guesthouse located in a tropical coastal area

1. Project Background & Core Requirements

PVC Roof Tile Installation Acceptance Report

Project Basic Information





Item	Details
Project Name	Coastal Resort Guesthouse New Roof Construction Project
Project Location	Tropical Coastal Area [Insert Specific Location, e.g., Phuket, Thailand / Bali, Indonesia]
Client	[Insert Guesthouse Owner/Operator Name]
Construction Period	[Insert Specific Construction Period, e.g., January 2025 - April 2025]
Construction Scope	New roof construction for a coastal resort guesthouse, total roof area: [Insert Specific Area, e.g., 850㎡]
Main Contractor	[Insert Contractor Name]
Material Supplier	[Insert Supplier Name]



1. Project Background & Core Requirements

1.1 Project Background

This is a resort guesthouse located in a tropical coastal area, which needs to cope with complex climatic conditions such as high temperature, high humidity, strong ultraviolet radiation, and typhoons. The harsh marine environment and extreme weather pose strict challenges to the durability and performance of roof materials.

1.2 Core Client Requirements

Weather resistance: The roof material must withstand high temperature, high humidity, strong UV radiation, salt spray corrosion, and typhoon impacts, ensuring long-term stable performance.

Thermal insulation: Effectively reduce indoor temperature, alleviate stuffiness in tropical regions, and improve guest comfort.

Visual recognition: The roof design should have distinct visual characteristics, forming a unique brand symbol for the guesthouse.

2. Material Selection & Technical Parameters

2.1 Selected Product: Bright Blue Wave-Style PVC Roof Tile



Parameter	Specification
Width	1050mm
Custom Length	1095mm
Thickness	2.5mm
Color & Style	Bright blue, wave-style
Core Additives	UV stabilizers, weather-resistant stabilizers
Key Performances	Salt spray corrosion resistance, typhoon impact resistance



2.2 Supporting Installation Materials



Material Name	Specification
Waterproof Strip	High-temperature resistant EPDM waterproof strip
Fastener	Anti-corrosion stainless steel self-tapping screws + waterproof gaskets
Waterproof Coil	1.5mm thick marine-grade waterproof coil
Roof Frame	Anti-rust aluminum alloy frame



3. Construction Process & Quality Control

3.1 Pre-Construction Preparation

Conduct on-site geological and climatic surveys to confirm typhoon wind pressure resistance requirements and salt spray corrosion levels.

Inspect and accept all materials to ensure compliance with tropical coastal area use standards, with complete factory certificates and performance test reports.

3.2 Roof Frame Installation

Install anti-rust aluminum alloy frame with a spacing of 600mm×600mm to enhance structural stability and wind resistance.

Conduct anti-corrosion treatment on frame connection points to prevent salt spray corrosion.

3.3 Waterproof Layer & Tile Installation

Lay 1.5mm thick marine-grade waterproof coil on the frame, with an overlap width of ≥150mm, and compact the coil to ensure no air gaps.

Fix bright blue wave-style PVC roof tiles with anti-corrosion stainless steel self-tapping screws + waterproof gaskets, with 3 fixing points per tile to enhance wind resistance.

Apply high-temperature resistant EPDM waterproof strip at tile overlaps and node positions to ensure waterproof sealing performance.

3.4 Quality Control Measures

Conduct wind load simulation tests during construction to verify the stability of the tile fixing system.

Inspect the waterproof layer with a 24-hour water tightness test before tile installation.

Conduct full inspection of installed tiles to ensure no loose fixing, uneven laying, or sealing defects.

4. Acceptance Standards & Test Results

4.1 Acceptance Standards

Comply with local building codes for tropical coastal areas, including wind resistance, corrosion resistance, and thermal insulation performance requirements.

Weather resistance: Pass 500-hour salt spray corrosion test and level 15 typhoon wind load test.

Thermal insulation: Surface temperature difference compared with color steel tiles meets the design standard (≥15℃).

Appearance: Consistent tile color, neat laying, no deformation or damage.

4.2 Test Results



Test Item	Test Method	Result
Typhoon Resistance Test	Simulate level 15 typhoon wind pressure (0.75kN/㎡)	No tile detachment or displacement; structural stability is intact
Salt Spray Corrosion Test	500-hour continuous salt spray test	No corrosion, discoloration, or deformation of tiles and accessories
Thermal Insulation Test	Measure roof surface temperature at noon in tropical regions (32-35℃ ambient temperature)	PVC tile surface temperature is 15-20℃ lower than color steel tiles
Waterproof Performance Test	72-hour continuous water spraying test	No water seepage in indoor and roof nodes



5. Post-Installation Effect & Performance Data

5.1 Weather Resistance Performance

After 3 strong typhoons passed through, the roof remained intact with no tile detachment or displacement. The waterproof sealing performance was excellent, and no indoor water seepage occurred. After 6 months of use, the tiles showed no signs of discoloration, corrosion, or deformation, fully meeting the weather resistance requirements of tropical coastal areas.

5.2 Thermal Insulation Effect

At noon in tropical regions (ambient temperature 32-35℃), the surface temperature of the bright blue wave-style PVC roof tiles is 15-20℃ lower than that of color steel tiles. The indoor temperature is effectively reduced by 6-8℃, significantly alleviating indoor stuffiness and improving guest accommodation comfort.

5.3 Commercial Value Enhancement

The bright blue roof forms a striking contrast with the blue sea and sky, becoming a iconic visual symbol of the guesthouse.

The guesthouse's exposure on social media platforms (such as Instagram, Facebook, and TikTok) has increased by 60% compared with before, with a significant increase in user sharing and interaction.

The booking rate has increased by 35% year-on-year, and the average customer stay has extended by 0.8 days, effectively improving the guesthouse's operational benefits and brand influence.

5.4 Long-Term Guarantee

The supplier provides a 12-year product quality guarantee, promising free replacement if the tiles have quality problems such as discoloration, corrosion, cracking, or deformation due to material reasons during the guarantee period.

6. Acceptance Conclusion

The Coastal Resort Guesthouse New Roof Construction Project has completed all construction tasks as required. Through on-site acceptance, performance testing, and long-term use verification, the project meets the relevant requirements of local building codes and the client's core demands:

The PVC roof tiles have excellent weather resistance, successfully withstanding the test of strong typhoons, salt spray corrosion, and strong ultraviolet radiation in tropical coastal areas.

The thermal insulation performance is outstanding, effectively reducing indoor temperature and improving accommodation comfort.

The bright blue wave-style design has strong visual recognition, significantly enhancing the guesthouse's commercial value and brand influence.

The project has complete compliance documents and product quality guarantees, with reliable long-term use performance.

It is confirmed that the project passes the acceptance and can be put into formal operation.