Shingle Roofing Installation Guide for Commercial Buildings
The roof is the most important part of any building that provides protection to it. Primarily for commercial buildings, shingle roof installation is a complex process that must be done carefully. It not only provides security to the building but also enhances its beauty. It is very important to understand the process of installing shingle roofing.
In this guide, we will understand the entire process of installing a shingle roof in detail. From the preparation of the roof to the final layer, it is necessary to carefully understand every stage. A properly placed shingle roof works firmly for many years and keeps the building safe in all weathers.
1. Roofing Preparation
The roof should be thoroughly cleaned before applying shingles. Remove all the old roof material and level the roof. There should be no potholes or cracks on the roof surface. Check the roof to see if there is any water leakage. It is imperative that the roof foundation is strong. It is very important for the slope of the roof to be correct so that water can flow easily. Look at the space around all pipes and vents with special attention. Check for flashing needs around chimneys or other structures on the roof. Cut off the branches of trees around the building that can damage the roof. Also check if there are insects or rot in the wood under the old roof.
2. Installation of the underlayment
The underlayment is a special layer that is applied under the shingles. This layer protects against water and strengthens the shingles. The underlayment is applied from the bottom up. Its layers should be slightly mounted on each other. Fix the underlayment well with nails. Avoid planting the underlayment in cold weather as it tends to harden. Keep an overlap of at least six inches when overlapping layers of underlayment. Be sure to check the weather forecast before applying the underlayment. Fold the underlayment at the edges so that water does not get in. Carefully cut and apply the underlayment around the vent and pipe.
3. Applying Starter Shingle
Starter shingles are special shingles placed in the first row. They are installed starting from the lower part of the roof. It is very important to put the starter shingle in a straight line. All shingles above this will be applied correctly. Fasten the starter shingle well with the nails. Mark the starter shingle with a chalk line before applying. Use a sharp and clean blade when cutting starter shingles. Check the roof edge strength before applying the starter shingle. Allow the starter shingle to cool slightly before applying it in hot weather. Don’t forget to apply drip edge flashing under the starter shingle.
4. Applying the main shingle
The main shingle is mounted in order from the bottom up. It is important to place the shingle in a straight line in every row. The layers of shingles should be slightly mounted on each other. Four to six nails should be placed in each shingle. It is very important to put the nails in the right place. Wear protective goggles and gloves when cutting shingles. Don’t put too many shingles on the ceiling at once. Check the quality of shingles before applying them. Do not use broken or worn shingles. In summer, it is easier to apply shingles early in the morning or in the evening.
5. Establishing the Valley
The valley is where the two terraces meet. Water is collected more in the valley, so it should be set up carefully. Special flashing is installed in the valley. The shingles on both sides of the valley are carefully cut and planted. Keep in mind that water can flow easily in the valley. Install a valley guard to prevent leaves and garbage from accumulating in the valley. Use special cutting tools when cutting shingles in the valley. Use ice and water shields in the valley. The slope of the valley should be at least one inch per foot. The color of the shingle on both sides of the valley should match.
6. Setting the edges
It is important to pay special attention to the edges of the roof. Edge shingles are applied on the edges. Flashing is also applied on the edges that prevent water. The shingles of the edges should be well nailed to the nails. Take special care that the wind does not uproot the shingles from the edges. Use a metal drip edge on the edges to drain the water away. Check the shingles on the edges every year and replace the broken one. Use extra sealant on the edges. Apply the shingles of the edges in a double layer. Use a starter strip on the edges.
7. Setting up the ridge
The ridge is the topmost part of the roof where the two slopes meet. Special ridge cap shingles are placed on the ridge. The ridge cap should be well nailed on both sides. Water from the ridge should flow downwards. The ridge is established last. Use the vent to reduce the air pressure on the ridge. Apply the ridge cap shingle warmly so that it sticks well. Apply the shingle of the ridge overlapping so that the water does not seep in. Put extra nails on the ridge that will last even in the storm. Use ventilated ridge tape under the shingle of the ridge.
8. Ventilation system
Air circulation in the roof is essential. Vents are installed for this. Both ridge vents and soffit vents are essential. The number of vents is decided according to the area of the roof. The shingles surrounding the vent are carefully applied. Take care not to let water in from the vent. Place screens around the vent that prevent insects. Use flashing around the vent that blocks the water. The number of vents should be one every 300 square feet. Do not apply insulation around the vent that will prevent air flow. Use power vents that provide extra ventilation in the heat.
9. Final Checking and Cleaning
After applying the shingles, the entire ceiling should be checked. Check if all the nails are in place correctly. Check if there is any shingle loose. Remove all trash from the roof and clean-up. Do not leave any tools or accessories on the roof. Check for leaks by pouring water on the roof. Double-check all flashing and sealants. Collect all the nails and pieces of metal from the ceiling with magnets. Clean all vents and gutters. Take photos of the entire roof that will come in handy in the future.
Shingle roof installation is an important job that must be done carefully. A properly placed shingle roof lasts for many years. It not only protects the building but also enhances its beauty. By following this guide, you can create a sturdy and durable shingle roof.
