building valuations


Asphalt Flat Roofs


If you need help and advice with regard to structural surveys, building surveys, engineers reports, defects reports, including things such as roof problems, cracks, dampness, condensation, foundation problems, etc, home buyers reports. Please free phone today on 0800 298 5424 for a friendly chat.

Asphalt flat roofs

Asphalt flat roofs are one of the best roofing materials for a flat roof and generally are considered to have a life of 30 to 40 years, that is assuming they are laid correctly and detailed correctly.

Free phone 0800 298 5424

Problems we have seen with asphalt roof deckings

One of the most important things with asphalt is to ensure that it sits on a firm decking. We have found that asphalt tends to work best when sat on a concrete decking, whereas if it sits on a timber decking it can have some deflection, which leads to cracking and ultimately to dampness getting in the property.

Plants growing out of asphalt are never a good sign!

Asphalt on permanent metal shuttering?

We have not personally come across this and would be interested to see if it can be done or not. There would be quite a lot of movement within a permanent shuttering and therefore this would have to be planned for within the design.


Asphalt roof problems things to look out for


No solar reflective paint

Some asphalt roofs have a solar reflective paint that is silver or white in colour. This does tend to throw the inexperienced person as to what the roof actually is. This is a paint applied over the top of the asphalt to help reduce damage from the sun's rays. Unfortunately, this can also hide problems unless you look carefully.

Asphalt with blisters

Asphalt blistering

Exactly like a blister on your finger, blistering can occur to asphalt. If this is found it needs to be cut out and repaired, because again, exactly like a blister on your finger, it can burst and crack open and again ultimately allowing dampness into the property.

Close up of asphalt blistering


This occurs where the asphalt literally goes like a crocodile's skin. You need to make sure that the crocodiling is in the asphalt rather than in the paintwork. This needs to be cut out and repaired.

Asphalt with crocodile type pattern

Cracking to asphalt roofs

Where there is some movement, or poor detailing, cracking occurs. This leads ultimately to water getting into the structure.

Water sitting on asphalt roofs

Whilst an asphalt roof can withstand water sitting upon it probably longer than most types of flat roofs, it does ultimately start to damage it. The beauty of asphalt is that you can, to some extent, amend the detailing by applying further asphalt on top of the original.  


How is asphalt applied?

Whilst specifications do vary, generally the asphalt is warmed up and applied hot and literally put on with a trowel onto the roof in two or three coats.



Asphalt to steps, which is on the move, but do you know why?

Asphalt detailing around roof lights

As found that sometimes the asphalt detailing around roof lights can be a weak area, possibly because a roof light is literally an opening in the roof and may deflect slightly more than the rest of the roof, particularly if the water ponds around the roof light, which it often seems to do.


Ponding to asphalt where the fall is insufficient to take the water away

Independent surveyors

If you truly do want an independent expert opinion from a surveyor with regard to roof windows, roof lights, velux roofs, dormer, dormer roofs, roof problems, chimneys, surveys, building surveys, structural reports, engineers reports, specific defects report, structural surveys, home buyers reports or any other property matters please contact 0800 298 5424 for a surveyor to give you a call back.

If you want independent commercial surveying advice please

read the following

If you have a commercial leasehold, freehold, etc, then you may wish to look at our Dilapidations Website at and for Disputes go to our Disputes Help site .

Written to create motion!

We hope you found the article of use and if you have any experiences that you feel should be added to this article that would benefit others, or you feel that some of the information that we have put is wrong then please do not hesitate to contact us (we are only human).

The contents of the web site are for general information only and is not intended to be relied upon for specific or general decisions. Appropriate independent professional advice should be paid for before making such a decision.

All rights are reserved the contents of the web site is not to be reproduced or transmitted in any form in whole or part without the express written permission of

We have produced the following articles on roof issues:


Roof Problems

Common Pitched Roofs

Not So Common Pitched Roofs

Flat Roofs

Leaking Flat Roofs

Leaking Dormer Roofs

If you would like further advice on roofs, roof problems, roof repairs, roof materials, commercial surveys, building surveys, structural reports, engineers reports, specific defects report, structural surveys, home buyers reports or any other property matters then please phone 0800 298 5424 for a friendly chat.


building engineers



Home Buyers Reports Property Surveys - why we're the best. Engineers Reports
© Copyright
Site Map

1stassociated-logo-for-footer IVSA-badge IVSA-putting-client-first call-us-for-footer

New Survey Software for more information click here Survey Software 1st | Modern Methods of Surveying

We have thousands of free property articles to help you - or call us freephone on 0800 298 5424

We have been working in the property industry for many years and have been
providing free property articles for over ten years. All for free and to help you with buying your next property.

House and Home Surveys and Useful Information

All you need to know about Building Surveys

Building Control, what do they do?

