cement or screwed together. However, it is advisable not to glue the elbow directly beneath the drop outlet, in case you need to dismantle the downspout at a later date.
4.1 With the downspout position already marked on the wall, place one of the elbows against the wall and measure the distance between it and the elbow under the drop outlet.
Important: the downspout must completely cover the sleeve of the drop outlet elbow and fit fully into the elbow on the wall.
4.2 Subtract 1/8" from your measurement and cut the piece of downspout to that length.
4.3 Attach the elbows to the downspout using ½" galvanized self-tapping screws.
4.4 Determine the length of the downspout assembly.
Measure from the top of the sleeve of the wall elbow to 6"-12" above the ground.
4.5 Attach with ½" galvanized self-tapping screws.
4.6 If more than one 10' section of downspout is required, join the two sections with a
4.7 Fit the top clip around the downspout.
It must be positioned under the first joint to prevent the assembly from slipping.
4.8 Screw in place with ½" galvanized self-tapping screws.
4.9 Slide the downspout onto the elbow attached to the wall.
4.10 Secure with ½" galvanized self-tapping screws.
4.11 Align the downspout with the drop outlet above.
4.12 Mark on the downspout the position of the other clips.
Attach a clip every 3'.
4.13 Screw the clips to the wall.
4.14 Insert the bottom of the downspout into the diverter attachment to enable water to drain away from the foundations.
This hinged attachment makes it possible to lift the downspout out of the way when mowing the lawn.
4.14 Insérer une longueur de descente à l’accessoire de déviation, afin d’éloigner l’eau des fondations.
Cet accessoire permet d’élever la descente et de l’écarter pour entretenir la pelouse.
4.15 Place a strainer at each downspout joint to prevent leaves from entering and blocking the pipe.
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