Gutter Installation

Measure the length of each section of the roof where gutters will be installed. Using a chalk line, mark a straight line along the fascia board or rafter tails to indicate the top edge of the gutter. Plan the placement of downspouts, typically at the ends of gutter runs or at corners, ensuring they align with existing drain pipes or splash block locations. Calculate the required slope for the gutters, generally a 1/4 inch drop for every 10 feet of gutter run, towards the downspout locations. Mark the high and low points for each gutter section.

Position the gutter hangers according to the marked slope, typically every 24 to 32 inches along the fascia board. The hangers should be aligned with the chalk lines or pencil marks indicating the top of the gutter. For seamless gutters, hangers are usually installed inside the gutter channel. For sectional gutters, they are typically screwed through the back of the gutter into the mounting surface. Ensure the hangers are securely fastened to provide adequate support for the gutter system, especially in areas with heavy rainfall or snow.

Measure and mark the gutter sections to fit the lengths determined in the layout phase. Use a hacksaw, tin snips, or a specialized gutter cutting tool to make clean cuts. For sectional gutters, attach inside or outside miters for corners and end caps for the ends of the runs. Apply a generous bead of gutter sealant to the connecting surfaces of the sections and any joints. Slide the sections together firmly, ensuring the sealant creates a watertight bond. For seamless gutters, cut the required length and attach the end caps.

Carefully lift the cut and assembled gutter sections and place them into the gutter hangers. Ensure the top edge of the gutter aligns with the chalk line or the intended high point. For sectional gutters, secure them to the hangers using screws or clips as per the manufacturer's instructions. If using downspout outlets, ensure they are correctly positioned and sealed. Check that the slope is maintained towards the downspout locations.

Connect the first downspout elbow to the outlet on the gutter. Add subsequent downspout sections, using elbows to navigate around soffits or other obstructions. Ensure each section fits snugly into the one below it. Use downspout brackets to secure the downspout to the exterior wall of the house every 6 to 10 feet, allowing for expansion and contraction. The bottom of the downspout should direct water away from the foundation, either into a splash block, underground drainage system, or to a suitable drainage area.

Apply a continuous bead of high-quality, exterior-grade gutter sealant to all areas where gutter sections connect, end caps are attached, and downspouts join the gutter outlets. Also, seal any joints between downspout sections if necessary. Smooth the sealant with a putty knife or gloved finger to create a clean, watertight seal. Allow the sealant to cure completely according to the manufacturer's instructions before exposing the gutters to heavy rain.

Using a garden hose, run water into the highest point of each gutter section. Observe the entire system for any leaks at seams, joints, or connections. Check that water flows smoothly towards the downspouts and does not pool in any areas. Ensure the downspouts carry the water effectively away from the foundation without overflow or backup. Make any necessary adjustments to the slope or re-seal any identified leaks.