Joining Plastic Gutter Sections: The Ultimate Guide

how to join plastic gutter sections

Gutters are essential for protecting your home from water damage and improving its appearance. One of the most common issues with gutters is leaking, which usually occurs due to poorly joined pipes. Therefore, it is crucial to ensure that gutter sections are correctly connected during installation or repair. Joining plastic gutter sections is generally a straightforward process and can be achieved using joint or union brackets, which create a watertight seal between the gutter lengths. These brackets are widely available, inexpensive, and come in various styles and profiles to suit different property types and requirements. When joining plastic gutter sections, it is recommended to follow safety guidelines and consider seeking professional assistance if needed.

Characteristics and their values for joining plastic gutter sections

Characteristics Values
Installation Plastic guttering is lightweight, low maintenance, and easy to install.
Safety Working at height is hazardous, so it is recommended to appoint a professional tradesperson.
Tools Joint or union brackets, gutter sealant, silicone spray lubricant, hacksaw, tin snips, pop rivets, sheet metal screws, silicone caulk, and gutter joiner.
Techniques Overlap gutter sections, use gutter sealant, connect with pop rivets or screws, and clean seams with rubbing alcohol.
Types of Gutters Vinyl and metal gutters require different joining techniques.

shunpoly

Using joint or union brackets

Joining plastic gutter sections is a straightforward process that can be achieved using joint or union brackets. These brackets are a type of wide support clip that connects two lengths of gutter together. They are widely available, inexpensive, and easy to install, making them a convenient option for joining plastic gutters. Here's a step-by-step guide on how to use joint or union brackets to join plastic gutter sections:

Prepare the Gutter Sections

Before beginning the installation, it is important to measure and cut the gutter sections to the appropriate length. Allow for a slight overlap of 3 to 4 inches at the ends of each gutter piece to facilitate joining. Use a fine-toothed hacksaw or tin snips to cut the pieces, and plan to have the factory-cut edges on the outer edges for a smoother appearance. Assemble the gutter pieces on the ground and ensure that the top edge of each overlapping piece is pointed in the direction of water flow.

Mark the Installation Points

Determine the placement of the joint or union brackets by marking the installation points on the wall or fascia capping board. Account for each bracket when taking measurements, ensuring that the first union bracket is positioned no further than 150mm away from the end of the run. Calculate the total number of brackets needed and mark the corresponding number of points where they need to be fixed, depending on the length of your gutter.

Install the Brackets

Line up the first bracket against the marked point on the wall or fascia capping board. Use the appropriately sized screws to secure the bracket in place, ensuring that you use all the available screw holes to stabilize the bracket. Refer to the manufacturer's recommendations for the specific type of screws to be used. Repeat this process for each bracket until you reach the end of the run.

Connect the Gutter Sections

With the brackets in place, you can now fit the gutter sections into the connectors. Gently lower the first gutter section into the bracket, ensuring that the end is properly aligned with the insertion depth marked on the inside of the joint bracket. Apply light pressure until the gutter snaps into place underneath the lugs of the bracket. Repeat this process for each subsequent gutter section, connecting them to the corresponding brackets.

Seal the Joints (Optional)

To ensure a watertight seal at the joints, you can use gutter sealant or plastic cement. Clean the seam edges and the interior of the gutter joiner pieces with rubbing alcohol. Spread the sealant or plastic cement on the overlapping areas of the gutter sections and the inside of the gutter joiner pieces. Snap the joiners firmly into place, creating a watertight connection between the gutter sections.

It is recommended to enlist the help of a professional tradesperson or seek guidance if you are unsure about any aspect of the installation process. Working at height can be hazardous, and a professional will be aware of the necessary safety precautions to take.

shunpoly

Overlapping gutter pieces

Joining plastic gutter sections is a straightforward process that can be easily achieved using joint or union brackets, which are widely available and inexpensive. These brackets are a type of clip that connects two lengths of gutter. Each clip usually includes rubber gaskets (seals) that create a watertight seal to avoid rainwater leaks.

When overlapping gutter pieces, it is important to ensure that the pieces are properly measured and cut to allow for overlapping edges. You should add an extra 3 to 4 inches after roof measurements to each gutter piece for the overlap. Use a hacksaw or tin snips to cut the pieces, and ensure that the factory-cut edges are on the outer edges for a smooth appearance. On the ground, assemble the gutter pieces and overlap the sections by 3 to 4 inches, with the top edge of each overlapping piece pointed in the direction of water flow.

Apply a generous amount of gutter sealant to the overlapping areas. You can also use plastic cement for this step. Connect the overlapping areas along the sides of the gutters using pop rivets or sheet metal screws, ensuring that you do not drill holes in the bottom of the gutter as this could cause leaks. Allow the gutter sealant to dry before proceeding further.

Finally, attach the gutter to the fascia with a slope that directs water toward the downspout. It is recommended to appoint a professional tradesperson or seek helping hands for installing a gutter system, as working at height can be hazardous.

shunpoly

Applying sealants or cement

Joining plastic gutter sections is a straightforward process, but it's important to ensure a watertight seal to prevent leaks. Here are the steps for applying sealants or cement when joining plastic gutter sections:

Clean the Gutter Sections and Joiner Pieces

Before applying any sealant or cement, it's crucial to clean the gutter sections and joiner pieces thoroughly. Use a rag dampened with rubbing alcohol to wipe down the seam edges and the interior of the gutter joiner pieces. This step ensures that the sealant or cement will adhere properly to the surfaces.

