Put vents into the roof or do the following.
Best to get an on site survey/quotation done, this is a free service to you and you will get 3 quotes. Simply post your job onto rated people's site.
You are not obliged to go with any of the quotes- but ever job that's posted is paid for by the relevant tradesmen.if they contact you that means they are interested in your job. If one of them are awarded the job then great news for you both.
Your roof requires venting to get air flow in to your loft space, condensation is not good as it can attack your timbers and give you problems in the future that will cost you a lot of money to resolve the problem..
hi janet the reason you are getting condensation is because your roof needs ventilation and probably needs insulation upgrading due to excess heat rising through the insulation and meeting a cold front which causes condensation.
You may need to install some vents . If you have slates on your existing roof then you would use slate vents or if its tiles then tile vents. Neither are too expensive. Please ensure that you have the correct amount fitted as you have to make sure air is being circulated .
This will help
There are several things that can help stop condensation in a loftn space. worst case scenario, you may need to replace old felt underlay withh a modern, breathable one. But in the majority of cases it occurs due to little or no airflow, and getting the air to recirculate.
Vent tile/slate are effective, 2 per side of the roof. one high towards the ridge, and one low towards the eaves.
If the problem is new rather than ongoing, look to previous work carried out. Loft insulation can block the eaves and stop existing airflow (many DIY jobs assume the more you jam it in, the better the job).Also, 'blew in' cavity wall insulation can do the same as it spreads out in the cavity, it can overflow at the eaves and block them off.
UPVC rooflines can prevent airflow as they tend to be sealed to give a smarter finish, so proper vents must be installed.
Hope this helps.