How To Tie In A Roof To An Existing Roof? – Detailed Guide

The rooftop gives an amazing look to your home and many people enjoy sitting under it. The best and most beneficial thing about the rooftop is that it reduces the heat and ambient temperature. Also, you can enjoy the rainy weather as it prevents water leakage and provides a beautiful view. During summer most people love to sit under the roof-top to enjoy the cool summer breeze.

Well, many people question how to tie a roof to an existing roof in order to get relief from bright sun rays. In this article, I will let you know the method of tying a roof to an old one and to get the same best results. Keep on following the article to know things regarding tying a roof to an existing roof in a good and simple manner.

How To Tie In A Roof To An Existing Roof?

How To Tie In A Roof To An Existing Roof

Tying a roof on your home top is one of the most delicate things that you can do. It gives an attractive appearance to the viewer and prevents harmful sun rays. If you are the one with the same question in your mind as how to tie a roof to an existing roof then you are at the right place. Placing a new rooftop to an exciting one is quite difficult and it requires a lot of hard work and time.

Doing this process needs a lot of accuracy and precision. Well, there are different steps and methods of doing it but here I will share the easiest method of tying the new roof on an old one. The rooftop makes sure that the rainwater runs off so that you can fully enjoy the weather.

Method to Tie in a Roof to an Existing Roof like an Expert

Ways Of Tying Roof Top

1. Frame The Roof

The first and most important step is that you need to frame the rooftop in order to set the new one accordingly. You have to take a proper mark of all sides and edges so that it fits perfectly. Make sure that you also mark the shingles with the chalk to clearly notify the places and to take appropriate measurements.

The shingles are basically the area where you need to tie the rooftop of your home. It is better to take measurements of the old shingle strip as it will give the most accurate frame of the roof. If the old rooftop is not in a good condition, it would be better if you remove it first.

2. Install A Valley Board

The second step after framing the rooftop is to install a valley board. You can install a valley board on the already existing roof only if you have measured the frame properly. To install a valley board you need to check and measure the area of the slope, which is the actual distance from the ridge to the home wall. Calculate that area and use the roofing cement and nails for installing a valley board on an exciting roof. Doing this will prevent water leakage.

3. Underlayment & Sheathing

The third step is to install sheathing on the valley board and you can use nails for installing it. Make sure that for accurate installation you use the proper and appropriate size nails that easily get into the valley board and plywood. Also, make sure that you keep a proper gap and space of about ⅛ inch between sheathing so that you can get an amazing and smooth sheathing experience.

4. Remove Shingles Next To Valley Board

Now, you can remove the shingles near the valley board and use underlayment to prevent water leaking. This will help you to snap the valley board a few inches down to cover up the area from sun rays. Make sure that you do this step carefully and precisely.

5. Tie Into Existing Roof Shingles

The final and last step is to tie a roof to an existing rooftop. You need to remove each shingle one by one from the new valley board until you reach the base. Make sure that you properly place each shingle accordingly as you have to reuse them again. Proper spacing between is very necessary to get amazing tying results. You have to reinstall the shingles on the new valley when it reaches the existing roof level. Secure the shingles by keeping a gap of almost 4 inches from the valley’s board.

FAQs about Roof Tying

How do you tie a gable roof to an existing roof?

Yes, you can tie a gable roof to an existing roof by following each step precisely and accurately. Doing this will help you tie the old roof to the new one.

Can you build a roof over an existing roof?

Yes, you can build a roof over an existing roof by adding a new layer of shingles in an appropriate manner.

What is a roof tie?

Roof tie is basically an installation process of rooftops by using the closest possible rafters or top plates.

Final Remarks

The rooftop provides an amazing habitat for wildlife and plants. There are many benefits of tying a rooftop so in order to avail all advantages you need to tie one correctly. My guidance will surely help you to accurately tie the new rooftop to an existing roof in order to enjoy a unique home appearance.


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