Apply Sealant or Plastic Cement

Spread a generous amount of gutter sealant or plastic cement on the inside of the gutter joiner pieces and the overlapping edges of the gutter sections. Gutter sealant or plastic cement creates a watertight seal, preventing leaks. Ensure you cover all relevant areas, and don't be afraid to be generous with the sealant or cement.

Position and Snap the Joiner Pieces

Carefully position the joiner pieces so that the seam is as close to the centre as possible. Then, firmly snap each joiner into place. This step connects the gutter sections and secures them together. The snap-fitting design of vinyl or PVC gutters makes this process relatively easy for DIY enthusiasts.

Allow the Sealant or Cement to Dry

After joining the sections, let the sealant or cement dry completely. Follow the manufacturer's instructions for drying time, as it may vary depending on the product and environmental conditions. Do not disturb or stress the joined sections during this drying period to ensure the sealant or cement sets properly.

Repeat for Additional Seams

If there are multiple seams in your gutter installation, repeat the above steps for each seam. Clean, apply sealant or cement, position, and snap each joiner into place, ensuring a watertight seal at every connection. Remember to allow sufficient drying time for each seam before continuing with the installation.

By following these steps and allowing adequate drying time, you can effectively join plastic gutter sections using sealants or cement, creating a durable and leak-proof gutter system.

shunpoly

Using rivets or screws

Joining plastic gutter sections with rivets or screws is a straightforward process, but it's important to take the necessary precautions and follow the correct steps for a secure and long-lasting installation. Here's a detailed guide on how to do it:

Prepare the Gutter Sections:

Before joining the gutter sections, it's essential to measure and cut them to the required length. Measure the total run of the gutter length needed, adding a slight overlap for the edges when joining the pieces together. Mark the cutting points accordingly. You can use a fine-toothed hacksaw to cut the gutter sections to size. Once cut, clean the seams of the gutter sections with a rag dampened with rubbing alcohol to ensure a clean surface for joining.

Use Rivets:

Rivets are an effective way to secure gutter sections together. Aluminum pop rivets are commonly used for this purpose and provide long-lasting joints. When using rivets, ensure you have the appropriate size and type of rivets, such as aluminum pop rivets or stainless steel pop rivets. Overlap the gutter sections by 1 to 2 inches and secure them together using the rivets along the sides of the joined sections. Avoid placing rivets at the bottom of the gutter, as this could cause leaks. After riveting, apply a liberal amount of silicone sealant or gutter sealant to the joints. Allow the sealant to dry thoroughly before proceeding.

Use Screws:

Screws are another option for joining plastic gutter sections. Union brackets, also known as gutter joiners or couplers, are widely available and inexpensive. These brackets have rubber gaskets that create a watertight seal. When using screws, ensure you have the right type and size of screws recommended by the manufacturer. Mark the points on the wall or fascia capping board where the brackets will be attached. Screw the brackets into position using a drill or screwdriver, ensuring you use all the available screw holes to stabilize the bracket. Then, fit the gutter sections into the connectors of the brackets by gently lowering them into place and applying light pressure until they snap securely underneath the lugs of the brackets. Repeat this process for each bracket until you reach the end of the gutter run.

Final Steps:

Once all the gutter sections are joined and secured, it's important to check for any gaps or leaks. Some manufacturers recommend applying silicone spray lubricant to the gutter joint brackets before attaching them to the plastic gutters to prevent leaks. Additionally, brand-specific guidelines may require an expansion gap due to thermal expansion and contraction, which can affect the system's performance. Always refer to the manufacturer's instructions and guidelines for the best results.

shunpoly

Hiring a professional

Joining plastic gutter sections is a straightforward process, but it can be hazardous work, and it may be best to hire a professional. Professionals will have the right tools and expertise to ensure the job is done safely and securely.

Firstly, it is recommended to appoint a licensed roofing professional to carry out a gutter system installation. Working at height can be dangerous, and a professional will have the right safety equipment and training.

Secondly, a professional will be able to advise on the best gutter system for your property. They will take into account the style of your property and any specific requirements, such as the amount of rainfall you typically experience. They will also be able to source high-quality materials at a good price, passing on savings to you.

Thirdly, a professional will be able to ensure the gutter system is installed securely and correctly. They will follow the manufacturer's instructions and take into account any specific requirements, such as the need for an expansion gap. They will also be able to advise on any additional products, such as silicone spray lubricant, which can be applied to the gutter joints to improve the seal.

Finally, a professional will be able to offer a guarantee or warranty on the work, so you can be confident that the job has been done to a high standard. They will also be able to offer advice on maintenance and any future repairs that may be needed.

Frequently asked questions

The two main types of gutters are vinyl and metal.

You will need joint or union brackets, a hacksaw or tin snips, gutter sealant, and pop rivets or sheet metal screws.

First, cut the gutter pieces with a hacksaw or tin snips, allowing for 3 to 4 inches of overlap. Then, assemble the gutter pieces on the ground and overlap the sections. Ensure that the top edge of each overlapping piece is pointed in the direction of water flow. Next, spread gutter sealant on the overlapping areas and connect them with pop rivets or sheet metal screws. Finally, attach the gutter to the fascia with a slope that directs water towards the downspout.

Yes, installing plastic gutter sections is a fairly simple task that can be done by homeowners. However, it is recommended to appoint a professional tradesperson, as working at height can be hazardous.

To prevent leaks, ensure that the ends of all gutter pipes are properly connected. You can also use joint brackets with rubber gaskets to create a watertight seal between the gutter lengths. Additionally, you can apply silicone spray lubricant to the gutter joint brackets before attaching them.

Written by
Reviewed by

Explore related products

Share this post
Print
Did this article help you?

Leave a comment