Certainly, I can provide information in English. It seems like you're interested inasphalt roof installation fairfax. Here's some guidance on how to approach this:

1. Research Roofing Companies: Begin by researching roofing companies in the Fairfax area that offer asphalt roof installation services. Use online search engines, local directories, and social media platforms to gather a list of potential contractors.

2. Check Credentials: Ensure that the roofing companies you consider are licensed, insured, and have a good reputation. Look for online reviews and ratings from previous customers.

3. Request Quotes: Contact several roofing companies and request quotes for your asphalt roof installation project. Make sure to provide them with accurate information about the size of your roof, any specific requirements, and any existing issues.

4. On-Site Assessment: Reputable roofing companies often provide on-site assessments to evaluate the condition of your roof and provide a more accurate quote. During this assessment, you can discuss the scope of the project and ask any questions you may have.

5. Compare Quotes: Compare the quotes you receive from different roofing companies. Be sure to consider not only the price but also the quality of materials, workmanship, warranties, and any additional services offered.

6. Ask About Materials: Inquire about the types of asphalt shingles they offer. There are different grades and styles available, so discuss your preferences and budget with the contractors.

7. Project Timeline: Discuss the expected timeline for the project. A professional roofing company should be able to provide you with an estimated start and completion date.

8. Warranties and Guarantees: Ask about warranties on both the materials and the installation work. A reputable company should provide warranties to ensure the longevity and quality of your new roof.

9. Contract and Agreement: Once you've selected a roofing company, make sure to sign a detailed contract that outlines the scope of work, materials to be used, project timeline, payment schedule, and any other terms you've agreed upon.

10. Prepare Your Property: Before the installation begins, clear the area around your property to provide the roofing team with easy access to your roof.

11. Communication: Maintain open communication with the roofing company throughout the project. Address any concerns or questions promptly.

12. Final Inspection: Once the installation is complete, perform a final inspection with the roofing company to ensure that the work meets your expectations and is done according to the contract.

By following these steps, you can find a reliable roofing company to handle your asphalt roof installation project in Fairfax and achieve a durable and well-installed roofing system for your property.