Home is the dream object for everyone, and there is nothing important like home. When you’ve found your dream house which fits your housing budget, the desire to purchase it will be inevitable.
However, after the purchase is made, you might notice something on top needs an extra touch. A little renovation is ongoing, but you have no proper knowledge of joining two roofs with different pitches.
Read also : How to Install Drip Edge on a Metal Roof
Now, what to do? Searching for the answers on the net can be helpful. So, get ready to jot down the steps of fixing your roofs with different pitches.
How To Joining Two Roofs with Different Pitches
If you’re new to this, don’t worry. Here’s a guide to help you through the process, including how to prepare the area and measure the length of the joined area. The pitch itself is a ratio of the rise of the roof and the span of it. It is commonly shown as a fraction number like 5/12, 10/12, etc.
The higher the numerator is, then the steeper the roof will be. Well, here’s what you need for joining two roofs with different heights. Things you will need:
- Working gloves
- Measuring tape
- Permanent marker
- Circular saw
- Metal snips
- Metal screws
- 2-by-4 and 1-by-1 lumber
- Butyl caulking
- 12-inch aluminium flashing
- Shingle remover
- Roofing nails
- Metal snips
Read also: How to Build a Pitched Roof On a Pergola
Procedure for Joining Two Roofs
- First, identify the areas of the existing roof that you want to join. After putting on your gloves, remove the shingles and underlayments on both edges to a width of about 6-8 inches.
- Next, measure the length of the joined area and add 12 inches to this measurement for your flashing material. This extra length ensures adequate coverage for the joint.
- Using your metal snips, cut down the flashing after matching it with the measurement.
- Next, put the flashing between two roof pitches. This is where joining two pitched roofs together starts. Slide the flashing under the highest roof pitch first and followed by the lower pitch. To bend the flashing, use 2-by-4 lumber by pressing it gently until the flashing gets bent and matches the slope. Put the lumber aside.
- For the next step of joining two roofs with different pitches, you need to measure, mark, and cut two pieces of 1-by-1 lumber to work as the edges seals. Just like what you do with the flashing, slide the first piece under the higher roof first, then place the second piece under the lower roof.
- Make sure to keep 1-by-1 lumber pieces in their place, and drop some butyl caulker along. Let it dry.
- Now, stick the flashing to the roof using metal screws along its four sides. Each screw is spaced around 6 inches. Measure and add it by 1 inch, then cut a piece of underlayment. Slide the underlayment beneath the still-existing shingles and secure the underlayment by nailing it using roofing nails.
- Make it neat by folding the flashing edges around the roof’s edges and along the eave’s bottom. Attach the folds using metal screws. Before joining two roofs with different pitches, you can temporarily remove the eaves’ trim and replace it after joining the roofs.
- After joining the two roofs, cover the flashing with shingles for a seamless look. The shingles should overlap to provide full coverage over the combined area. Remember to replace any eave trim you may have removed during the process. With these steps, your existing roof will have a new, unified appearance.
Roof work involves risks due to height and uneven surfaces. It’s wise to conduct multiple surveys and practice sessions before attempting to join two roofs with different pitches. This preparation helps you become familiar with the roofing surface and ensures safer working conditions.
That way, you can get used to walking on the roofing surface and adapt yourself well to work in such a condition. Always use gloves and goggles to keep yourself safe.