Designers and Architects will they save me money or will they cost me money

Enviroment, Your Building and Garden Gnomes

Estate Agents help sell houses and work for the vendors

Have a Structural Survey to protect you against structural problems

Home improvements, builder problems and ideas for you on how to solve them

How a Surveyor values a property, Chartered Surveyors and Regulated Valuers

How Chartered Engineers and Building Engineers can help you

Listed Buildings and Conservation Areas

NHBC National House Building Council

Structural Surveys and How We Can Help You

Traditional and Non-Traditional Houses and Mortgage Problems

Valuations and how much is the building worth?

Whats the difference between a Chartered Building Surveyor, Chartered Surveyor and an Independent Surveyor

Useful property problem articles by Chartered Surveyors explaining building issues to avoid

External - Helpful information on building problems on the outside of the property

Chimney issues and problems

Cracking and Movement Problems and Surveying Solutions

Flat Roof Problems, how we can solve them

Foundations and Structures and Settlement and Subsidence and Underpinning

Pitched Roofs Problems and Solutions

Roof Problems

Wall Problems

Windows and Doors and Fascias and Soffits and Wet Rot and Dry Rot and other problems

Internal - House problems we have investigated inside

All you ever need to know about floors

Asbestos in your home, what you need to know

Ceiling Cracks and Structural Problems

Condensation, Damp and Black Mould Problems

Cracking and Movement Problems and Surveying Solutions

Windows and Doors and Fascias and Soffits and Wet Rot and Dry Rot and other problems

Woodworm is it a problem or not? Is it active or not?

Services - Building help and advice on costly services

Drainage, what's underground can affect what's above ground

Heating; I just can't get my house warm enough or alternatively I just can't get my house cool enough

You can't mess around with the electric, you need an expert


Commercial Property Services

Building Terms Explained and Directories

Commercial Property Surveys

Commercial Structural Surveys

Leisure Facilites

Offices Large and Small

Shops and Retail

Warehouse and Industrial Buildings

Dilapidations Help and Advice What is a Dilapidations Notice?

A Beginner's Guide to Dilaps

Damp Mould and Condensation

Dampness Rising Damp Mould Black Mould Condensation

Dilapidations and Negotiations

Dilapidations Claim by a Landlord

Energy Saving what can I do?

Finance what is a Financial Adviser (We are not Financial Advisors)

Fire Risk and Help

Health and Safety Risks

Insurance how do I get the correct property insurance?

Landlords Surveying Advice

Property Investment how can I invest in property?

Property TV Reviews by an Independent Surveyor

Schedules of Condition Leasing a Commercial Property

Scotts Schedule and Section 18 Valuation

Tenants Surveying Advice

Weather how does weather affect my property?



Snow and Ice

Strong Winds

Reviews from clients on Commercial Building Surveys

Churches and Charities, helpful reviews from our clients

Industrial Buildings and Warehouses and what our clients say about us

Offices Large and Small, reviews and feedback from our clients

Pubs, Restaurants, Hotels and other Leisure facilities we have surveyed over the years

Shops and Retail, helpful reviews from our clients


First Time Buyers

Buying a Leasehold or Shared Freehold Home

Buying and Selling Houses for the experienced house and home purchaser

First Time Buyers how do I go about buying my first house and home?

Improve your property knowledge with our presentations on house, homes and commercial property

Building Surveys

Building Surveying Useful Information


Dilapidations Presentations in Detail

Final Year Building Surveying Exams for University Students or those that would like to know more

How old is your Building? Which era was it built in?

Party Walls

Surveyors and Design Tools

Disputes and Party Walls

Boundary Disputes

Building and Property Disputes

Party Wall Book Reviews

Party Walls Your Rights and Responsibilities

1stAssociated Surveyors Review for Structural Surveys and Building Surveys

Building Surveys, reviews and feedback from satisfied customers

Buy to let property clients, what they say about our structural surveys

Buying at auction, review of the survey

Buying bungalows and retirement properties and how our surveyors can help

Both at work / busy couples, how we can help and some 1stAssociated client reviews

Families with a young person flying the nest, reviews and feedback

First Time Buyers, what they say about us

Listed buildings, structural surveys

Older buildings, a review of buying an older house

Families with children looking for a new home, feedback and reviews

Buying a Non-Traditional Property

Residential Surveys

House and Home Surveys

Commercial Building Surveys

Commercial Surveys

1st Associated Surveyors Are Also Available in the Following Areas:

East Anglia and East

South and South East

West Country and South West


North and North East



London Markets

London Parks



Areas of Britain

1stAssociated Independent Expert Property Surveyors

Specialists in Home Buyers Reports, Building Surveys and Structural Surveys and Schedules of Condition

All Surveyors are Royal Institution of Chartered Surveyors qualified and RICS regulated

and are Members of the Independent Surveyors and Valuers Association

Putting the Client First

We do not accept service of documents by email or fax